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Article
Engineering, Mechanical
Soheil Hashemi et al.
Summary: This paper deals with the exact solution of vibration analysis of functionally graded annular plate under elastically restrained boundary conditions and resting on Winkler foundation. The motion equations and boundary conditions are derived using Hamilton's principle, and the effects of various parameters on the frequency parameter are evaluated. The accuracy of the results is validated by comparison with previously published literature.
AUSTRALIAN JOURNAL OF MECHANICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Mohammad Nosratbakhsh et al.
Summary: This research experimentally and numerically investigates the flexural and compressive strength of Kevlar fiber composite sandwich panels with a novel lattice core. Finite element analysis is used to simulate the mechanical behavior of the panels, and the effect of polyurethane foam on the panels' strength and energy absorption capacity is studied.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2023)
Article
Mechanics
C. M. Twinkle et al.
Summary: The buckling and free vibration characteristics of sandwich cylindrical panel with porous FG-GPL core were investigated, and it was found that performance could be improved by properly tailoring the distribution of GPL and porosity. Different in-plane loading methods led to varied responses, and changes in aspect ratio caused noticeable mode shape alterations.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Mechanical
Vahid Pourriahi et al.
Summary: The study presents analytical formulations for predicting the equivalent elastic properties of hexagonal aluminum honeycomb including all geometric parameters. Experimental results show good agreement between high-fidelity and low-fidelity models. The influence of various geometric parameters on the natural frequencies of sandwich beams is also investigated.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2022)
Article
Engineering, Mechanical
Luyao Wang et al.
Summary: This research numerically investigates the vibro-acoustic and sound transmission loss behavior of an aluminum honeycomb core sandwich panel with fabric-reinforced graphite composite face sheets. The study demonstrates the advantages of the fabric-reinforced graphite honeycomb sandwich structure over other types of sandwich structures considered. Different boundary conditions and honeycomb structural geometry properties are also shown to have an impact on the acoustical performance of the FRG panel. The approach provides guidance for evaluating and selecting honeycomb sandwich panels based on their vibratory and acoustic behaviors.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2022)
Article
Engineering, Mechanical
Jin-Shui Yang et al.
Summary: This study investigates the vibration behavior of glass fiber composite multi-layer graded corrugated sandwich panels (MLGCSPs), revealing the significant influences of arrangement modes, graded arrangement, and topologies of the corrugated cores on frequency responses and vibration reduction. The research demonstrates that optimizing the arrangement mode and gradient configuration can simultaneously achieve higher fundamental frequency and lower amplitude of the structures.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2022)
Article
Materials Science, Composites
A. N. Shankar et al.
Summary: This study investigates the dynamic responses of carbon nanotubes (CNT) reinforced composite sandwich shells with multi magnetorheological elastomer (MRE) core, showing a significant influence on the natural frequencies. The study also analyzes the effects of several parameters on the natural frequencies, including the content of CNT, magnetic fields, and support conditions.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Multidisciplinary
Mehdi Gholizadeh Eratbeni et al.
Summary: This research aims to design, manufacture, and determine the vibration characteristics of a composite sandwich panel with lattice cores. Experimental and numerical simulation methods have been used to achieve this goal, and the results show good agreement between the two.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2022)
Article
Mechanics
Soheil Hashemi et al.
Summary: This paper presents the nonlinear free vibration analysis of in-plane bi-directional functionally graded rectangular plates with porosities. The effects of key parameters on the nonlinear frequency are investigated through numerical results, and good agreements are found with published data.
INTERNATIONAL JOURNAL OF APPLIED MECHANICS
(2022)
Article
Chemistry, Multidisciplinary
Tiandong Zhang et al.
Summary: A facile but effective method is proposed to improve high temperature capacitive performance in this paper. It is reported that utilizing an inorganic insulation interlayer can significantly increase the discharge energy density with a high efficiency above 90% at 150 degrees C, which provides great inspiration for developing polymer dielectric films with high capacitive performance under extreme environments.
MATERIALS HORIZONS
(2022)
Article
Geosciences, Multidisciplinary
Zhijie Zhu et al.
