Energy absorption in splitting metal tubes with polygonal section

ZHANG Tao; WU Ying-you; ZHU Xian-ming; LIU Tu-guang

doi:10.11883/1001-1455(2007)03-0223-07

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ZHANG Tao, WU Ying-you, ZHU Xian-ming, LIU Tu-guang. Energy absorption in splitting metal tubes with polygonal section[J]. Explosion And Shock Waves, 2007, 27(3): 223-229. doi: 10.11883/1001-1455(2007)03-0223-07

Citation:

ZHANG Tao, WU Ying-you, ZHU Xian-ming, LIU Tu-guang. Energy absorption in splitting metal tubes with polygonal section[J]. Explosion And Shock Waves, 2007, 27(3): 223-229. doi: 10.11883/1001-1455(2007)03-0223-07

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Energy absorption in splitting metal tubes with polygonal section

doi: 10.11883/1001-1455(2007)03-0223-07

1.
Huazhong University of Science and Technology, Wuhan 430074, Hubei, China;
2.
701 Institute, Shipbuilding Research and Design Center of China, Wuhan 430064, Hubei, China

Publish Date: 2007-05-25

Abstract

Abstract

An investigation into the energy absorption behaviors of axially splitting thin-walled metal tubes with polygonal sections was carried out. Curl radius and crushing forces were theoretically calculated for the system under quasi-static load. Numerical solution of the energy dissipating system was obtained by LS-DYNA finite element method and compared with the theoretical results.Influences of die semi-angle, wall thickness and edge number on energy absorption of the structure were discussed by analyzing tearing energy, plastic deformation energy and frictional energy.
- theoretical mechanics,
- energy absorption,
- finite element method,
- thin-walled tube with polygonal section,
- splitting