Abstract
The present work deals with topology optimization for obtaining a desired energy absorption history of a crushed structure. The optimized energy absorbing structures are used to improve the crashworthiness of transportation vehicles. The ground structure consists of rectangular 2D-beam elements with plastic hinges. The elements can undergo large rotations, so the analysis accommodates geometric nonlinearities. A quasi-static nonlinear finite element solution is obtained with an implicit backward Euler algorithm, and the analytical sensitivities are computed by the direct differentiation method.
| Original language | English |
|---|---|
| Journal | Structural and Multidisciplinary Optimization |
| Volume | 25 |
| Issue number | 5-6 |
| Pages (from-to) | 368-382 |
| ISSN | 1615-147X |
| DOIs | |
| Publication status | Published - 2004 |