Summary: This study analyzes the factors affecting coal burst occurrence from the perspectives of geologic and mining conditions and proposes an evaluation index system for coal burst risk. It establishes a hierarchical model and calculates the weight of each influencing factor to predict coal bursts. Through the fuzzy comprehensive evaluation method, a coal burst prediction model is developed, which effectively simplifies and addresses the complex problem of coal burst prediction and prevention.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Engineering, Multidisciplinary
Mustafa S. Al-Khazraji et al.
Summary: The purpose of this research is to investigate the free vibration response of laminated honeycomb sandwich panels (LHSP) for aerospace applications. The study applies a simplified higher order shear deformation theory (HSDT) to analyze LHSP and explores the effects of honeycomb parameters on the vibration natural frequency (NF) value. The research provides analytical and numerical calculations, as well as parametric studies to examine the influence of different factors.
JOURNAL OF ENGINEERING DESIGN AND TECHNOLOGY
(2022)
Article
Engineering, Aerospace
Chunlei Li et al.
Summary: This paper presents the dispersive behavior and band gap characteristics of a multi-scale periodic composite plate reinforced with graphene platelets (GPLs) and fibers. A semi-analytical approach is proposed for wave analysis, and various parameters are investigated for their effects on wave propagation.
AEROSPACE SCIENCE AND TECHNOLOGY
(2022)
Article
Physics, Applied
Guodong Wei et al.
Summary: This work investigates the phase transition of a highly disordered amorphous VO2 film and finds that its electronic transport behavior is influenced by the film's thickness, showing different thermal sensitivity. The study also introduces the concept of a prototype device with overheating protection capability, providing a unique pathway to understand the metal-insulator transition in strongly correlated electronic systems and its functionality in electronic devices.
APPLIED PHYSICS EXPRESS
(2022)
Article
Mechanics
Mingze Ma et al.
Summary: The fatigue test of composite honeycomb sandwich panels under random vibration load was conducted in this study. The test results showed that the failure mode of the honeycomb sandwich structure under random vibration load was the same as that under constant-amplitude load. Based on the test results and the S-N curve of honeycomb sandwich panel under constant-amplitude load, a method was proposed to predict the fatigue life of composite honeycomb sandwich structures under random vibration load.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Civil
Vinayak Kallannavar et al.
Summary: This paper presents the influence of temperature and moisture on the free vibration characteristics of skew laminated composite sandwich (SLCS) panels. Numerical analysis is conducted to analyze the effects of different parameters on the vibration responses, and further exploration is devoted to studying the combined effect of moisture, temperature, and geometrical parameters on the natural frequency of the skew laminated composite sandwich panels.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2022)
Article
Engineering, Civil
Ankita Gupta et al.
Summary: In this study, the nonlinear free and forced vibration analyses of variable stiffness composite laminated (VSCL) and sandwich shell panels with curvilinear fibers were conducted using a higher-order theory. The structural model considered a third-order shear deformation theory, and geometric nonlinearity was included through von Karman nonlinear strain-displacement relations. The results were compared with existing exact and analytical solutions to validate the model.
THIN-WALLED STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Yong Luo et al.
Summary: In this study, black phosphorus was modified with MXene and polydopamine to improve its structural stability and dispersibility in the matrix. The resulting BP-MXene@PDA nanohybrid was found to enhance the mechanical performance, thermal stability, and flame retardancy of thermoplastic polyurethane elastomer.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Aloka Ranjan Sahu et al.
Journal of Engineering and Applied Science
(2022)
Article
Chemistry, Physical
Fan Shen et al.
Summary: This study investigates the influence of temperature on the output performance of solid-liquid triboelectric nanogenerators (TENGs). The results show that temperature has an inconsistent effect on different TENG materials, with the ion concentration in the solution playing a dominant role in the charge transfer process.
Article
Agricultural Engineering
Zicheng Chen et al.
Summary: In this study, NFC-supported MOF hierarchically porous membranes were successfully synthesized by anchoring HKUST-1 on NFC membrane. The addition of HKUST-1 particles increased the specific surface area and controlled the morphology and position of the particles, resulting in a highly effective formaldehyde adsorption capacity.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Chemistry, Physical
Chuanfu Xin et al.
