摘要
脆性材料的浅裂纹问题是工程界普遍关注的问题,许多文献的试验表明:脆性材料浅裂纹的断裂韧度低于深裂纹时的断裂韧度,本文通过理论分析和有限元计算,对这一问题进行了讨论。
The problem of brittle materials with sallow cracks is a widely-noticed problem. Many tests show that the fracture toughness of brittle materials with shallow cracks is lower than that with deep cracks. By theory etical analysis and finite clement calculation, this problem is disscussed.
关键词
脆性材料
浅裂纹
断裂韧度
有限元
brittle materials
shallow cracks
fracture toughness
finite cement
deep cracks
