摘要
扩展有限元法是近年来迅速发展的一种新型数值方法,为了深入分析沥青混合料在荷载作用下的破损机理,将该方法引入到沥青路面计算,以沥青混合料劈裂试验为例,利用ABAQUS有限元软件,采用双线性内聚力模型模拟劈裂试验裂纹扩展过程,并将数值模拟结果和试验结果进行了比较分析.结果表明数值计算结果和试验结果吻合很好,扩展有限元法应用于沥青路面结构计算分析是可行的,可供工程技术人员参考.
The extended finite element method is a new type of numerical method of rapid development in recent years.This method is introduced to analyze the damage mechanism of asphalt mixtures.By means of ABAQUS and bilinear cohesive zone model,the whole process of splitting test is simulated.The crack initiation and propagation process is studied.The numerical simulation results and the test results are compared and analyzed.It is shown that the numerical calculation results are in good agreement with test results;the extended finite element method is capable to simulate and analyze asphalt pavement structure.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2011年第6期748-751,共4页
Engineering Journal of Wuhan University
基金
河北省交通科技项目(编号:Y-090210)
关键词
沥青路面
沥青混合料
劈裂试验
扩展有限元法
asphalt pavement
asphalt mixture
splitting test
extended finite element method
