岩土力学2012，Vol.33Issue(9)：2803-2810,8.
结构性黄土二元介质本构模型在局部化剪切带中的应用
Application of structural loess binary-medium model to localization shear band
摘要
Abstract
Based on the theory of breakage mechanics, the structural loess is conceptualized as binary-medium model consisting of bonding brick and frictional band. Shear band is structural loess' breakage, localization band sprout and development is dynamic process that bonding brick is translating into frictional band. Applying the double parameter breakage ratio binary-medium model of structural loess, the process of structural loess localization band sprouting and expanding is simulated with the numerical simulations method, the localization shear band shape, speciality and law under different disfigurement project are studied; it is found that the strain localization on a shear band of structural soil at originally is some sets discontinuous little local breakage area step by step developed, connected and formed the shape of whole destruction with the external load increased. Combining binary-medium model with general finite elements, visual reappeared the course of the local shear band germination and progress.关键词
结构性黄土/二元介质模型/双参数破损率/局部化剪切带/有限元模拟Key words
structural loess/ binary-medium model/ double parameter breakage ratio/ localization shear band/ finite element simulation分类
建筑与水利引用本文复制引用
李宏儒,胡再强,冯飞,刘寅..结构性黄土二元介质本构模型在局部化剪切带中的应用[J].岩土力学,2012,33(9):2803-2810,8.基金项目
国家自然基金(No.50778152) （No.50778152）
陕西省教育厅科学研究计划项目(No.2010JK717) （No.2010JK717）
西安理工大学博士启动基金(No.106-210926). （No.106-210926）
