Dynamic stress concentration factor of an elastic plate with a hole subjected to negative transverse explosive loading

CAI Zhong-min; XU Wen-ling; LIANH Wei-min

doi:10.11883/1001-1455(2006)05-0452-04

Volume 26 Issue 5

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CAI Zhong-min, XU Wen-ling, LIANH Wei-min. Dynamic stress concentration factor of an elastic plate with a hole subjected to negative transverse explosive loading[J]. Explosion And Shock Waves, 2006, 26(5): 452-455. doi: 10.11883/1001-1455(2006)05-0452-04

Citation:

CAI Zhong-min, XU Wen-ling, LIANH Wei-min. Dynamic stress concentration factor of an elastic plate with a hole subjected to negative transverse explosive loading[J]. Explosion And Shock Waves, 2006, 26(5): 452-455. doi: 10.11883/1001-1455(2006)05-0452-04

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Dynamic stress concentration factor of an elastic plate with a hole subjected to negative transverse explosive loading

doi: 10.11883/1001-1455(2006)05-0452-04

1.
Institute of Applied Mechanics, Taiyuan University of technology, Taiyuan 030024, Shanxi, China;
2.
Infrastructure department, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China

Publish Date: 2006-09-25

Abstract

Abstract

Based on ANSYS 7.0/LS-DYNA, an analysis is performed of the stress response of a simply-supported plate (3 m3 m), with a hole (0.3 m0.3 m), subjected to positive and negative triangularly-distributed pressures. The dynamic stress concentration factor is determined by using time-distributive function of energy density, and the corresponding procedure is provided. It is shown from the result of calculation that the calculation time and the data-collecting time interval have great effects on the factor, but the negative pressure has an insignificant effect on it.