CaltechAUTHORS
  A Caltech Library Service

A shear-compression specimen for large strain testing

Rittel, D. and Lee, S. and Ravichandran, G. (2002) A shear-compression specimen for large strain testing. Experimental Mechanics, 42 (1). pp. 58-64. ISSN 0014-4851. http://resolver.caltech.edu/CaltechAUTHORS:20150227-154619963

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20150227-154619963

Abstract

A new specimen geometry, the shear-compression specimen (SCS), has been developed for large strain testing of materials. The specimen consists of a cylinder in which two diametrically opposed slots are machined at 45° with respect to the longitudinal axis, thus forming the test gage section. The specimen was analyzed numerically for two representative material models, and various gage geometries. This study shows that the stress (strain) state in the gage, is three-dimensional rather than simple shear as would be commonly assumed. Yet, the dominant deformation mode in the gage section is shear, and the stresses and strains are rather uniform. Simple relations were developed and assessed to relate the equivalent true stress and equivalent true plastic strain to the applied loads and displacements. The specimen was further validated through experiments carried out on OFHC copper, by comparing results obtained with the SCS to those obtained with compression cylinders. The SCS allows to investigate a large range of strain rates, from the quasi-static regime, through intermediate strain rates (1–100 s^(−1)), up to very high strain rates (2×10^4s^(−1) in the present case).


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1177/0018512002042001790 DOIArticle
http://link.springer.com/article/10.1007%2FBF02411052PublisherArticle
Additional Information:© 2002 Springer International Publishing AG. Original manuscript submitted: August 17, 2000. Final manuscript received: September 24, 2001.
Group:GALCIT
Subject Keywords:shear; large strain; testing; shear-compression specimen
Record Number:CaltechAUTHORS:20150227-154619963
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150227-154619963
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55351
Collection:CaltechAUTHORS
Deposited By: Cheryl Gause
Deposited On:03 Mar 2015 00:42
Last Modified:29 Sep 2016 23:17

Repository Staff Only: item control page