Simulation of a multimaterial model for modified auxetic structures

Alexander Engel, Anne Jung
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引用次数: 0

Abstract

Auxetic structures, which is a term used to describe materials with a negative Poisson’s ratio, show beneficial properties like a low density, a high energy absorption capacity and an increased indentation resistance. This enables applications in many fields, such as aerospace and sports industries. Given their potential, many studies have already been conducted. Previously, the geometry of a selected auxetic re-entrant structure was optimized to maximize its mass-specific energy absorption capacity for ideal usage in lightweight applications. Moreover, a homogeneous material was used, whereas the combination of multiple materials could drastically increase the performance of such structures. Hence, in this study the use of two different materials combined into a modified re-entrant structure is investigated via Finite Element simulation. The Poisson’s ratio could thus be improved, which leads toa more pronounced and longer lasting auxetic effect.
修正结构的多材料模型仿真
辅助结构是一个用来描述具有负泊松比的材料的术语,它显示出诸如低密度、高能量吸收能力和增加的抗压痕等有益特性。这使得在许多领域的应用,如航空航天和体育产业。鉴于它们的潜力,已经进行了许多研究。在此之前,一种选择的辅助重入结构的几何形状进行了优化,以最大限度地提高其质量比能量吸收能力,以实现轻量化应用的理想用途。此外,使用了一种均匀的材料,而多种材料的组合可以大大提高这种结构的性能。因此,在本研究中,通过有限元模拟研究了两种不同材料组合成改进的再入式结构的使用。因此,泊松比可以提高,从而导致更明显和更持久的补充效应。
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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CiteScore
0.40
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