Mechanisms of ductile failure in brittle matrix composites with metal reinforcements are investigated using a mechanistic approach to incorporate material anisotropy. Rapid void expansion with increasing remote strain and at nearly constant remote strain (cavitation) is modeled. Fracture energy, total energy absorbed, and cavitation limit is obtained as a function of material anisotropy. It is observed that for initial void volume fraction less than or equal to ${10}^{-4}$ cavitation phenomenon is seen. The critical stress at cavitation is found to increase with decreasing void size until it reaches the cavitation limit. Further, it is observed that the ductile fracture of metal reinforcements in the brittle matrix composite is sensitive to the material anisotropy.

使用机械方法结合材料各向异性研究了具有金属增强材料的脆性基体复合材料的韧性破坏机理。模拟了随着远程应变的增加和几乎恒定的远程应变（空化）而导致的快速空隙膨胀。断裂能，吸收的总能量和空化极限是材料各向异性的函数。可以观察到，初始空隙体积分数小于或等于${10}^{--4}$看到空化现象。发现空化时的临界应力随着空隙尺寸的减小而增加，直到达到空化极限为止。此外，观察到脆性基质复合材料中金属增强材料的延性断裂对材料各向异性敏感。