Table of Contents
Textures and Microstructures
Volume 23, Issue 4, Pages 257-263
http://dx.doi.org/10.1155/TSM.23.257

Effect of Crystal Rotation on Limit Strains of Textured Materials Under Equi-Biaxial Tension

Department of Manufacturing Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong

Received 30 March 1995

Copyright © 1995 Hindawi Publishing Corporation. 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

In this paper, a numerical procedure has been proposed to predict limit strains of textured sheets under equi-biaxial tension by means of the MK model and taking into account of crystal rotation. Limit strains have been predicted for three common crystallographic orientations and an annealed aluminium sheet. The effect of crystal rotation on limit strains was shown to be significant. However, no general trend of the effect has been observed. It is argued that the effect is quite complicated and dependent on various factors such as the initial orientation or texture, groove orientation and the initial inhomogeneous factor. The incorporation of texture change in the analysis of sheet metal forming was found essential.