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- Title
Finite-element modeling of the particle clustering effect in a powder-metallurgy-processed ceramic-particle-reinforced metal matrix composite on its mechanical properties.
- Authors
Lee, W.; Kim, Y.; Kang, N.; Park, I.; Park, Y.
- Abstract
new numerical method is proposed to predict the effect of particle clustering on grain boundaries in a ceramic- particle-reinforced metal matrix composite on its mechanical properties, and micromechanical finite-element simulation of stress-strain responses in composites with random and clustered arrangements of ceramic particles are carried out. A particular material modeled and analyzed is a TiC-particle-reinforced Al matrix composite processed by powder metallurgy. A representative volume element of a composite microstructure with 5 vol.% TiC is reconstructed based on the tetrakaidecahedral grain boundary structure by using a modified random sequential adsorption. The model proposed in this study accurately represents the stress concentrations and particle-particle interactions during deformation of the powder-metallurgy-processed composite. A comparison with the random-arrangement model shows that the present numerical approach is more accurate in simulating the behavior of the composite material.
- Subjects
FINITE element method; MICROCLUSTERS; POWDER metallurgy; CERAMIC materials; METALLIC composites; MECHANICAL behavior of materials; CRYSTAL grain boundaries; TITANIUM carbide; STRAINS &; stresses (Mechanics)
- Publication
Mechanics of Composite Materials, 2011, Vol 46, Issue 6, p639
- ISSN
0191-5665
- Publication type
Article
- DOI
10.1007/s11029-011-9177-y