Topology optimization design of crushed 2D-frames for desired energy absorption history

Claus B. Wittendorf Pedersen

Research output: Contribution to journalJournal articleResearchpeer-review

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 languageEnglish
JournalStructural and Multidisciplinary Optimization
Volume25
Issue number5-6
Pages (from-to)368-382
ISSN1615-147X
DOIs
Publication statusPublished - 2004

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