The influence of particle size and particle fracture on the elastic/plastic deformation of metal matrix composites

A methodology is introduced for calculating the deformation response of particulate reinforced metal matrix composites in terms of an effective medium approach combined with the essential features of dislocation plasticity. By comparing the simulated and experimental stress-strain curves for two set...

Full description

Saved in:
Bibliographic Details
Published in:Acta materialia 1996-09, Vol.44 (9), p.3801-3811
Main Authors: Nan, C.-W., Clarke, D.R.
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: structure, mechanical and thermal properties
Deformation and plasticity (including yield, ductility, and superplasticity)
Exact sciences and technology
Mechanical and acoustical properties of condensed matter
Mechanical properties of solids
Metals. Metallurgy
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A methodology is introduced for calculating the deformation response of particulate reinforced metal matrix composites in terms of an effective medium approach combined with the essential features of dislocation plasticity. By comparing the simulated and experimental stress-strain curves for two sets of SiCAl composites, the effects of particle size and size distribution and volume fraction on the deformation response are given. A feature of the methodology is that the effects of particle cracking during deformation can be incorporated quantitatively. When included, the simulations lead to excellent agreement with experiments on the effects of particle cracking on both the overall deformation response and the tension-compression deformation asymmetry.
ISSN:1359-6454
1873-2453
DOI:10.1016/1359-6454(96)00008-0