摘要
本文对岩石与混凝土类脆性材料的强度和断裂机理进行了简要分析。在最大分离位移(MAXSD)屈服准则的基础上,建立了三维复合型裂纹的断裂准则。并与混凝土材料的三维复合裂纹和Ⅰ、Ⅱ型复合裂纹的断裂试验结果进行了比较。
The strength and fracture mechanism of brittle meterials of the like of rock and concrete is studied in this paper. The fracture criterion of three-dimensional combined mode cracks is set up on the basis of yield criterion of the maximum separate displacement (MAXSD) and compared with the fracture experiment results of three-dimensional and Ⅰ, Ⅱ combined mode cracks of the concrete material.
关键词
岩石
混凝土
脆性材料
断裂
裂纹
brittle materials
fracture criteria
fracture toughness
