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扩展有限元法是近年来迅速发展的一种新型数值方法,本文根据断裂力学理论,利用ABAQUS有限元软件,将该方法用于沥青路面的Top-Down裂纹开裂问题分析,考察了交通荷载、结构参数等因素的影响,通过数值算例验证了该方法在求解沥青路面裂纹扩展问题上的优势。结果表明基于扩展有限元法的计算和分析过程效率高,应用于沥青路面结构裂纹计算分析是可行的,供工程技术人员参考。
The extended finite element method is a new numerical method developed rapidly in recent years. According to the fracture mechanics theory and ABAQUS finite element software, this method is applied to the analysis of Top-Down crack of asphalt pavement. The effects of traffic load, structure Parameters and other factors, numerical examples show the advantages of this method in solving the crack propagation problem of asphalt pavement. The results show that the calculation and analysis process based on the extended finite element method is efficient and applicable to the calculation and analysis of cracks in asphalt pavement structure is feasible for engineering and technical personnel.