摘要
采用三维有限元方法计算表面裂缝的应力强度因子,并在此基础上应用Paris公式分析了路面结构参数对自上而下裂缝的疲劳扩展规律与疲劳寿命的影响,给出了路面材料选取与路面结构设计等方面的有关建议。
In this paper, the stress intensity factors of surface cracks are calculated using three-dimension inite element method, based on which, the effects of different parameters of pavement structure on the fatigue propagation rules and fatigue life of top-down cracks are analyzed using Paris law, and some recommendations about pavement material selection and structure design are presented.
出处
《山西建筑》
2010年第35期264-265,共2页
Shanxi Architecture
关键词
沥青路面
三维有限元
应力强度因子
Paris公式
asphah pavement, three-dimension finite element, stress intensity factor, Paris law
