Related references
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INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
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Summary: This article proposes a novel concept of diameter adjustable mandrel (DAM) based on multi-point contact for adapting different diameter tube bending processes. The FP-RE model is introduced to evaluate the point-contact characteristics of DAM and measure the deformation degree of the bending cross-section. The experimental results demonstrate the effectiveness of DAM in improving the forming quality of tubes with different diameters.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
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Guannan Chu et al.
Summary: The axial hydro-forging process is a promising alternative for forming variable-diameter tubes, but wrinkle defects are a primary concern. This study established an analytical model based on corner wrinkling phenomena to investigate the mechanism and calculate critical pressure in the corner filling stage. Experimental and numerical analysis were conducted to explore the effects of initial corner radius, thickness, and friction coefficient on critical pressure. The results confirmed that wrinkle formation can be suppressed when the internal pressure is above the critical pressure, validating the practical significance of the proposed analytical model for the hydro-forging process.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
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Automation & Control Systems
Zonghui Cheng et al.
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INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
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J. A. Lopez-Fernandez et al.
Summary: Conventional flanging processes are commonly used in the automotive and aeronautical industry, but incremental flanging has emerged as a promising alternative for small batch production. This study presents an analysis of the formability and failure of shrink flanges produced by single point incremental forming (SPIF) on AA2024-T3 sheet. Experimental tests varying the flange's initial dimensions and die radii were conducted, establishing the process window for different parameters. Two modes of failure, wrinkling and incipient wrinkling, were identified. The stress evolution of the flanges was analyzed using a finite element model, and a numerical methodology for predicting wrinkling onset was proposed.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
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Zhanshou Yang et al.
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JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
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Ali Shabani et al.
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Andrey G. Mochugovskiy et al.
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Crystallography
Ji He et al.
Summary: This paper proposes a new method based on the bifurcation phenomenon in strain evolution to detect the onset of localized necking through DIC measurements, eliminating the need for derivative calculation. The method provides satisfactory forming limit results and can be used as an alternative method to determine the forming limit diagram (FLD).
Article
Engineering, Manufacturing
Xiaomin Huang et al.
Summary: This study investigates the behavior of springback, wrinkling, and thinning defects during the stamping of thin-walled semicircular shells with bending angle. An analytical model, experiments, and finite element simulation are used. Results show that the maximum springback decreases and the thinning rate and wrinkling defect increase with increasing blank holder force. The stamping speed has a smaller effect on defects compared to the blank holder force.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
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S. M. Ji et al.
Summary: Several flow features revealed by hot cylinder compression tests were analyzed and compared in terms of formability for different materials. The shapes of cylinder-compressed specimens were analyzed and their relation to formability was investigated. The cylinder compression evaluation factor (CCEF), which includes the maximum radius increase and the averaged minimum radius increase, was used as an index of formability. The effect of temperature on formability was quantified using metrics such as CCEF and temperature softening formability index (TSFI). It was found that CCEF and TSFI are useful for evaluating the formability of tested materials, and temperature softening significantly affects the formability of metallic materials.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
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Summary: The thermal compression deformation behavior of the Mg-5Zn-1Mn alloy was investigated over a range of temperatures and strain rates. The study established a constitutive model and thermal processing diagrams and analyzed the microstructure evolution and dynamic recrystallization mechanisms. The results showed that the alloy exhibited prominent dynamic recrystallization characteristics, with peak stress improving at lower temperatures and higher strain rates. The study also identified the main recrystallization mechanisms and established suitable processing conditions for large plastic deformation.
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Zhicheng Yang et al.
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Shenghan Hu et al.
Summary: This study proposes a free-bending equipment based on a six-degree-of-freedom parallel mechanism, which achieves control over tube bending by changing the deformation zone length. The effectiveness of this method is verified through theoretical analysis, finite element simulation, and experimental validation.
CHINESE JOURNAL OF AERONAUTICS
(2023)
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Gang Chen et al.
Summary: Tensile deformation is the most common principle in sheet forming, but a new tube forming process, tube hydro-forging, has been developed based on compression deformation. Apart from the instability problem, a new surface defect, thickness distortion, was discovered. This study analyzes wall thickness distortion from a mechanical and deformation perspective. It is found that a bending moment exists in the low pressure tube hydroforming process, leading to small wrinkles in the straight wall. As compressive deformation increases, these small wrinkles develop into thickness distortion. Wall thickness and compressive strain are identified as major factors affecting this phenomenon. Experimental and simulation techniques verify the findings. This research contributes to the understanding of new surface phenomena in compressive deformation.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
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Article
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Zhen Wu et al.
Summary: In order to prevent the wrinkling behaviors of sandwich structures, this work attempts to improve stiffness of face sheets reinforced by carbon nanotubes (CNTs). An equivalent single-layer model is proposed to accurately analyze the wrinkling behaviors of sandwich structures. The influence of distributions of the CNTs through thickness on the buckling and wrinkling behaviors for the sandwich beams will be investigated in detail.
JOURNAL OF AEROSPACE ENGINEERING
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Chemistry, Physical
Aida Azizi et al.
Summary: The present study investigated the hot deformation behavior of AA4032 alloy modified with Ni and Cu. The effect of extra copper and nickel on the microstructure and phase formation was studied. The best hot working condition was found to be at a temperature range of 720-780 K with a strain rate of 0.001-0.03 s1.
