A Kolsky tension bar technique using a hollow incident tube

被引：19

作者：

Guzman, O. ^{[2
]}

Frew, D. J. ^{[1
]}

Chen, W. ^{[3
]}

机构：

[1] Dynam Syst & Res Inc, Albuquerque, NM 87110 USA

[2] NASA, Lyndon B Johnson Space Ctr, Houston, TX 77058 USA

[3] Purdue Univ, W Lafayette, IN 47907 USA

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2011年 / 22卷 / 04期

关键词：

Kolsky bar; tension test; pulse shaping; dynamic loading; high strain rate;

D O I：

10.1088/0957-0233/22/4/045703

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Load control of the incident pulse profiles in compression Kolsky bar experiments has been widely used to subject the specimen to optimal testing conditions. Tension Kolsky bars have been used to determine dynamic material behavior since the 1960s with limited capability to shape the loading pulses due to the pulse-generating mechanisms. We developed a modified Kolsky tension bar where a hollow incident tube is used to carry the incident stress waves. The incident tube also acts as a gas gun barrel that houses the striker for impact. The main advantage of this new design is that the striker impacts on an impact cap of the incident tube. Compression pulse shapers can be attached to the impact cap, thus fully utilizing the predictive compression pulse-shaping capability in tension experiments. Using this new testing technique, the dynamic tensile material behavior for Al 6061-T6511 and TRIP 800 (transformation-induced plasticity) steel has been obtained.

引用

页数：9

共 20 条

[1]

[Anonymous], I PHYS C SER

[2]

[Anonymous], 2000, MECH TESTING EVALUAT

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