同济大学学报（自然科学版）2011，Vol.39Issue(12)：1767-1772,6.DOI:10.3969/j.issn.0253-374x.2011.12.007
多种应力路径条件下上海粉细砂的室内试验
Laboratory Experimental Study on Shanghai Fine Sand Along Different Stress Paths
摘要
Abstract
The deformation and strength behaviour of Shanghai fine sand is studied through a series of plane strain compression (PSC) tests with different stress paths. The result from the PSC tests shows that the shear strain, volumetric strain,plastic shear strain,plastic volumetric strain and plastic work are all influenced by stress path for Shanghai fine sand. Therefore,none of the above quantities can be used as appropriate hardening parameter for Shanghai fine sand. Based on the experimental results from the PSC tests for Shanghai fine sand,a modified plastic work parameter and the related function are proposed. The proposed parameter and function are independent of stress path, which can be used as the shear hardening state parameter and hardening function in the constitutive modelling for Shanghai fine sand.关键词
上海粉细砂/平面应变压缩试验/应力路径/硬化参数/硬化函数Key words
Shanghai fine sand/plane strain compression tests/stress-path/hardening parameter/hardening function分类
建筑与水利引用本文复制引用
彭芳乐,白小宇,雷亮..多种应力路径条件下上海粉细砂的室内试验[J].同济大学学报（自然科学版）,2011,39(12):1767-1772,6.基金项目
国家自然科学基金(50679056,40972176) （50679056,40972176）
教育部新世纪优秀人才支持计划(NCET-06-0378) （NCET-06-0378）
上海市曙光计划(05SG25) （05SG25）
上海市重点学科建设项目(B308) （B308）