JOURNAL OF ALLOYS AND COMPOUNDS
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Chemistry, Physical
M. Myshlyaev et al.
Summary: In this study, the advanced capabilities of electron backscatter diffraction (EBSD) were used to investigate the role of dynamic recrystallization in the superplastic deformation of a fine-grained material. The results showed that dynamic recrystallization occurred only locally and had a minor contribution to microstructural evolution. Therefore, the preservation of the nearly-equiaxed grain morphology associated with superplasticity cannot be attributed to dynamic recrystallization.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
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Construction & Building Technology
Zhiyang Xie et al.
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JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2023)
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Nitish Raja et al.
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JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Z. Wang et al.
Summary: This study constructs the forming limit curve (FLC) of AA6061-T4 sheets using in-plane biaxial tensile tests with two distinct cruciform specimens, covering a wider range of strain paths. Four different necking detection methods are investigated and proper ones are selected based on finite element modeling and the Marciniak test. An anisotropic Gurson-Tvergaard-Needleman (GTN) plasticity model is calibrated and implemented to reproduce the behavior of AA6061-T4 sheets. The predicted FLCs show good agreement with the experiments, indicating the effectiveness of the numerical biaxial tensile test combined with the anisotropic GTN plasticity model for predicting sheet metal formability.
MECHANICS OF MATERIALS
(2023)
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Materials Science, Multidisciplinary
Tianxiang Xue et al.
Summary: A novel Fe-6.5Si-2Cr-12Ni high-silicon steel was fabricated and studied, with the presence of A2 disordered phase, a-Fe phase, and a small amount of B2 ordered phases. The hot workability of Fe-6.5Si-2Cr-12Ni alloy was affected by microstructural defects such as flow localization, as well as the occurrence of dynamic recovery (DRV) and dynamic recrystallization (DRX). Processing maps provided guidance on the appropriate temperature and strain rate ranges for hot workability. K-fiber, c-fiber, and a-fiber textures were observed in the deformed Fe-6.5Si-2Cr-12Ni samples.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
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Yizhe Chen et al.
Summary: Tube upsetting-bulging (TUBG) is a novel forming method that overcomes the issues of traditional technology in fabricating rocket nozzles. With the support of internal pressure, the tube undergoes simultaneous upsetting and bulging, resulting in a nozzle with varying diameters. A theoretical model considering wrinkles and rupture is proposed, and the influence factors of internal pressure during TUBG are discussed. Experiments and simulations show that mechanical properties and geometrical parameters significantly affect the critical internal pressure, and the proposed model accurately predicts a forming zone without defects.
Article
Chemistry, Physical
Lintao Zhang et al.
Summary: This study investigates the feasibility of predicting the post-necking behaviour of materials using a miniaturised non-standard tensile specimen. Experimental work focuses on determining the Lankford coefficients and using digital image correlation for calibration. Numerical simulations analyse the influence of size effect on post-necking behaviour. The findings highlight the need for caution when comparing behaviour of small-scale tensile tests to standard full-size specimens, but also provide confidence in understanding post-necking behaviour.
Article
Materials Science, Multidisciplinary
Ho Young Jeong et al.
Summary: High-temperature compression tests were conducted on the AISI 4340 alloy to explore its hot deformation properties. Stress-strain curves of the material were obtained based on the experimental results. An instability map was built for each true strain, and the deformation behavior was investigated using finite element analysis. A reinforcement learning-based optimization algorithm was developed to determine the optimal processing parameters and successfully avoided unstable domains. The proposed approach was validated through optical photography and electron backscatter diffraction.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
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Materials Science, Multidisciplinary
Kai Ling et al.
Summary: The hot deformation behavior of the Al-4.96Cu-0.96Mg-0.63Ag-0.57Mn-0.13Zr-0.02Ti alloy was studied by conducting hot compression experiments. The flow stress of the alloy decreases with increasing temperature and decreasing strain rate. The highest stress is reached at a large strain due to the difficulty of the dynamic softening effect to offset the work hardening caused by high-density dislocations. The optimal processing parameters region exhibits dynamic recrystallization as the dominant softening mechanism.
MATERIALS TODAY COMMUNICATIONS
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Yingxia Zhu et al.
Summary: This study introduces two new size factors, cross-section hollow coefficient and bending degree, to reveal the size effect of bending forming of bimetallic composite tube. The hollow coefficient and bending degree limit the size description range of commonly used bent tubes to (0, 2.00). The study also reveals the evolution laws of cross-section distortion forms and the influence of mandrel-cores on the size effect. Results show that mandrel-cores filling can expand the forming limit of bent tubes, but may also cause forming defects of wrinkles and ruptures. The identification factor (hollow coefficient multiplied by bending degree) provides a method for determining the cross-section distortion forms of all composite bending tubes.
CHINESE JOURNAL OF AERONAUTICS
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Arameh Eyvazian et al.
Summary: This comprehensive study investigates the thermal buckling instability and post-critical deflection of a rotating nanocomposite microbeam reinforced with graphene platelet. The study shows that reinforcing the microbeam with graphene platelet using an X-pattern enhances its static strength against buckling instability.
COMPOSITE STRUCTURES
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Meiling Guo et al.
Summary: This study investigates the instability and post-instability response of a rotating nanocomposite beam in a uniform thermal environment due to buckling occurrence using the Chebyshev-Ritz scheme. The beam is reinforced with graphene platelet. The results show that the graphene reinforcement has a negative effect on the thermal buckling stiffness of the nanocomposite beam at certain rotating speeds.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
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Hong Yang et al.
Summary: The buckling behavior of HRB600 high-strength steel bars and its influence on the seismic performance of RC columns were investigated through low cyclic loading tests. It was found that HRB600 reinforcement exhibited significant buckling displacement, leading to concentrated plastic deformation and low-cycle fatigue damage, premature fracture of bars, and decreased ductility of RC columns. Therefore, the use of RC columns reinforced with HRB600 longitudinal bars should be limited in high seismic intensity areas, and the limitation on the slenderness ratio of high-strength steel bars should be improved.
