Fracture Behavior of Particle Reinforced Metal Matrix Composites

摘要：

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.

关键词： Tungsten alloys in-situ tensile fixed point iteration fracture behavior

作者: Weidong Song Haiyan Liu Jianguo Ning

作者单位: State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 1 School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China

会议类型: 国际会议

会议名称: 第二届多功能材料与结构国际会议

会议地点: 青岛

会议语种:英文

页码: 1487-1490

在线出版日期: 2009-10-09（万方平台首次上网日期，不代表论文的发表时间）