| Issue |
Mechanics & Industry
Volume 24, 2023
High fidelity models for control and optimization
|
|
|---|---|---|
| Article Number | 43 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/meca/2023040 | |
| Published online | 18 December 2023 | |
Research Article
On the response of re-entrant auxetic structure under dynamic crushing
1
LaMé, Univ. Orléans, Univ. Tours,
INSA CVL 63 av de Lattre de Tassigny,
18020
Bourges, France
2
CEDREM, ECOPARC Domaine de Villemorant
41210
Neung-sur-Beuvron, France
3
LAMIH UMR CNRS 8201, Université Polytechnique Hauts-de-France Campus Mont-Houy,
59313
Valenciennes Cedex 9, France
* e-mail: adeline.petit@etu.univ-orleans.fr
Received:
14
February
2023
Accepted:
13
November
2023
The present work focuses on the dynamic crushing response of 2D re-entrant auxetic honeycomb. The aim of this work is to propose analytic formulations to predict the crushing strength of the considered structure by including design parameters (specific geometrical ratios and/or material properties). The model for dynamic impact is based on shock waves propagation analogy in a rigid, perfectly plastic, locking (R-P-P-L) material model. The formulations depend on the geometric and the material characteristics of the auxetic but also on the impact velocity. Finite Element simulations of the impact of a plate on an auxetic structure were carried out using the RADIOSS® explicit solver. The impact velocities varies from 35 m/s to 200 m/s. The numerical simulations presented in this study show good accordance between analytical and Finite Element results.
Key words: Auxetic structure / impact / finite element model / explicit simulation / analytical solution
© A. Petit et al., Published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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