The influence of particle size and particle fracture on the elastic/plastic deformation of metal matrix composites
- Univ. of California, Santa Barbara, CA (United States)
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.
- OSTI ID:
- 389829
- Journal Information:
- Acta Materialia, Journal Name: Acta Materialia Journal Issue: 9 Vol. 44; ISSN 1359-6454; ISSN ACMAFD
- Country of Publication:
- United States
- Language:
- English
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