Critical stress criteria for interfacial cavitation in MMCs
Journal Article
·
· Acta Metallurgica et Materialia
- Dept. of Materials Science and Metallurgy, Cambridge (United Kingdom)
Density measurements and microstructural examinations have been used to follow the formation, growth and coalescence of cavities during tensile loading of metal matrix composites (MMCs). Finite element modeling has been used to predict the stress states around reinforcements of various shapes. The positions of peak hydrostatic and normal stress components at the interface have been compared with the microstructural sites where voids were found to form experimentally in aluminum reinforced with alumina particles or fibers. It is concluded that cavities form when a critical hydrostatic stress is reached.
- OSTI ID:
- 55356
- Journal Information:
- Acta Metallurgica et Materialia, Vol. 43, Issue 5; Other Information: PBD: May 1995
- Country of Publication:
- United States
- Language:
- English
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