不同降温速率下沥青路面温度应力仿真分析

ANSYS Based Temperature Stress Simulation of Asphalt Pavement at Different Cooling Rates

本文基于有限元分析软件ANSYS,建立了沥青路面结构的二维模型,对不同初始温度的沥青路面在不同降温速度下产生的温度应力进行了仿真分析,结果表明在90 mm深度内温度应力变化较大,在90～150 mm内温度应力变化较小,此时对结构的影响已可忽略不计,且初始温度越高温度应力越大。

Based on the finite element analysis software ANSYS, two- dimensional model of asphalt pavement structure is established. The paper simulated asphalt pavement temperature stress in different initial temperature and at different cooling rates. The results show that the changes of temperature stress within the depth of 90 mm are large, the changes in 90 mm to 150 mm are little, and the higher the initial temperature, the greater the temperature stress.