Crashworthiness design of density-graded cellular metals
Open Access
- 1 January 2013
- journal article
- research article
- Published by Elsevier BV in Theoretical and Applied Mechanics Letters
- Vol. 3 (3), 031001
- https://doi.org/10.1063/2.1303101
Abstract
Crashworthiness of cellular metals with a linear density gradient was analyzed by using cell-based finite element models and shock models. Mechanisms of energy absorption and deformation of graded cellular metals were explored by shock wave propagation analysis. Results show that a positive density gradient is a good choice for protecting the impacting object because it can meet the crashworthiness requirements of high energy absorption, stable impact resistance and low peak stress.Keywords
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