摘要
基于线弹性断裂力学,采用平面应变有限单元法,应用MSC .NASTRANY有限元软件对含有裂缝的半刚性基层沥青混凝土路面在温度荷载作用下的应力状况进行了初步分析,得到了不同参数情形下的裂尖应力强度因子,研究结果对沥青路面结构设计具有一定的参考价值。
Based upon elastic fracture mechanics, utilizing plain strain finite element method and MSC.NASTRANY software primary analysis is carried out for the semi-rigid base asphalt pavement with cracks under temperature load. Stress intensity factors of crack tip with various parameters are obtained, which have a certain reference value for structure design of asphalt pavement.
出处
《山西建筑》
2005年第9期40-41,共2页
Shanxi Architecture
关键词
反射裂缝
面层底拉应力
有限元法
reflection crack, tensile stress under surface course, finite-element method
