同济大学学报（自然科学版）2012，Vol.40Issue(12)：1783-1788,6.DOI:10.3969/j.issn.0253-374x.2012.12.007
基于细观理论的粗粒土剪胀性及本构模型
Dilatancy of Coarse Aggregates and Its Modeling Based on Micro Theory
孙海忠1
作者信息
- 1. 同济大学土木工程学院,上海200092;上海岩土工程勘察设计研究院有限公司,上海200032
- 折叠
摘要
Abstract
Based on principles of energy conservation and energy minimum ratio proposed by Rowe, the dilatancy equation considering particle breakage was established on micro level. In order to verify the correctness of dilatancy equation, the corresponding elastic-plastic constitutive model was set up by introducing the modified hardening rule. Then the numerical simulation of triaxial tests about two different shape coarse granular aggregates was carried out. Results show that this model can accurately describe the dilatancy characteristic and stress-strain relationship of coarse granular aggregates.关键词
剪胀性/颗粒破碎/粗粒土/细观理论/本构模型Key words
dilatancy/particle breakage/coarse granular aggregates/micro theory/constitutive model分类
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孙海忠..基于细观理论的粗粒土剪胀性及本构模型[J].同济大学学报（自然科学版）,2012,40(12):1783-1788,6.
