四川大学学报:工程科学版2012,Vol.44Issue(4):12-19,8.
基于Eshelby本征应变自洽法的岩土二元介质本构关系
Constitutive of Binary Medium for Soils Based on Eshelby Eigenstrain Self-consistent Method
摘要
Abstract
Natural clays have their structure caused by inhomogeneity of the cementation. In order to provide theoretical bases for finite element method of structural soils, based on the theoretical framework of breakage mechanics, the weakly form of elastoplastic constitu- tive of binary medium for soils was given by Eshelby eigenstrain self-consistent method with the consideration of the compatibility for strain and the continuity for stress between bonding elements and frictional elements. A typical example showed that mechanical proper- ties of bonding elements and frictional elements, breakage laws of bonding elements, loading histories,loading modes and states of stress have a great effect on the mechanical property of binary medium for soils, and the constitutive relationship could take it into account.关键词
二元介质模型/Eshelby张量/本征应变/自洽法/弹塑性本构关系Key words
binary medium model/Eshelby tensor/eigenstrain/self-consistent method/elastoplastic constitutive分类
土木建筑引用本文复制引用
杨瑞敏,丁建文,吉锋,何仁财..基于Eshelby本征应变自洽法的岩土二元介质本构关系[J].四川大学学报:工程科学版,2012,44(4):12-19,8.基金项目
国家自然科学基金资助项目(51178107 ()
41172240) ()