【摘要】 针对路表小裂纹的实际状况,将小裂纹视为钱币型,建立了含小裂纹的三维力学计算模型。应用断裂力学的基本原理,研究了表面裂纹前缘各点J积分随荷载与裂缝的不同位置、不同加载方式及路面结构参数的变化规律。更多还原

【Abstract】 For the small surface crack in existence on top of the asphalt pavement,the paper established the 3D mechanics computational model including small crack by regarding the shape of the small crack as penny.By making use of fracture mechanics fundamental, the effect of the pavement parameters and the relative locations of the load and crack as well as loading styles on J integral of the front points of surface crack are studied.更多还原