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Article
Materials Science, Multidisciplinary
Peng Wang et al.
Summary: The energy absorption potential of conventional thin-walled tubes is limited by long-wavelength folding lobes, resulting in a mean crushing force much lower than their yield strength. Inspired by the glass sponge skeletal structure, a new thin-walled multi-cell tubular structure with modified face-centered cubic (MFCS) cross section is proposed. Finite element simulation and experimental tests confirm that the MFCS structure exhibits shorter wavelength micro-folding lobes, leading to higher energy absorption, greater energy absorption efficiency, and a more stable deformation mode approaching that of an ideal energy absorber. Parameter studies on the geometric coefficient of the MFCS multi-cell tube further reveal its influence on energy absorption performance and deformation pattern. This bionic design achieves exceptional energy absorbing performance and provides guidance for future lightweight structures with unprecedented mechanical properties.
MATERIALS & DESIGN
(2023)
Article
Engineering, Civil
Mirsalman Sarafraz et al.
Summary: This paper investigates the free vibration and buckling analyses of a sandwich plate with an auxetic honeycomb core and laminated face sheets using the sinusoidal shear deformation theory. The effects of various parameters on the critical buckling loads and natural frequencies are examined. The results show that increasing the thickness of the honeycomb core decreases critical buckling loads and affects the natural frequencies.
THIN-WALLED STRUCTURES
(2023)
Review
Mechanics
Hanfeng Yin et al.
Summary: This paper reviews and discusses the research on energy absorption characteristics of lattice structures in recent years. It summarizes the performance evaluation indexes and loading conditions, classifies the lattice structures, introduces their energy absorption properties, fabrication process, and engineering application, and predicts the future research direction. It provides a useful platform for designing energy absorbed lattice structures and offers a basis for developing new excellent energy absorbed lattice structures.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Aerospace
Yu Chen et al.
Summary: This study proposed an improved hexagonal honeycomb structure by replacing the solid junction with a small hollow circle, resulting in a novel honeycomb. Theoretical models based on energy approach were developed to predict the elastic properties of the new honeycomb, and finite element analysis was used to verify the models and investigate the effects of micro geometrical parameters. The results showed that the new honeycomb exhibited a negative Poisson's ratio effect, higher specific Young's modulus and shear modulus compared to the common hexagonal honeycomb. It also demonstrated a more tailored anisotropy. Therefore, the new honeycomb could be an effective substitute for the common hexagonal honeycomb and provide guidance for improved design of auxetic honeycombs.
AEROSPACE SCIENCE AND TECHNOLOGY
(2022)
Article
Mechanics
Mohammad Hossein Zamani et al.
Summary: This paper presents a novel graded design for an auxetic honeycomb sandwich structure, and the mechanical properties are improved through experiments and numerical analysis.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Multidisciplinary
Peng Wang et al.
Summary: The modified body-centered cubic (MBCC) lattice structure, inspired by the deep-sea glass sponge, has been designed and optimized to have better energy absorption capacity compared to conventional structures. Extensive finite element simulations and experimental tests have validated its performance. Results show that the MBCC lattice exhibits higher energy absorption capacity than previous bio-inspired and conventional structures, approaching that of titanium alloy foams.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Aerospace
Tao Wang et al.
Summary: This paper proposes a new design of auxetic honeycomb to enhance mechanical performance. The design combines the arc-shaped wall and the normal double-arrowed auxetic configuration. Through theoretical modeling and experimental validation, it is shown that the proposed design improves both the in-plane modulus and Poisson's ratio compared to existing designs. The study provides an extensive reference for the design and application of mechanical meta-materials.
AEROSPACE SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Y. S. Li et al.
Summary: This paper investigates the thermal buckling and free vibration of a viscoelastic functionally graded sandwich shell with a tunable auxetic honeycomb core. The viscoelastic behavior of the skins and core is modeled using the complex modulus approach and the elastic-viscoelastic correspondence principle. The Poisson's ratio of the auxetic honeycomb core can be adjusted based on an angle parameter. The equations of motion are derived using Hamilton's principle, and an analytical solution for a simply supported shell is obtained using Navier's solution procedure. The effects of geometry parameters, temperature rise, and tunable auxetic honeycomb core parameters are studied.
APPLIED MATHEMATICAL MODELLING
(2022)
Article
Engineering, Civil
Yiyi Zhou et al.
