Numerical simulation the stress uniformity in split Hopkinson pressure bar testing

被引：0
|
作者：
Jin, Hongbin [1 ]
机构：
[1] Shanghai Customs Coll, Dept Econ & Management, Shanghai 201204, Peoples R China
来源：
ADVANCES IN CHEMICAL, MATERIAL AND METALLURGICAL ENGINEERING, PTS 1-5 | 2013年 / 634-638卷
关键词：
Numerical simulation; stress uniformity; split Hopkinson pressure bar; CSPM; HIGH-STRAIN-RATE; SPECIMENS; BEHAVIOR; SYSTEM; RATES;
D O I：
10.4028/www.scientific.net/AMR.634-638.2861
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The assumption of uniform stress in a test specimen is fundamental to SHPB test technique. In the present paper, a numerical simulation of wave propagation in SHPB is performed to validate the assumption. A one-dimensional model based on CSPM is firstly developed. Then the wave propagations in SHPB with various area ratios of bar/specimen are simulated. The results show that the condition of stress uniformity is not satisfied, especially at the beginning of wave propagation. For the large area specimen, the stress tends to be uniform. While for the small area specimen, the non-uniformity of stress is more apparent.
引用
收藏
页码：2861 / 2864
页数：4
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