Compressive and tensile behaviours of 3D hybrid auxetic-honeycomb lattice structures

International Journal of Mechanical Sciences, Год журнала: 2023, Номер 263, С. 108767 - 108767

Опубликована: Сен. 17, 2023

Lattice structures have the potential for application in tensile conditions. However, limited studies addressed behaviours of such and compared them with their compressive behaviours. In this paper, re-entrant structure as foundation was selected to develop new 3D hybrid auxetic honeycomb lattice structures, each characterized by a unique unit cell configuration that features interconnected centre honeycomb, differentiating it from 2D structures. A series uniaxial quasi-static tests, followed simulations were conducted on these investigate compare energy absorption characteristics. The results show there significant differences between terms mechanical under tension compression. Especially, smallest value load 86% higher than largest load. stiffnesses loading about 84–122 times those identical corresponding when they compressed. Meanwhile, progressive stretching, buckling collapse mechanisms observed exhibited excellent absorptions traditional basic structure. outer frame had direct influence Poisson's ratio. work indicates stiffness can be enhanced embedding umbrella shaped elements.

Язык: Английский

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Impact resistance of assembled plate-lattice auxetic structures

Composite Structures, Год журнала: 2024, Номер 338, С. 118132 - 118132

Опубликована: Апрель 15, 2024

Язык: Английский

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Recent Advances of Auxetic Metamaterials in Smart Materials and Structural Systems

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 26, 2025

Abstract Auxetic metamaterials refer to materials and structures with extraordinary deformation, i.e., transverse expansion (contraction) under uniaxial tension (compression). In recent decades, a very wide range of innovative functional performance has been discovered stemming from this behavior. This desirable exhibition adaptivity, programmability, functionality provides great potential in soft intelligent systems. However, thus far, the mainstream research on auxetic focused subjective design, monotonic mechanical properties, passive tunability. review thorough overview classical properties applications, primary objective proposing new roadmap auxetics for advances interdisciplinary field. The fundamental works are categorized different configurations mechanisms. particular, integration shape morphing, actuation, sensing, multiphysical response, inverse design is reviewed detail. To accelerate development smart structural systems, applications generalized into robotics (outside body), human–machine interaction (surrounding healthcare devices (inside body). Finally, several significant topics emphasized theory, material choice, manufacturing technique, applications.

Язык: Английский

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Elastically anisotropic architected metamaterials with enhanced energy absorption

Thin-Walled Structures, Год журнала: 2023, Номер 192, С. 111115 - 111115

Опубликована: Авг. 26, 2023

Язык: Английский

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Multi-objective optimization and theoretical analysis of re-entrant structure with enhanced mechanical properties

Thin-Walled Structures, Год журнала: 2024, Номер 199, С. 111791 - 111791

Опубликована: Март 11, 2024

Язык: Английский

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Excellent mechanical properties of a novel double-diagonal reinforced mechanical metamaterial with tunable Poisson’s ratios inspired by deep-sea glass sponges

Materials & Design, Год журнала: 2025, Номер unknown, С. 113628 - 113628

Опубликована: Янв. 1, 2025

Язык: Английский

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Hybrid honeycombs with re-entrant auxetic and face-centered cubic cells: Design and mechanical characteristics

Engineering Structures, Год журнала: 2025, Номер 328, С. 119731 - 119731

Опубликована: Янв. 25, 2025

Язык: Английский

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A novel auxetic metamaterial based on SSH with unique enhanced load-bearing capacity and NPR effect

Mechanics of Advanced Materials and Structures, Год журнала: 2025, Номер unknown, С. 1 - 23

Опубликована: Фев. 28, 2025

Язык: Английский

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Multifunctional auxetic re-entrant metastructure for low-frequency broadband sound absorption and energy absorption

Thin-Walled Structures, Год журнала: 2025, Номер unknown, С. 113206 - 113206

Опубликована: Март 1, 2025

Язык: Английский

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Dynamic responses and energy absorption characteristics of windmill-shaped auxetic structure under impact loading

Structures, Год журнала: 2025, Номер 75, С. 108670 - 108670

Опубликована: Март 18, 2025

Язык: Английский

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