ENGINEERING STRUCTURES
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Engineering, Mechanical
Tianyin Zhang et al.
Summary: A novel method of buckling-induced forming is proposed to produce metal bellows. The tube billet is treated by local heating and cooling, and axial loading is applied on both ends to induce buckling and form convolutions. An apparatus is designed and developed to produce 304 stainless steel bellows, and the effects of process and geometric parameters on the final profile are studied using FEM analysis. The results show that the bellows formed by this method have a uniform shape and minimal reduction in wall thickness, requiring a small forming force.
CHINESE JOURNAL OF MECHANICAL ENGINEERING
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Engineering, Aerospace
Xuechao Li et al.
Summary: A dynamic mechanical model is proposed to describe the complex actions of all the rolls on the ring during the ultra-large radial-axial ring rolling (RARR) process with four guide rolls. The calculation models for bending moment and normal stress are deduced based on the proposed model. A plastic instability criterion and a mathematical model to calculate the critical guide force are developed to avoid plastic instability of the ring. The optimized layout of guide rolls around the ring is determined to improve stability.
CHINESE JOURNAL OF AERONAUTICS
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Article
Mechanics
Gaojian Lin et al.
Summary: This study investigated the dynamic stability of cylindrical fiber composite shells with metal liner subjected to uniform internal pressure pulse, revealing the pulse buckling of the inner metal liner and vibrational buckling of the outer fiber composite shell. Numerical simulations showed the effect of buckling amplitude of the inner metal liner on the dynamic stability of the outer fiber composite shell.
COMPOSITE STRUCTURES
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Zhicheng Yang et al.
Summary: In this study, an analytical investigation on the asymmetric static and dynamic buckling of a pinned-fixed functionally graded graphene nanoplatelet reinforced composite (FG-GPLRC) arch under thermal conditions was conducted. The accuracy of the analytical method was verified through numerical analysis, demonstrating a good prediction of the static and dynamic buckling of the arch. The study comprehensively discussed the influence of graphene nanoplatelets weight fraction, concentration, and geometry on the static and dynamic buckling of the arch, showing that the buckling load of the arch is sensitive to the applied load position under various elevated temperatures.
ENGINEERING STRUCTURES
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Engineering, Civil
Xuan Tung Nguyen et al.
Summary: This study presents a numerical investigation on the lateral-torsional buckling strength of a simply supported beam under fire and general loading conditions. The results show discrepancies in buckling resistance values provided by Eurocode 3 for beams with different load types. A new correction factor and equation are proposed to consider the effects of length to height ratio and non-uniform heating conditions on the buckling strength of steel beams.
FIRE SAFETY JOURNAL
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Automation & Control Systems
Xuan Cheng et al.
Summary: The study used FE modeling to analyze thin-walled AA6061-T6 rectangular tubes manufactured by FBF technology, showing that different parameters can influence the deformation behavior of the tubes. The results also indicate that within reasonable limits, certain parameters can reduce the thickness changing rate and cross-section distortion.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Automation & Control Systems
Hong Sun et al.
Summary: This study investigated the influence of different filler materials and parameters on the wrinkling behavior of aluminum alloy double-layered gap tube. It was found that hard and tough fillers have a significant inhibitory effect on wrinkling, and decreasing assembly clearance and increasing thickness ratio can effectively reduce wrinkling degree.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Haoxing Tang et al.
Summary: This paper proposes a finite element method (FEM) model considering nonuniform material properties to reveal strain transfer and reproduce diffuse instability in sheet metal forming. The model assigns discrete material properties conforming to random distribution functions to elements in FEM based on microhardness testing. The digital image correlation (DIC) method is used to validate the model with physical experiments. The influences of random distributions of mechanical properties and mesh size effects on simulation results are also investigated.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
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Materials Science, Multidisciplinary
Xingwei Zheng et al.
Summary: The hot deformation behavior of high-strength Mg-2.5Nd-0.2Zn-1.0Zr alloy was studied through tensile tests, with a constitutive relationship modeled using a hyperbolic sine equation. A processing map was designed, revealing a domain of instability at lower deformation temperatures and higher strain rates, as well as a stable domain with maximum power dissipation efficiency at specific temperature and strain rate values. Different fracture surface morphologies were observed on tensile samples with varying strain rates and deformation temperatures.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
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Materials Science, Multidisciplinary
Mi Wang et al.
Summary: This study investigates the bifurcations and necking phenomena of hyperelastic sheets under equibiaxial stretching conditions. The conditions for axisymmetric necking and the amplitude equation for bifurcated necking solution are derived. The results show that the critical stretch for necking is greater than the TK instability under force control, but is less than the critical stretch for the limiting-point instability. Abaqus simulations confirm the bifurcation conditions and demonstrate the suppression of TK instability under displacement control.
MATHEMATICS AND MECHANICS OF SOLIDS
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Materials Science, Multidisciplinary
Gang Chen et al.
Summary: Isothermal compression tests were conducted to study the hot deformation behavior of T2 copper, and a unified dislocation density-based model considering dynamic recovery and recrystallization was established. The developed model, with optimized material parameters, accurately described the flow behavior under a wide range of deformation conditions. Processing maps showed that the optimum deformation parameters for T2 copper are a temperature range of 700-800 degrees C and a strain rate of 0.1-1 s(-1).
METALS AND MATERIALS INTERNATIONAL
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M. S. H. Al-Furjan et al.
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POLYMER COMPOSITES
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Rui Li et al.
