Topology optimization design of crushed 2D-frames for desired energy absorption history
Topology optimization design of crushed 2D-frames for desired energy absorption history
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DOI：
10.1007/s00158-003-0282-y
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发表时间：
2003-12
影响因子：
3.9
通讯作者：
C. Pedersen
中科院分区：
文献类型：
--
作者：
C. Pedersen
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.
