CRITIQUE OF MACRO FLOW/DAMAGE SURFACE REPRESENTATIONS FOR METAL MATRIX COMPOSITES USING MICROMECHANICS

Cliff J. Lissenden, Steve M. Arnold

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Guidance for the formulation of robust, multiaxial, constitutive models for advanced materials is provided by addressing theoretical and experimental issues using micromechanics. The multiaxial response of metal matrix composites, depicted in terms of macro flow/damage surfaces, is predicted at room and elevated temperatures using an analytical micromechanical model that includes viscoplastic matrix response as well as fiber-matrix debonding. Macro flow/damage surfaces (i.e., debonding envelopes, matrix threshold surfaces, macro “yield” surfaces, surfaces of constant inelastic strain rate, and surfaces of constant dissipation rate) are determined for silicon carbide/titanium in three stress spaces. Residual stresses are shown to offset the centers of the flow/damage surfaces from the origin and their shape is significantly altered by debonding. The results indicate which type of flow/damage surfaces should be characterized and what loadings applied to provide the most meaningful experimental data for guiding theoretical model development and verification.

Original languageEnglish (US)
Title of host publicationAerospace and Materials
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages283-309
Number of pages27
ISBN (Electronic)9780791815311
DOIs
StatePublished - 1996
EventASME 1996 International Mechanical Engineering Congress and Exposition, IMECE 1996 - Atlanta, United States
Duration: Nov 17 1996Nov 22 1996

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume1996-I

Conference

ConferenceASME 1996 International Mechanical Engineering Congress and Exposition, IMECE 1996
Country/TerritoryUnited States
CityAtlanta
Period11/17/9611/22/96

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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