Summary: The applicability of eight uncoupled ductile fracture criteria was systematically studied and their predictive capabilities were compared and analyzed through numerical simulation and experimental comparison under various stress states.
JOURNAL OF MANUFACTURING PROCESSES
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Article
Engineering, Industrial
Y. Tanaka et al.
Summary: The critical pad load to suppress wrinkling in free bending is derived by analyzing the relationship between the pad lifting behavior and the wrinkle disappearing condition. Its effectiveness is confirmed through experimental verification.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
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Mechanics
Qilong Jia et al.
Summary: This paper presents a finite element framework for investigating the bending collapse behavior of composite thin-walled lenticular tubes. The simulation tests determine the appropriate analysis parameters for controlling the quasi-static process and verify the accuracy of the results. The collapse behavior is observed in two distinct regimes, with the critical parameters predicted.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Mahshad Fani et al.
Summary: Shape memory alloys are utilized in composite structures for their unique properties, such as shape memory effect and phase transformation. This study investigates the thermal buckling and post-buckling behavior of SMA hybrid composite laminated beams under uniform temperature distribution using non-linear equations derived from Reddy Bickford theory. The results show a significant increase in critical buckling temperature and decrease in beam deflection when SMA is added to the composite. Additionally, the theory has a noticeable effect on anti-symmetric layups, particularly for thick beams.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2022)
Article
Engineering, Mechanical
Kangcai Yu et al.
Summary: This study investigates the initial imperfection orientation and necking angles of the AA5182-O sheet, and examines the effects of anisotropy on necking angles and forming limit strains. An improved M-K method is proposed to enhance computational efficiency. The study provides insights into the deviation of necking angles and offers a modified theoretical equation.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Mechanical
Fei-Fan Li et al.
Summary: A comprehensive investigation is conducted on the ductile fracture of an extruded magnesium alloy at various stress states. The study finds that the fracture strain of the magnesium alloy varies with different stress triaxialities and the fracture mechanisms are influenced by second phase particles and deformation twins.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Chemistry, Physical
Xuejian Lin et al.
Summary: The hot deformation behavior of a Ti-47.5Al-2.5V-1.0Cr-0.2Zr alloy was investigated through thermal simulation experiments. A constitutive equation was established to describe the relationship between stress, strain rate, and temperature, and the predicted stress curve was consistent with the experimental results. The processing map identified the optimum hot deformation parameters, and the dominant deformation mechanisms of the TiAl alloy were DRX, dislocation movement, and twins.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Industrial
Xugang Wang et al.
Summary: This study established a novel device to evaluate cryogenic deformation behavior and verify the feasibility of cryogenic forming for complex aluminum alloy tubular components. The cryogenic biaxial stress-strain relations were determined using a new analytical model, and the cryogenic deformation mechanism was revealed by microstructure characterization. The research shows that cryogenic forming has great potential for the fabrication of complex aluminum alloy tubular components.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Haoxing Tang et al.
Summary: Commonly used wrinkling evaluation methods for sheet metal only consider symmetric specimen and loading, which may deviate from the reality. This study proposes a method using an asymmetric specimen under offset loading to examine the shear wrinkling properties. Results show that shear stresses dominate at wrinkling onset and the length and height evolution of the wrinkle are controlled by principal stresses.
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Ting Yang et al.
Summary: The deformation mechanism and microstructure evolution of the Mg-2Nd alloy during hot tensile deformation were investigated. It was found that the peak stress decreases and the elongation to fracture increases with increasing deformation temperature. The alloy contains fibrous extrusion zones (FEZs) and non-fibrous extrusion zones (non-FEZs), with the microstructure deformation in the FEZs being more pronounced. In the initial deformation stage, grain deformation occurs primarily in the FEZs, while recrystallization occurs in both FEZs and non-FEZs in the later deformation stage. The dominant deformation mechanism in the FEZs is intragranular slip, supplemented by grain boundary slip (GBS), while the dominant deformation mechanism in the non-FEZs is GBS, with coordinated intragranular slip. The recrystallization mechanism in the FEZs is continuous dynamic recrystallization (CDRX), while it is discontinuous dynamic recrystallization (DDRX) in the non-FEZs. Thus, the dominant hot tensile deformation mechanisms of the alloys alternate between intragranular slip, GBS, and dynamic recrystallization (DRX).
MATERIALS CHARACTERIZATION
(2022)
Article
Engineering, Civil
Qiyuan He et al.
Summary: This study predicts the wrinkling behavior in the flange region during incremental die forming using a theoretical approach. The approach considers the plastic behavior and shear stress caused by non-axisymmetric shape, and calculates the critical circumferential wrinkle stress. The accuracy and efficiency of the approach are verified through experiments and simulations, and the factors affecting wrinkling behavior are investigated.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Civil
Ali Ghiamy et al.
Summary: In this paper, the dynamic buckling of different types of sandwich plates under harmonic axial load is analyzed using numerical finite strip analysis and Bolotin's solution. The results indicate the importance of investigating the dynamic buckling of sandwich plates, and the finite strip method shows acceptable accuracy in this field.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Civil
Adriano Silva de Carvalho et al.
Summary: This study conducts a parametric analysis on alveolar beams with sinusoidal web openings, evaluating their global stability and lateral torsional buckling (LTB) strength, and comparing different analysis methods. The results suggest that there may be alternative methods to the traditional double-T approach, and that the AISC-360 standard may be unsafe under certain conditions.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Civil
Danfeng Zheng et al.
