In order to accurately describe the variation of crack section with crack breathing, while considering the computational complexity and model accuracy, the crack closure line method [28]is adopted to model the breathing crack in this paper with an assumption that the crack surface is flat and the crack tip is a straight line.
为了准确描述裂纹截面随裂纹呼吸的变化,同时考虑计算复杂性和模型精度,本文采用裂纹闭合线法 [28] 对呼吸裂纹进行建模,假设裂纹表面为平面,裂纹尖端为直线。
(p3)