岩土工程学报Issue(2)：299-305,7.DOI:10.11779/CJGE201502013
考虑级配效应的粒状材料本构模拟
Constitutive modeling for granular materials considering grading effect
摘要
Abstract
The granular materials are widely used in geotechnical engineering, whose grading changing feature will affect their mechanical behavior obviously, especially the bearing capacity. In order to well describe the influence of grain-size distribution on the mechanical behavior of granular materials, a simple constitutive model taking into account the grading-dependent critical state line is developed within the framework of elasto-plasticity and the critical state theory. The model is used to simulate the drained and undrained triaxial compression tests on different types of granular materials (DEM ideal sphere, artificial material glass ball and natural material Hostun sand). It is found that only one group of grading-dependent critical state parameters is needed for describing the mechanical response of granular materials with different gradings.关键词
颗粒级配/粒状材料/本构模型/临界状态Key words
grain-size distribution/granular material/constitutive model/critical state分类
建筑与水利引用本文复制引用
刘映晶,王建华,尹振宇,李罡,夏小和..考虑级配效应的粒状材料本构模拟[J].岩土工程学报,2015,(2):299-305,7.基金项目
国家自然科学基金项目（41372285，41272317，41172251）；高等学校博士学科点专项科研基金项目（20110073120012）；中法联合基金项目 （）