Summary: This paper investigates the energy absorption performance of curved tubes under transverse bending load and proposes a predictive model. Experimental results indicate that the curvature has a significant influence on the energy absorption effect under fully clamped condition, but a limited impact in the three-point-bending condition. Finite element models reveal that the shortening of plastic hinges determines the deformation modes of curved tubes based on geometric compatibility requirements.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Civil
Bing Du et al.
Summary: This paper focuses on the research of shear wrinkling in thin-walled components forming process. A numerical analysis model using the Buckle-Explicit algorithm in ABAQUS is established. The influence of different shapes and sizes on shear wrinkling is studied. A unified wrinkle judgment diagram is established for predicting specimens under different stress loading paths.
THIN-WALLED STRUCTURES
(2022)
Article
Multidisciplinary Sciences
Yao Tang et al.
Summary: By adjusting processing conditions, controllable structural gradients can be designed in bulk metallic glasses, resulting in enhanced plasticity and suppression of shear localization.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Wojciech Wieckowski et al.
Summary: This paper analyzes the forming process of surgical instrument handles made of Grade 2 titanium sheets. Sheet metal forming technology ensures high strength and lightweight products. Replacing stainless steels with titanium reduces instrument weight and provides resistance to corrosive environments in surgeries. Numerical analysis and experimental verification were conducted to adapt the technological process to forming tool handles using titanium sheets. It was found that applying a blank holder in the first forming operation eliminates sheet wrinkling in the flange area. The shape and dimensional accuracy of the drawn part after trimming were sufficient, eliminating the need for the fourth forming operation. Lubricating with rapeseed oil and boric acid prevents galling of titanium and ensures uniform plastic strain distribution in the drawn part.
Article
Materials Science, Multidisciplinary
Anjin Liu et al.
Summary: The hot deformation behavior and microstructure evolution of newly developed as-cast high-density steel were investigated. The steel exhibited higher activation energy and an increase in the degree of dynamic recrystallization with increasing temperature and decreasing strain rate.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Su Min Ji et al.
Summary: The flow behavior and the causes of fracture during warm forming of a Ti-6Al-4V alloy were investigated. The study revealed that macroscopic instability was the main reason for the decrease in forming load and subsequent fracture during warm forging.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Review
Metallurgy & Metallurgical Engineering
Faisal Nazeer et al.
Summary: This review article focuses on the superplastic behaviors of different magnesium alloys under uniaxial tensile loading, with an emphasis on low and high-temperature superplasticity, high strain rate superplasticity, deformation mechanism, thermal stability, texture evaluation, and fracture mechanism.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Construction & Building Technology
Yujie Yuan et al.
Summary: This study proposes a new design method that coordinates the precast beam-column joint with an artificial controllable plastic hinge. The method introduces three deformation coordination coefficients to manage the bearing capacity, rotational stiffness, and deformability between the hinge and reinforced concrete components. The results indicate that this design method can improve the deformability and ductility of the structure while guaranteeing structural integrity.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Pravendra Pratap Singh et al.
Summary: The study investigated the strain-rate dependent workability and flow instability in a (Nb+V) stabilized microalloyed steel, revealing an optimal sample processing window at medium strain-rates and flow instability at high and low strain-rates. The flow instability characteristics aligned well with the dynamic materials model, showing periodic serrations with negative strain-rate sensitivity.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Pravendra Pratap Singh et al.
Summary: The study examined the hot and warm deformation behaviors of a Nb-V added low carbon microalloyed steel, revealing that plastic flow was primarily controlled by strain hardening and dynamic recovery. The flow stress was predicted and it was found that the warm and hot deformation processes were governed by dislocation climb and glide mechanisms.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Sardar Muhammad Imran et al.
Summary: The purpose of this study was to determine the plastic deformation behavior of TC4 alloy with bimodal microstructure at hot forming conditions and establish a suitable constitutive model. The study revealed that the alloy exhibited complex deformation behavior with strain hardening, dynamic recovery, and continuous dynamic recrystallization. The processing map was established to determine the safe thermomechanical conditions for material hot forming. Modified Arrhenius type constitutive models and an optimized model (OPSCAM) were used to predict the deformation behavior of the alloy.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Automation & Control Systems
Jie Xiao et al.
Summary: This paper studies the cold push forming method for small-diameter and small bending radius with a 1D bending radius using low-melting-point alloy. The contact states between the filling medium and the tube are proposed to adjust material flow. Simulation methods are used to investigate the effects of contact modes on the quality of the elbow. Experimental verification is conducted. The results show successful fabrication of a specific thin-walled aluminum alloy tube using the push bending method with low-melting-point alloy as the filling medium.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Ling Qiao et al.
Summary: This study investigated the hot compressive deformation behavior of Co-free Fe2.5Ni2.5CrAl multi-principal element alloys and determined the optimum processing parameters, as well as revealed the main deformation mechanism.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Aneta Lukaszek-Solek et al.
Summary: The paper presents the hot deformation behavior of 4130 steel and the optimization of its processing parameters. Compression tests were conducted at various temperatures and strain rates to analyze material behavior under different thermomechanical conditions. The flow-stress curves and processing maps obtained from the tests were discussed.
Article
Engineering, Mechanical
Qiucheng Yang et al.
Summary: This study proposes an analytical model of the bending die trajectory for one-time forming of square tube spiral components, and reveals the laws of stress, strain, wall thickness distribution, and cross section distortion of these components during the forming process.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Mechanical
Hong Sun et al.
Summary: This study focused on the anisotropic characterization, prediction, and control methods of thin-walled double-layered gap tube during the rotary draw bending process. Accurate prediction was achieved through designing novel specimens and simulation models, while efficient control was realized by employing rigid and flexible constraints.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Industrial
Xugang Wang et al.
