SciTech Connect

Title: Experimental studies of yield phenomena in biaxially loaded metals. [Review]

Experimental studies of yield phenomena in biaxially loaded metals. [Review] Realistic materials properties input represents one of the major limitations in computer stress analysis in the plastic range. Lack of data on the response of many structural materials to multiaxial loading requires modeling plastic behavior. Such models can at best predict the response of a limited class of materials for a limited range of loading. A summary of biaxial plasticity experiments on metals is presented to provide a testing ground for such models and to serve as a reference guide for materials that may be of practical interest. Most of the work has been done on materials assumed to exhibit time-and-pressure-independent plastic flow. Special attention is focused on initial and subsequent yield conditions and stress-strain relations. Some specific examples of material behavior that does not fall within the assumptions of classical plasticity theories are discussed. These include time-dependence as evidenced in creep, cyclic loading and strain-rate effects, pressure dependence, large strain behavior, microstructural changes and failure laws. 15 figures, 277 references.
Authors:
Publication Date:
OSTI Identifier:OSTI ID: 7128705
Report Number(s):LA-UR-76-1413; CONF-761107-1
TRN: 77-004836
DOE Contract Number:W-7405-ENG-36
Resource Type:Conference
Resource Relation:Conference: Annual meeting of the American Society of Mechanical Engineers, New York, NY, USA, 29 Nov 1976
Research Org:Los Alamos Scientific Lab., NM (USA)
Country of Publication:United States
Language:English
Subject: 36 MATERIALS SCIENCE; ALLOYS; PLASTICITY; METALS; BIBLIOGRAPHIES; REVIEWS; DOCUMENT TYPES; ELEMENTS; MECHANICAL PROPERTIES 360103* -- Metals & Alloys-- Mechanical Properties