A MODIFIED SPLIT HOPKINSON TORSIONAL BAR IN STUDYING SHEAR LOCALIZATION

被引：14

作者：

XUE, Q

SHEN, LT

BAI, YL

机构：

[1] Laooratory for Nonlinear Mechanics of Continuous Media, Inst. of Mech., Acad. of Sci.

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1995年 / 6卷 / 11期

关键词：

D O I：

10.1088/0957-0233/6/11/002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A modified split Hopkinson torsional bar (SHTB) is introduced to eliminate the effect of the loading reverberation of the standard SHTB on the study of evolution of shear localization. The effect, the cause and the method by which to eliminate loading wave reverberation are carefully analysed and discussed. By means of the modified apparatus, the post-mortem observation of tested specimens can provide data on actual evolution of micro-structure and micro-damage during shear localization. Some test results of shear banding conducted with this apparatus support the use of the modified design. Moreover, the modification makes possible the correlation of evolving micro-structures to the transient shear stress-strain recording.

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收藏

页码：1557 / 1565

页数：9

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