岩土力学2009，Vol.30Issue(12)：3607-3614,8.
泥岩弹塑性损伤本构模型及其参数辨识
Parameter identification of new elastoplastic damage constitutive model for claystone
摘要
Abstract
In order to depict the hardening and softening behaviours of clay, a new elastoplastic damage model with Mohr-Coulomb criterion is presented in the framework of the irreversible thermodynamics and nonlinear continuum mechanics. Furthermore, damage evolution equation is suggested based on the defined damage potential. Based on the developed numerical code, parameters for Boom clay elastoplastic damage model are obtained according to undrained triaxial consolidation tests by back analysis. The numerical simulation under various stress states shows that the proposed model is able to effectively depict the main features of mechanical behaviors of Boom clay.关键词
泥岩/Mohr-Coulomb模型/损伤/本构模型/参数辨识Key words
claystone/ Mohr-Coulomb criterion/ damage/ constitutive model/ parameter identification分类
建筑与水利引用本文复制引用
贾善坡,陈卫忠,于洪丹,李香玲..泥岩弹塑性损伤本构模型及其参数辨识[J].岩土力学,2009,30(12):3607-3614,8.基金项目
国家自然科学基金重大国际合作项目(No. 50720135906) （No. 50720135906）
国家自然科学基金面上项目(No. 40772184) （No. 40772184）
863项目(No.2007AA11Z108)赞助. （No.2007AA11Z108）