Summary: This study proposes cryogenic medium pressure forming method for fabricating aluminum alloy tubular components and evaluates the cryogenic forming limit using cryogenic bulging test and a modified M-K model. The results show that the forming limit of aluminum alloy tubes at cryogenic temperatures is approximately double that at room temperature, and the modified M-K model can successfully predict the cryogenic forming limit.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Industrial
Yoji Miyajima et al.
Summary: This study proposes a model for laminated metal composites to optimize the fabrication process by quantitatively assessing and predicting necking. The results indicate that introducing normalized neck amplitude and instability index as new parameters accurately predicts the degree of necking and can be applied to the fabrication of metal composites with different compositions using the accumulative roll bonding process.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Jie Sun et al.
Summary: This paper investigates the high temperature tensile properties of a single-phase FCC high entropy alloy and reveals that hot forging can refine the grain size and improve the tensile strength. The alloy exhibits different mechanical behaviors and fracture modes at different temperatures.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Xuewen Chen et al.
Summary: Microstructure is an important factor affecting the mechanical properties and service life of forgings. In this study, 3D hot processing maps were established to accurately describe the formability of materials during thermal processing. The results showed the optimal thermal deformation conditions and the method was effective in predicting and analyzing the formability of materials.
Article
Engineering, Civil
Seyed Pooria Mirkarimi et al.
Summary: The present study investigates the progressive collapse caused by a vehicle impact to the columns of a steel structure. The most critical situation for the impacted structure, in terms of the number of plastic hinges and the maximum deformations, is found to be when the column is removed after the impact, providing the most realistic simulation.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF CIVIL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Zhenduo Ma et al.
Summary: The hot deformation behavior of dual-phase Mg-9Li-3Al alloys was investigated through isothermal hot compression tests. Flow curves exhibited periodic fluctuation at high strain rates, which can be considered as the Portevin-Le Chatelier effect. The relationship among flow stress, strain rate, and deformation temperature was analyzed, and the deformation activation energy and basic material factors were calculated. A processing map composed of power dissipation and instability domains was established to reveal the hot workability. The formation of needle-shaped a-Mg phase was attributed to the deformation-induced transformation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Hui Yi et al.
Summary: By studying the hot deformation behavior and intrinsic machinability of Al-0.5Mg-0.4Si-0.1Cu alloy, an accurate constitutive equation and processing map were established, and the optimal process parameters of the alloy were optimized.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Mechanical
Bing Du et al.
Summary: This paper investigates the common defect in sheet metal forming, wrinkling, and explores the wrinkling phenomenon under different forming loads. By establishing numerical analysis models and using various algorithms, the wrinkling phenomenon of sheet metal under different working conditions is accurately predicted, and a unified wrinkling limit curve is established.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Automation & Control Systems
Yu Gaochao et al.
Summary: This paper presents a novel cold stamping process for producing large thin-walled pipeline elbows, overcoming forming defects such as wrinkling and lack of material. The process includes blanking, U-forming, O-forming, welding, and cutting excess material. The geometric parameters of the formed elbows meet the API 5L standard.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Automation & Control Systems
Lanfang Jiang et al.
Summary: A new mandrel design method with variation in the mandrel ball thickness was proposed to improve the bending quality of UTW tubes. The results showed that different combinations of mandrel ball thickness can effectively reduce the wall-thinning ratio and ovality of UTW bent tubes, improving the overall bending quality.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
J. C. Nieto-Fuentes et al.
Summary: This paper investigates the effect of porous microstructure on the necking formability of ductile sheets subjected to dynamic in-plane stretching. It compares finite element calculations with actual void distributions obtained from additively manufactured materials to simulations with a continuum plasticity theory that considers porosity as an internal state variable. The results show that the necking forming limits obtained from the two methods are in qualitative agreement, with the simulations including actual void distributions predicting greater necking strains. The study also reveals that voids promote plastic localization and their spatial distribution heterogeneity affects plastic localization.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Engineering, Manufacturing
G. Atxaga et al.
Journal of Manufacturing Processes
(2022)
Article
Materials Science, Multidisciplinary
Guojing Yang et al.
Summary: This study investigates the influence of hot deformation parameters on the microstructure evolution and deformation behavior of the extruded 2195 Al-Li alloy. The optimized hot deformation conditions lead to continuous dynamic recrystallization and microstructure refinement. The presence of large second phases and liquid-like grain boundaries in the extruded plate results in a lower deformation activation energy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Sumit Ghosh et al.
Summary: The present study designed a new biomaterial Ti-14Cr alloy for biomedical applications and investigated its manufacturing process through hot deformation. A processing map was constructed to evaluate the hot workability and deformation mechanisms of the alloy at different temperature and strain rate ranges. The study identified the optimal parameters for hot deformation and established a mathematical relation to elucidate the influence of true strain on material constants. The research provides important insights for optimizing the hot deformation parameters and controlling the grain structure of the alloy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Review
Materials Science, Multidisciplinary
Tianli Zhao et al.
Summary: Pure Ti, as a component layer of layered composites, exhibits excellent properties such as high specific strength, low density, low elastic modulus, high-temperature corrosion resistance, and excellent biocompatibility. It shows good flow behavior and recrystallization characteristics during hot deformation studies.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Proceedings Paper
Electrochemistry
A. Essa et al.
Summary: A new forming technology called Incremental Shape Rolling (ISR) is introduced in this study for manufacturing complex components from High Strength Steel (HSS). Compared to the existing Flexible Roll Forming (FRF) process, ISR can significantly reduce the issue of flange wrinkling, expanding its application in the automotive industry.
