Topology optimization for crashworthiness of thin-walled structures under axial impact using hybrid cellular automata

被引:80
作者
Duddeck, Fabian [1 ]
Hunkeler, Stephan [2 ]
Lozano, Pablo [1 ]
Wehrle, Erich [1 ]
Zeng, Duo [1 ]
机构
[1] Tech Univ Munich, Fac Civil Geo & Environm Engn, Chair Computat Mech, Arcisstr 21, D-80333 Munich, Germany
[2] Queen Mary Univ London, Sch Engn & Mat Sci, Mile End Rd, London E1 4NS, England
关键词
Crashworthiness; Topology optimization; Thin-walled structures; Hybrid cellular automata; SHAPE OPTIMIZATION; ENERGY-ABSORPTION;
D O I
10.1007/s00158-016-1445-y
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Although topology optimization is well established in most engineering fields, it is still in its infancy concerning highly non-linear structural applications like vehicular crashworthiness. One of the approaches recently proposed and based on Hybrid Cellular Automata is modified here such that it can be applied for the first time to thin-walled structures. Classical methods based on voxel techniques, i.e., on solid three-dimensional volume elements, cannot derive structures made from thin metal sheets where the main energy absorption mode is related to plastic buckling, folding and failure. Because the main components of car structures are made from such thin-walled beams and panels, a special approach using SFE CONCEPT was developed, which is presented in this paper.
引用
收藏
页码:415 / 428
页数:14
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