FREE SURFACE VELOCIMETRY CORRECTIONS FOR LOW PRESSURE SHOCKS

被引:0
作者
Reed, B. W. [1 ]
Minich, R. W. [1 ]
Stolken, J. S. [1 ]
Kumar, M. [1 ]
机构
[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA
来源
SHOCK COMPRESSION OF CONDENSED MATTER - 2009, PTS 1 AND 2 | 2009年 / 1195卷
关键词
Shock waves; velocimetry; velocity doubling; SOLIDS; WAVES;
D O I
暂无
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We consider how to interpret measured free surface velocities to estimate what a relatively weak shock (with an elastic-plastic two-wave structure, similar to 5-30 GPa) would have looked like in an infinite sample. Hysteresis and nonlinear wave interactions introduce effects (inexact velocity doubling and the delay, partial reflection, and reverberation of waves) whose magnitudes can be estimated with simple models. We argue, and demonstrate in a simulated test case, that these estimates can eliminate most of the systematic error introduced by the free surface during loading.
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页码:719 / 722
页数:4
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