Summary: In this study, drop hammer impact tests and finite element analyses were conducted to investigate the dynamic responses of metallic auxetic honeycombs. The results showed that the auxetic honeycomb specimens had better energy absorption performance, leading to significantly improved energy absorption efficiency.
ENGINEERING STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Yi Zhang et al.
Summary: This study investigates the effects of wave radius, plate thickness, slot percentage, and base material on the mechanical performance of crosswise assembled auxetic chiral honeycombs. The results show that the assembled auxetic chiral honeycombs exhibit lower peak force and high plateau stress compared to the conventional assembled ones. Increasing the wave radius and plate thickness improves energy absorption and specific energy absorption. When the base materials of the vertical and horizontal wave plates are stainless steel and aluminum, respectively, the assembled auxetic chiral honeycombs demonstrate desirable energy absorption, specific energy absorption, and auxetic behavior.
MATERIALS & DESIGN
(2022)
Article
Engineering, Civil
Huan Lu et al.
Summary: This paper investigates a negative Poisson's ratio (NPR) mechanical metamaterial called star-circle honeycomb (SCH), which exhibits enhanced stiffness compared to the classical star-shaped honeycomb (SH). A theoretical model is built and validated by finite element method (FEM) to calculate the effective elastic properties of SCH. The results show that SCH has significantly enhanced elastic modulus and the elastic properties can be adjusted by selecting parameters. The study provides new design ideas for improving the stiffness and selecting the optimal loading direction of metamaterials.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Civil
Zichen Yan et al.
Summary: This study investigates the blast response of HSPs developed using auxetic hexagonal honeycomb cores through experimental and numerical analysis. Results show that employing auxetic honeycomb cores can significantly enhance the blast resistance of HSPs, as confirmed by both experimental and numerical studies.
ENGINEERING STRUCTURES
(2022)
Article
Mechanics
Yujie Shao et al.
Summary: The compressive properties and energy dissipation characteristics of positive gradient auxetic honeycomb (PGAH) and negative gradient auxetic honeycomb (NGAH) were investigated, with NGAH showing superior energy dissipation. This suggests that NGAH is an ideal energy-absorbing structure.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Aerospace
Lulu Wei et al.
Summary: This study investigates the deformation behavior of star honeycombs under in-plane compression through experiments and numerical simulations. The results show that adjusting micro and macro geometric parameters can significantly enhance deformation stability and energy absorption capacity. The theoretical model established shows good agreement with experimental results, and improved star honeycomb structures exhibit better performance.
AEROSPACE SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Shuai Chen et al.
Summary: This paper presents a novel GNS honeycomb structure and investigates its energy absorption performance through experiments and simulations, revealing the influence of structural parameters on energy absorption. The study shows that the novel GNS honeycomb has better repeatability, vibration control, and cushion performance compared to the NNS honeycomb, thus verifying its potential in the field of energy absorption.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Su Wang et al.
Summary: The study demonstrates the feasibility and promise of using honeycomb structures in the design of biomimetic bone scaffolds, which matched human bone's elastic modulus and exhibited higher yield strength. Additionally, the permeability of the scaffolds is similar to that of cancellous bone, facilitating cell growth and bone tissue regeneration.
MATERIALS & DESIGN
(2021)
Article
Engineering, Multidisciplinary
Pawel Baranowski et al.
DEFENCE TECHNOLOGY
(2020)
Article
Engineering, Civil
Mahsa Karimiasl et al.
THIN-WALLED STRUCTURES
(2020)
Article
Engineering, Civil
Weidong Liu et al.
ENGINEERING STRUCTURES
(2020)
Article
Mechanics
Xin Wu et al.
COMPOSITE STRUCTURES
(2020)
Article
Engineering, Mechanical
Huan Wan et al.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2019)
Article
Engineering, Civil
Han Huang et al.
THIN-WALLED STRUCTURES
(2019)
Article
Mechanics
Weidong Liu et al.
COMPOSITE STRUCTURES
(2019)
Article
Mechanics
Yunyao Jiang et al.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2019)
Article
Engineering, Mechanical
Xiang Li et al.
EXTREME MECHANICS LETTERS
(2019)
Article
Engineering, Civil
L. L. Hu et al.
THIN-WALLED STRUCTURES
(2018)
Review
Chemistry, Physical
Ulrike G. K. Wegst et al.