INTERNATIONAL DEEP-DRAWING RESEARCH GROUP CONFERENCE (IDDRG 2022)
(2022)
Article
Engineering, Manufacturing
Kelin Chen et al.
Summary: This paper investigates the phenomenon of flange wrinkling in deep-drawing process and explores it through experiments and numerical simulations. By establishing a reduced-order model and a finite element model, the flange wrinkling of AA1100-O sheet is successfully predicted, and the accuracy of the reduced-order model in fast prediction of wrinkling is verified.
JOURNAL OF MANUFACTURING AND MATERIALS PROCESSING
(2022)
Article
Mechanics
Farhad Sabri et al.
Summary: This article investigates the wrinkling behavior of laminated orthotropic composite panels under in-plane shear deformation using nonlinear finite element analysis. The study focuses on the development of shear-induced compressive stresses and their effects, showing the evolution of wrinkles through static analysis, eigenvalue analysis, and nonlinear post-buckling analysis. The model predictions reveal sudden shifts in wrinkling patterns near fixed and free boundaries of the panels at a given critical load.
Article
Materials Science, Multidisciplinary
Arvind K. Agrawal et al.
Summary: The present study evaluated the formability of friction stir processed AA6063-T6 tubes during end forming. Different plunge depths of FSP were investigated, with the 2.95mm plunge depth showing significant improvements in flow strength, ductility, and strain hardening exponent. While FSP tubes have the potential to replace raw tubes due to their lower forming load requirements, instabilities during end forming may restrict their applications in certain situations.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Engineering, Mechanical
Qilong Jia et al.
Summary: This paper introduces an automatic finite element simulation scheme for investigating high geometric nonlinearity and the difference between linear and nonlinear buckling in composite thin-walled lenticular tubes (CTLTs). It identifies key factors affecting the bending stiffness anisotropy of CTLTs and provides the first quantitative comparison between triangular rollable and collapsible (TRAC) booms and CTLTs in terms of bending performance. The study shows that a carefully selected optimal CTLT from the design space can exhibit comparable or even better performance than a TRAC boom, which is important for both academic research and engineering applications.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Materials Science, Multidisciplinary
Abdul Malik et al.
Summary: The study investigated the superplasticity of fine-grained extruded ZK61 magnesium alloy at elevated temperatures, showing high elongation to fracture and a governing deformation mechanism of intra-granular slip.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Industrial
Heng Li et al.
Summary: This study investigated the wrinkling instability of thin-walled parts forming under different loading conditions, finding that wrinkling is more prone to occur under tension-compression stress state, and processes without normal constraints exhibit more severe wrinkling. The effects of material parameters on wrinkling are inconsistent in different processes, with the degree of normal constraint impacting the influence of material properties. By combining geometric and material parameters, key issues affecting wrinkling behavior have been elucidated, providing a foundation for further study.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Review
Computer Science, Interdisciplinary Applications
Carlos A. Felippa et al.
Summary: This article presents and compares several methods for obtaining accurate Timoshenko beam finite elements. While examining linear elastostatics and linearized prebuckling stability analysis, it also investigates the possibility of deriving accurate elements with simpler assumptions. The findings show that by introducing modified functionals, this goal can be achieved, and the relationship between these methods and new techniques is also explored.
ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING
(2021)
Article
Engineering, Mechanical
K. Seshacharyulu et al.
Summary: The study investigated the deformation and formability characteristics of DP 590 steel at high temperature, with a focus on theoretical uniaxial flow stress prediction and experimental determination of formability behavior. The KHL model and Barlat 1989 yield function showed better prediction ability, and the forming test temperature significantly affected the formability behavior of the alloy. Overall, the combination of KHL model with Barlat 1989 yield function provided the best predictability for all forming test temperatures.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
Mi Wang et al.
Summary: Weakly nonlinear analysis was conducted for localized necking of a hyperelastic solid cylinder under axial stretching based on the exact theory of nonlinear elasticity. Results showed that the infinite-length approximation is accurate even for cylinders with very moderate length/diameter ratios, while the analysis based on finite length is only valid for very stubby cylinders and for axial force much closer to its bifurcation value.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2021)
Article
Engineering, Mechanical
Hyuk Jong Bong et al.
Summary: The study predicts FLDs of ultra-thin FSS sheets using a combination of CPFE approach and MK model, emphasizing the significant impact of surface roughness on sheet formability. By modifying the MK model to address surface roughening effect, the study highlights the importance of surface roughening, particularly in thinner sheets, for accurate experimental results.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Engineering, Mechanical
Talal Salem et al.
Summary: Research on bilaterally constrained FGM beams with programmable material functions was conducted, using 3D printing techniques and theoretical and numerical models to investigate postbuckling response. It was found that optimizing material functions can control structural instability, allowing for guided design in various applications.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Construction & Building Technology
De-Cheng Feng et al.
Summary: The plastic hinge length is a key parameter in the inelastic response of reinforced concrete columns to combined axial and flexural loading. A novel data-driven model based on the AdaBoost algorithm is proposed to predict the plastic hinge length, showing considerably higher prediction accuracy compared to existing methods. Numerical experiments demonstrate that using the predicted plastic hinge length in force-based beam-column models closely resembles laboratory experiments.
JOURNAL OF STRUCTURAL ENGINEERING
(2021)
Article
Engineering, Civil
J. A. Lopez-Fernandez et al.
Summary: This work presents an experimental analysis of formability and failure within the forming limit diagram of stretch flanges of AA2024-T3 performed by single point incremental forming, focusing on a wide range of process parameters.Results indicate that the triaxiality space might be the most appropriated space for analysing the stretch flanging process by SPIF.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Civil
Yi Shuai et al.
