中南大学学报（自然科学版）2012，Vol.43Issue(6)：2385-2389,5.
考虑层间接触的沥青路面非线性疲劳损伤特性分析
Nonlinear fatigue damage characteristics analysis of asphalt pavement considering interlayer contact
摘要
Abstract
With the ABAQUS of the general finite element software and the secondary development platform, an asphalt pavement numerical model considering the pavement material nonlinear fatigue damage was established to analyze the influence of different contact condition on the damage degree at the bottom of the layer, the horizontal tensile stress at the bottom of the layer, the deflection on the surface of the pavement, and the fatigue life of the pavement structure. The results show that with the increase of the interlayer friction coefficient, the damage degree at the bottom of the base layer increases and the damage degree at the bottom of the sub-base layer decreases, and the two of them approach each other gradually. The horizontal tensile stress at the bottom of the base layer gradually decreases while the horizontal tensile stress at the bottom of the sub-base layer gradually increases. The deflection on the surface of the pavement decreases, the fatigue life of base decreases and the fatigue life of sub-base increases, and the two of them approaches each other gradually. In general, good interlayer contact condition can give full play to the role of various layer and enhance the carrying capacity of the structure.关键词
路面结构/沥青路面/层间状态/损伤力学/有限元Key words
pavement structure/asphalt pavement/interface condition/damage mechanics/finite element分类
交通工程引用本文复制引用
孙志林,黄晓明..考虑层间接触的沥青路面非线性疲劳损伤特性分析[J].中南大学学报（自然科学版）,2012,43(6):2385-2389,5.基金项目
国家自然科学青年基金资助项目(51008038) （51008038）
道路结构与材料交通行业重点实验室(长沙)开放基金资助项目(kfj090203) （长沙）
