Fracture Behavior of Particle Reinforced Metal Matrix Composites
SEM experimental system was employed to investigate the fracture behavior of particle reinforced metal matrix composites (91%wt tungsten alloys) by in-situ experiments. The fracture patterns of tungsten alloys under tensile loading were examined. Multi-particle unit cell models containing some important microstructure characteristics of tungsten alloys were established. By using fixed point iteration method, the displacement constraint conditions were applied on the multi-particle unit cell and the mechanical properties of tungsten alloys under tensile loadings were simulated. Comparison of the experimental results and the numerical predictions shows a good agreement between them, verifying the rationality of the FE models using the fixed point iteration method.
Yansheng Yin and Xin Wang
W. D. Song et al., "Fracture Behavior of Particle Reinforced Metal Matrix Composites", Advanced Materials Research, Vols. 79-82, pp. 1487-1490, 2009