沥青混合料疲劳损伤模型参数实验研究

Experimental Study on Fatigue Damage Model Parameter of Asphalt Mixture

首先介绍疲劳累积损伤定律在沥青类材料中的应用,针对不同模型的特点及应用条件,采用Lemaitre疲劳累积损伤模型作为沥青混合料疲劳损伤模型,通过进行疲劳损伤实验设计,获得沥青类材料疲劳损伤特性参数,为计算材料疲劳损伤程度奠定了基础。

The article firstly introduces the application of fatigue accumulated damage law in the asphalt material. Aiming at the characteristics and application conditions of the different models, the fatigue accumulated damage model of Lemaitre as the fatigue damage model of asphalt mixture is used to carry out the experimental design of fatigue damage. The achieved fatigue damage character parameters of asphalt material can lay the foundation for the calculation of fatigue damage degree of materials.