Summary: This study presents a new strain-based evaluation method for predicting the buckling failure of corroded pipelines under bending loads. The critical compressive strain capacity of a corroded pipeline is primarily affected by the depth and width of the corrosion, while the effect of the corrosion length is relatively insignificant. The proposed novel strain-based evaluation method is effective and applicable for assessing the buckling resistance of corroded pipelines.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Civil
Danfeng Zheng et al.
Summary: This paper investigates the energy absorption performance of multi-cell tubes considering the influence of axial constrain in bending process. Results show that multi-cell tubes with rib parallel to the load direction have better energy absorption performance. The influence of thickness and cross-section size on energy absorption performance is also discussed.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Civil
Haoxing Tang et al.
Summary: This study proposes a new method for examining the wrinkling properties of sheet metals and establishes a relevant wrinkling model. It is found that the wrinkling tendency in perforated sheets is more sensitive than that in a conventional YBT specimen, allowing for the capture of subtle wrinkling distortions in low ductility materials.
THIN-WALLED STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Xiaoxing Li et al.
Summary: A new method combining the M-K model with Keeler's empirical formula is proposed in this paper to predict the forming limit curve (FLC), simplifying the calculation procedure. Experimental results on two aluminum alloys, AA6016 and AA5182, validate the effectiveness of this proposed method.
Article
Engineering, Manufacturing
Juan Huang et al.
Summary: The study found that increasing the roller feed rate and reducing the thickness of the dual-metal sheet will cause the flange to be more prone to instability and wrinkles, and the theoretical model can provide guidance for selecting process parameters to avoid wrinkling defects.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Engineering, Manufacturing
Zhenye Liang et al.
Summary: This study investigates the cause of flange wrinkling in chain-die forming of AHSS and proposes a method to suppress it by using an M-shaped die design. Finite element models are used to understand the tool-plate interaction, and a three-factor, three-level Design of Experiment scheme is conducted to determine key factors in suppressing the wrinkling. Experiments show that the proposed method successfully eliminates the plastic flange wrinkling.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Materials Science, Multidisciplinary
Y. X. Zhu et al.
Summary: This study investigates the size effect of composite tubes and its relationship with cross-section deformation mechanisms, introducing new research methods and mathematical models. According to the research findings, composite tubes have a best forming zone in the λ-w space.
MATERIALS & DESIGN
(2021)
Article
Nanoscience & Nanotechnology
Kangcai Yu et al.
Summary: The study investigated the PLC bands of AA3104-H19 sheet and found that the inclination of the PLC band and r-value remain constant during tensile testing. The stability of these parameters is a result of texture evolution limitations, leading to a newly proposed method for determining r-value based on PLC bands.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Yubao Wang et al.
Summary: Anisotropic properties of the Al-Mg-Li alloy sheet were systematically studied using uniaxial and cruciform biaxial tension tests. The Yld2000-2d yield function provided a better description of the yield locus, and the modified M-K model successfully predicted the forming limits of the sheet. Results showed good agreement with experimental data.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Engineering, Civil
Peng Jiao et al.
Summary: The experimental results show that the localized axial compression load plays a key role in the buckling behavior of thin-walled cylindrical shells; this work can serve as a benchmark for related research.
THIN-WALLED STRUCTURES
(2021)
Article
Chemistry, Physical
Zbigniew Pozorski et al.
Summary: This paper focuses on the local loss of stability problem in the facing of a sandwich panel, comparing classical solutions for facing instability on homogeneous and isotropic substructures. It discusses the relationships between strain energy components associated with different core deformations and presents a new solution for orthotropic cores consistent with classic solutions for isotropic cores. Numerical examples support the correctness of analytical formulas, and parametric analyses demonstrate the sensitivity of wrinkling stress to changes in core material parameters.
Review
Materials Science, Multidisciplinary
Reza Ghanavati et al.
Summary: Functionally graded materials are an appropriate response to high-performance multi-functional applications, and the introduction of additive manufacturing technology has provided a great opportunity for their further development. Experimental and numerical studies have shown the significance of additive manufacturing in gradient metallic materials, attracting attention from the materials science and engineering field. Important results have been achieved so far, pointing towards the potential for continued research in the future.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Civil
Khadija Mhada et al.
Summary: The work introduces a new 2D Reduced model that considers the coupling between local instabilities and global buckling in sandwich structures. By using a multi-scale approach based on Fourier series and slowly varying coefficients, the model transforms a 2D sandwich model into a simplified version which only evaluates the envelope of instability. The proposed model is validated by comparison with the 2D Complete model and the analytical solution, and the non-linear system is solved using the Asymptotic Numerical Method (ANM).
Article
Engineering, Manufacturing
Yi Yang Tay et al.
INTERNATIONAL JOURNAL OF CRASHWORTHINESS
(2020)
Article
Engineering, Manufacturing
R. Safdarian
INTERNATIONAL JOURNAL OF MATERIAL FORMING
(2020)
Article
Engineering, Mechanical
Siham Mittelstedt et al.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2020)
Article
Nanoscience & Nanotechnology
Abdul Malik et al.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Engineering, Civil
Bing Du et al.
THIN-WALLED STRUCTURES
(2020)
Article
Metallurgy & Metallurgical Engineering
Yu-feng Xia et al.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2020)
Article
Metallurgy & Metallurgical Engineering
Xiao-qiang Li et al.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2020)
Article
Chemistry, Physical
Gaoshen Cai et al.
Article
Materials Science, Multidisciplinary
Wei Zhang et al.
Article
Materials Science, Multidisciplinary
Yubao Wang et al.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2020)
Article
Nanoscience & Nanotechnology
H. R. Jafarian et al.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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