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Models for the Strength of Ductile Matrix Composites

Published online by Cambridge University Press:  21 February 2011

Gang Bao ,
Francesco Genna ,
John W. Hutchinson  and
Robert M. Mcmeeking
Gang Bao
Affiliation:
Department of Materials, University of California, Santa Barbara, CA 93106
Francesco Genna
Affiliation:
Departimento di Ingegneria Strutturale, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
John W. Hutchinson
Affiliation:
Division of Applied Sciences, Harvard University, Cambridge, MA 02138
Robert M. Mcmeeking
Affiliation:
Department of Materials, University of California, Santa Barbara, CA 93106
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Abstract

Numerical results have been obtained for the plastic flow of a metal matrix composite material reinforced by rigid spheres, cylinders and ellipsoids. Aligned geometries have been investigated and 2-d and 3-d cellular calculations carried out using the finite element method. The relative effect of particulates, disks and needles used as reinforcements are compared. Needles in aligned arrangements are found to produce the greatest strengthening. Additional results are presented from plane strain slip line solutions. Such results provide insight into the relative importance to strength of the reinforcement end regions versus the narrow side ligaments.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 194: Symposium R – Intermetallic Matrix Composites I , 1990 , 3
Copyright
Copyright © Materials Research Society 1990

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References

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