The effect of radial inertia on brittle samples during the split Hopkinson pressure bar test

被引:129
作者
Forrestal, M. J.
Wright, T. W.
Chen, W.
机构
[1] Purdue Univ, Sch Aero Astro, W Lafayette, IN 47907 USA
[2] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA
[3] Sandia Natl Labs, Albuquerque, NM 87185 USA
[4] USA, Res Lab, AMSRL WM, Aberdeen Proving Ground, MD 21005 USA
关键词
Hopkinson bar; sample radial inertia; brittle materials; large diameter samples;
D O I
10.1016/j.ijimpeng.2005.12.001
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
For a valid split Hopkinson pressure bar (SHPB) or Kolsky compression bar experiment, the sample should be in dynamic stress equilibrium over most of the test duration. In this study, we investigate the effect of radial inertia on elastic samples during a valid SHPB test. We present closed-form equations for the three additional stress components induced by radial inertia for incompressible and compressible, linear elastic samples. These equations should assist in the early experimental designs. As the experiments proceed and more is learned about the sample response, numerical analysis can be used to obtain a more refined account of the sample response and dynamic material strength. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:405 / 411
页数:7
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