Finally, by using the two collinear crack model and a single crack model, a new fracture criterion for brittle materials under compression was developed based on the traditional fracture criterion.

• 当只有两个裂纹或一个裂纹存在时，给出了准确的应力强度因子解析解。最后依据共线双裂纹模型和单裂纹模型及传统的裂纹断裂准则，建立了脆性材料在压缩载荷作用下的断裂破毁准则。