计算力学学报2012，Vol.29Issue(3)：375-380,6.
考虑破碎影响的颗粒材料亚塑性模型及应变局部化模拟
A hypoplastic model and numerical modeling of strain localization of granular materials exhibiting particle crushing
摘要
Abstract
Based on the hypoplastic model with 2na P-K stress rate,a hypoplastic model for granular mate- rials exhibiting particle crushing is presented by adopting an experiential curve between void and a wide range of mean effective pressure, including those sufficient to cause particle crushing. The modes of strain localization and loading carry capability of granular materials are investigated under two cases, （1） considering particle crushing （2） without considering particle crushing; numerical results illustrate the capability and performance of presented model in modeling the effects of particle crushing on deformation of granular materials.关键词
颗粒材料/亚塑性模型/颗粒破碎/应变局部化Key words
granular materials/hypoplastic model/particle crushing/strain localization分类
数理科学引用本文复制引用
楚锡华,沈顺,余村,姜清辉..考虑破碎影响的颗粒材料亚塑性模型及应变局部化模拟[J].计算力学学报,2012,29(3):375-380,6.基金项目
国家自然科学基金(10802060),国家自然科学基金(11172216)资助项目 （10802060）
国家重点基础研究发展计划(2010CB732005 （）
2010CB731502) （）
