Accession Number : ADA332637
Title : Effects of Texture on the Plastic Anisotropy of Orthorhombic Sheets of Cubic Metals: A Group-Theoretic Analysis
Descriptive Note : Final technical rept. 15 Sep 94-14 Sep 97
Corporate Author : KENTUCKY UNIV LEXINGTON
Personal Author(s) : Man, Chi-Sing
PDF Url : ADA332637
Report Date : 13 NOV 1997
Pagination or Media Count : 18
Abstract : A plastic potential with seven texture coefficients, which shows explicitly how crystallographic texture would affect the plastic flow of sheet metals (e.g., aluminum) in metal-forming processes was developed. Formulae relating plastic strain ratios (r-values) of sheet metals to their texture coefficients, as predicted by this plastic potential, were derived. The derivation of this new plastic potential was based physically on the principle of material frame-indifference and mathematically on the theory of group representations and theory of invariants. The group-theoretic method described herein could be carried further if derivation of a plastic potential with higher texture coefficients should become desirable.
Descriptors : *ANISOTROPY, *TEXTURE, *PLASTICS, *CRYSTALLOGRAPHY, *SHEET METAL, COMPOSITE MATERIALS, STRAIN(MECHANICS), ALLOYS, ALUMINUM, PLASTIC PROPERTIES, PLASTIC FLOW.
Subject Categories : Metallurgy and Metallography
Distribution Statement : APPROVED FOR PUBLIC RELEASE