江苏大学学报（自然科学版）2017，Vol.38Issue(1)：103-108,6.DOI:10.3969/j.issn.1671-7775.2017.01.018
不同结构沥青混合料反射裂缝数值模拟与比较
Numerical simulation and comparison of reflective cracking in different structures of asphalt mixture
摘要
Abstract
In order to get the development of reflective cracking in different structures of asphalt mixture, the extended finite element was used to realize numerical simulation of three typical structures of suspension-dense,framework-dense and void-skeleton.The bottom-up process of cracking in asphalt mixture was obtained,while the anti-reflective properties of four typical crack asphalt materials of AC, ATB,SMA and LSPM were analyzed.The propagation paths of crack and the mechanical responses at different crack extension stages in three structures were compared.The results show that the more obvious the skeleton structure of asphalt mixture is,the shorter the crack mouth opening displacement and the crack length are,and the lower the maximum principle of the last period is.The skeleton structure can effectively reduce the reflective cracking and hinder crack development.关键词
典型沥青材料/沥青混合料结构/反射裂缝/数值模拟/扩展有限元Key words
typical asphalt material/asphalt mixture structure/reflective cracking/numerical simulation/XFEM分类
交通工程引用本文复制引用
曹青青,黄晓明,刘修宇,刘琬辰..不同结构沥青混合料反射裂缝数值模拟与比较[J].江苏大学学报（自然科学版）,2017,38(1):103-108,6.基金项目
国家自然科学基金资助项目 （）
