Table of Contents
Journal of Metallurgy
Volume 2016 (2016), Article ID 6178790, 11 pages
http://dx.doi.org/10.1155/2016/6178790
Research Article

Through-Thickness Compression Testing of Commercially Pure (Grade II) Titanium Thin Sheet to Large Strains

Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA 90089, USA

Received 1 July 2016; Accepted 30 August 2016

Academic Editor: Menahem Bamberger

Copyright © 2016 K. K. Smith and M. E. Kassner. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study examined the through-thickness (-direction) compressive stress versus strain behavior of 99.76% commercially pure (grade II) titanium sheet with relatively small grain size. The current study complemented earlier compression studies by examining a very thin (1.60 mm) sheet and deforming the Ti by successive compression tests to relatively large strains. The low aspect ratio, of the compression specimens extracted from the sheet, led to frictional effects that can create high triaxial stresses complicating the uniaxial stress versus strain behavior analysis. Nonetheless, reasonable estimates were made of the through-thickness large-strain behavior of a commercially pure (grade II) thin Ti sheet to relatively large true strains of about 1.0.