Development of novel auxetic-nonauxetic hybrid metamaterial

IF 4.4 2区工程技术 Q1 ENGINEERING, MECHANICAL

Engineering Failure Analysis Pub Date : 2025-03-25 DOI:10.1016/j.engfailanal.2025.109559

Hasan Al-Rifaie , Nima Movahedi , Teik-Cheng Lim

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引用次数: 0

Abstract

Cellular metamaterials with positive PR (non-auxetic) and negative PR (auxetic) have been well covered in literature. However, to author’s knowledge, topologies with zero PR is limited to few studies, although they have higher impact energy absorption potential compared to conventional auxetic and nonauxetic topologies. Hence, the aim of this paper is to propose a new hybrid topology that combines auxetic and non-auxetic nature, achieving near zero PR. An analytical approach was employed to analyze considered geometries. A non-linear computational model was then developed using Abaqus software to investigate their behavior under dynamic impact. The hybrid topologies showed a mix between the X-shaped progressive collapse of the uniform non-auxetic honeycomb and the lateral shrinkage of the uniform auxetic re-entrant. The hybrid topologies outperformed conventional auxetic and nonauxetic topologies with higher Specific Energy Absorption (SEA), showing superior performance when subjected to dynamic impact. The proposed sacrificial hybrid cellular metamaterial can be used in different scales to protect civil and defense vulnerable structures.

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开发新型辅助-非辅助混合超材料

具有正PR（非生长性）和负PR（生长性）的细胞超材料已经在文献中得到了很好的报道。然而，据笔者所知，零PR的拓扑结构虽然比传统的消声和非消声拓扑结构具有更高的冲击能量吸收潜力，但研究较少。因此，本文的目的是提出一种新的混合拓扑结构，结合了互补和非互补的性质，实现接近零的PR。采用分析方法来分析考虑的几何形状。然后利用Abaqus软件建立非线性计算模型来研究它们在动态冲击下的行为。混合拓扑结构表现为均匀非消蚀蜂窝的x形递进崩塌和均匀消蚀回入的侧向收缩的混合。混合拓扑结构具有更高的比能量吸收（SEA），在动态冲击下表现出更好的性能。所提出的牺牲型混合细胞超材料可用于不同尺度的民防易损结构保护。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Engineering Failure Analysis 工程技术-材料科学：表征与测试

CiteScore

7.70

自引率

20.00%

发文量

956

审稿时长

47 days

期刊介绍： Engineering Failure Analysis publishes research papers describing the analysis of engineering failures and related studies. Papers relating to the structure, properties and behaviour of engineering materials are encouraged, particularly those which also involve the detailed application of materials parameters to problems in engineering structures, components and design. In addition to the area of materials engineering, the interacting fields of mechanical, manufacturing, aeronautical, civil, chemical, corrosion and design engineering are considered relevant. Activity should be directed at analysing engineering failures and carrying out research to help reduce the incidences of failures and to extend the operating horizons of engineering materials. Emphasis is placed on the mechanical properties of materials and their behaviour when influenced by structure, process and environment. Metallic, polymeric, ceramic and natural materials are all included and the application of these materials to real engineering situations should be emphasised. The use of a case-study based approach is also encouraged. Engineering Failure Analysis provides essential reference material and critical feedback into the design process thereby contributing to the prevention of engineering failures in the future. All submissions will be subject to peer review from leading experts in the field.