Strain rate design in SHPB test

Baojun Pang; Yao Zhu; Bingzheng Gai

doi:10.1117/12.850894

14 April 2010 Strain rate design in SHPB test

Baojun Pang, Yao Zhu, Bingzheng Gai

Proceedings Volume 7522, Fourth International Conference on Experimental Mechanics; 75220Y (2010) https://doi.org/10.1117/12.850894
Event: Fourth International Conference on Experimental Mechanics, 2009, Singapore, Singapore

Abstract

A strain rate calculation formula of split Hopkinson pressure bar (SHPB) test is derived from one-dimensional stress wave propagation theory. According to the test conditions and specimen size, the test strain rate can be calculated by the formula; and the strain rate limitative range of SHPB test is analyzed. 2D numerical simulation SHPB test of a bilinear strain-hardening material was carried out by LS-DYNA, and a series of SHPB tests of AA7055 aluminum alloy at different strain rates were designed by this strain rate calculation formula. The results indicate that this strain rate calculation formula is accurate and reliable, and the formula has some directing significance for SHPB testing program design.

Citation Download Citation

Baojun Pang, Yao Zhu, and Bingzheng Gai "Strain rate design in SHPB test", Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75220Y (14 April 2010); https://doi.org/10.1117/12.850894

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