Journal Published Online: 01 May 2002
Volume 30, Issue 3

Plastic Instability and Mechanical Anisotropy of Textured Zinc



The influence of the material parameters, strain hardening, and strain-rate hardening on the plastic instability of textured zinc sheets tested in uniaxial tension was investigated. The experimental instability strains are observed to be in accord with those evaluated from the analytical expressions involving the material parameters. The crystallite orientation distribution function obtained from the pole figure data is used in conjunction with a plasticity model to predict the anisotropy parameters (R and P) and subsequently the width strains in longitudinal and transverse zinc sheets. While the experimental R and P values matched well with those predicted for basal slip, the predicted width strains beyond uniform deformation are observed to be higher than the experimental values.

Author Information

Samba Siva Rao, G
Regional Engineering College, Warangal, India
Godavarti, PS
Microlab Inc., Chandler, AZ
Mahmood, ST
Global Nuclear Fuel (GNF, a subsidiary of GE), Sunol, CA
Linga Murty, K
College of Engineering, NC State University, Raleigh, NC
Pages: 11
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Stock #: JTE12307J
ISSN: 0090-3973
DOI: 10.1520/JTE12307J