水利学报Issue(4)：451-461,11.
Hardfill材料非线性弹性本构模型研究
Study on nonlinear elasticity constitutive model of Hardfill material
摘要
Abstract
Hardfill material is a new material with low strength in which the granular materials are solidi⁃fied with some cementing material. The nature of the special material is between RCC and soil,which has typical features as elastic-plastic material in its stress-strain relations and obvious behavior of strain soften⁃ing. On the summary of the early researches,a non-linear elasticity constitutive model for Hardfill material was put forth. The constitutive model can indicate the strain softening behavior accurately and all of the six parameters have specific physical interpretation and can be determined by material uniaxial and triaxial test using the given solution procedure. The verified constitutive model was applied to the Oyuk dam,a typical Hardfill dam at 100m level. The results show that the distribution of the stress and deformation is mainly accordant in both the non-linear and linear elastic calculation,and there is little difference because of the low stress level. However,the stress is obviously smaller in the non-linear calculation than the linear elas⁃tic result in the high stress level at the toe of the dam.关键词
Hardfill材料/非线性弹性/本构模型/应变软化Key words
Hardfill material/non-linear elasticity/constitutive model/strain softening分类
建筑与水利引用本文复制引用
刘俊林,何蕴龙,熊堃,李建成..Hardfill材料非线性弹性本构模型研究[J].水利学报,2013,(4):451-461,11.基金项目
国家自然科学基金资助项目（50679058）；中国博士后科学基金（2012M511594）；国家大坝安全工程技术研究中心开放基金 （）