Summary: This study investigates the influence of different thicknesses of PI interlayers on the electric outputs of TENGs, revealing that the output voltage of TENGs decreases with the increase of PI thickness. Additionally, the study examines the impact of interlayers on the positive electrode of TENGs, finding that the output voltage of TENGs with graphite paper interlayers is higher than those without interlayers. Furthermore, the study explores the output performance of TENGs with both negative and positive interlayers, demonstrating a decline in electric outputs due to the coupling effect of PI and graphite paper interlayers.
Article
Green & Sustainable Science & Technology
Quan Zhang et al.
Summary: The frequency tuning device successfully converts 0.75 Hz excitation into a 12.15 Hz oscillation, 0.68 Hz lower than the resonant frequency of the PEH. This design reduces the dependence of the PEH's performance on external excitation and can significantly improve energy harnessing from extremely low-frequency sources like ocean waves.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Thermodynamics
Zhongjie Li et al.
Summary: This study investigated the influence of different circularly arranged magnets on the output performance of an electromagnetic generator, with the results showing that the alternating magnet arrangement performed the best in terms of power output and charging performance under low-frequency conditions.
Article
Materials Science, Textiles
Fanggang Ning et al.
Summary: This study investigates how to improve the abrasion performance of HMPE yarn by using FG/PU coating, and discusses the influence of yarn tension and abrasion frequency on the performance. Experimental results show that the coating can significantly enhance the abrasion performance of the yarn.
JOURNAL OF ENGINEERED FIBERS AND FABRICS
(2021)
Article
Materials Science, Composites
Himan Khaledi et al.
Summary: The flexural strength of carbon fiber reinforced polymer sandwich panels reinforced with a novel M-shaped lattice core and nano-SiO2 was experimentally determined. The addition of 1 to 3 wt% nano-SiO2 into carbon fibers showed the most desirable effects on enhancing flexural strength, while the use of polyurethane foam and the new M-shaped core structure also improved the performance of the sandwich panels.
POLYMER COMPOSITES
(2021)
Article
Mechanics
Yanchun Zhai et al.
Summary: In this article, thermal buckling and free vibration of Composite Sandwich Curved Panels (CSCP) in a thermal environment are analyzed using Hamilton's principle and Navier method. The study examines the influence of structural parameters on Critical Buckling Temperature (CBT) and presents new insights into thermal buckling and free vibration of CSCP.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Composites
Guangming Yang et al.
Summary: The study demonstrates that a woven grid composed of carbon nanotubes and graphenes can significantly enhance the interlaminar shear properties of carbon fiber reinforced plastics. It improves both mode II interlaminar fracture toughness and interlaminar shear strength, while also sensitively monitoring the delamination process in highly conductive CFRPs.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Mathematics, Applied
Soheil Hashemi et al.
Summary: This paper investigates the nonlinear vibrations analysis of functionally graded (FG) rectangular plate in contact with fluid using first order shear deformation theory (FSDT) for the first time. The effects of system parameters such as vibration amplitude, fluid density, fluid depth ratio, volume fraction index and aspect ratio on the nonlinear natural frequency of the plate are discussed in detail through the use of von Karman nonlinearity strain-displacement relations and Galerkin procedure.
ADVANCES IN APPLIED MATHEMATICS AND MECHANICS
(2021)
Article
Materials Science, Textiles
Chunfu Sheng et al.
Summary: This study focused on the abrasion failure of Ultra High Molecular Weight Polyethylene Fiber (UHMWPE) due to relative movement between yarns during repeated stretching or bending. The influences of abrading frequency and yarn tension on abrasion life were discussed, and heating failure and crack propagation mechanisms were proposed based on observation and analysis of abrasion fragments and failed yarn morphology, providing insights for UHMWPE product designs and applications.
JOURNAL OF ENGINEERED FIBERS AND FABRICS
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INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
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INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
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Geosciences, Multidisciplinary
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PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2018)
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Hosain Norouzi et al.
CONSTRUCTION AND BUILDING MATERIALS
(2015)
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Jinshui Yang et al.
COMPOSITE STRUCTURES
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Amin Ajdari et al.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
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