Large Strain, High Strain Rate Testing of Copper-Reference-Cited by-同舟云学术

Large Strain, High Strain Rate Testing of Copper

Published:1980-10-01 Issue:4 Volume:102 Page:376-381
ISSN:0094-4289
Container-title:Journal of Engineering Materials and Technology
language:en
Short-container-title:

Author:

Lindholm U. S.¹,Nagy A.²,Johnson G. R.³,Hoegfeldt J. M.³

Affiliation:

1. Department of Materials Sciences, Southwest Research Institute, San Antonio, Texas 78284

2. Southwest Research Institute, San Antonio, Texas 78284

3. Honeywell Incorporated, Defense Systems Division, Hopkins, Minn. 55343

Abstract

This paper describes the development of a high-speed torsional testing machine and results obtained on the strain-rate dependent strength of copper at large shear strains. Test techniques and data obtained are intended to be useful in applications such as ballistics and machining. For copper, the results indicate positive strain hardening behavior to very large strains under low rate, isothermal conditions and the transition to adiabatic thermal softening, shear instability and localization (shear banding) at high rates.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/materialstechnology/article-pdf/102/4/376/5788555/376_1.pdf

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