Simulation of a multimaterial model for modified auxetic structures

Engel, Alexander; Jung, Anne

doi:10.14311/app.2023.42.0012

Simulation of a multimaterial model for modified auxetic structures

Publication date

2023-10-12

Document type

Konferenzbeitrag

Author

Engel, Alexander

Jung, Anne

Organisational unit

Schutzsysteme

DOI

10.14311/app.2023.42.0012

URI

https://openhsu.ub.hsu-hh.de/handle/10.24405/22680

Conference

18th Youth Symposium on Experimental Solid Mechanics (YSESM 2023) ; Telč, Czech Republic ; June 11–14, 2023

Publisher

Czech Technical University

Series or journal

Acta Polytechnica = CTU Proceedings

ISSN

2336-5382

Periodical volume

42

First page

12

Last page

16

Peer-reviewed

✅

Part of the university bibliography

✅

Language

English

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.

Description

Licensed under a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/)

Version

Published version

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