Energy Absorption of an Re-entrant Honeycombs with Negative Poissons Ratio
In the present paper, we have investigated a negative Poissons ratio structure with regular re-entrant cell shape to study its structural response under crush by rigid wall. Firstly, we created the geometry of cellular material in HYPERMESH. The developed geometrical model is imported into LS-DYNA. Then we use commercially available nonlinear explicit finite element code LS-DYNA to simulate the NPR material under uniformly distributed load. The deformation modes and energy absorption characteristics of NPR material were analyzed. Numerical results indicate that this NPR material have good ability of energy absorption.
Re-entrant Negative Poissons ratio Energy absorption Honeycombs
Shu Yang Chang Qi Dongming Guo Dong Wang
State Key Laboratory of Structural Analysis for Industrial Equipment, School of Automotive Engineeri Key Laboratory for Precision & Non-traditional Machining of Ministry of Education, Dalian University
国际会议
大连
英文
992-995
2011-10-19（万方平台首次上网日期，不代表论文的发表时间）