沥青混合料粘弹性参数的测定及其在本构模型中的应用  

Test of Viscoelastic Parameters of Bituminous Mixture and Its Application in the Constitutive Model

作　　者：吕松涛[1] 田小革[1] 郑健龙[1] 

机构地区：[1]长沙理工大学,湖南长沙410076

出　　处：《长沙交通学院学报》2005年第1期37-42,共6页Journal of Changsha Communications University

基　　金：国家自然科学基金资助项目(50178012)

摘　　要：沥青混合料粘弹性参数的测定决定本构模型中松弛函数或蠕变函数的确定,基于应力松弛试验,运用粘弹性力学相关理论对沥青混合料的粘弹性参数测定方法进行了分析,提出了该测定方法的数学模型,并用Origin软件进行了计算求解,最后举例说明了其在本构模型中的应用。The viscoelastic parameters of bituminous mixture decide the relaxation function or creep function in the constitutive model. In this paper, the theory of viscoelastic mechanics is employed for the analysis of how to test viscoelastic parameters of bituminous mixture through the test of stress relaxation. A (mathematics) model is given, which was calculated using origin software. Finally, its application in the (constitutive) model is illustrated.

关 键 词：应力松弛试验 沥青混合料 粘弹性 广义Maxwell模型 本构模型 

分 类 号：U416.217[交通运输工程—道路与铁道工程]