摘要
通过土颗粒之间的连接其在土体受力过程中的变形特性,根据弹塑性理论建立土体的并联弹簧模型。结合土体在受力过程中处于塑性流动的连接数目和土体中连接总数目的比值来建立土体的损伤变量,进而推导出土体受力时的应力应变关系。实例表明,所推导的土体本构关系是合理的。
Based on the deformation property in the process of soil mass in stress because soils was closed with each other,and the elastic-plastic theory,this paper established the parallel spring model of soil mass.And also built up the damage variable of soil based on the ratio between the connection number in flexible flow and the total connection number when soil mass was in stress,then deduced the stress-strain relation of the soil mass in stress.The instance indicated that the stress-strain relation of soil mass deduced in the paper was appropriate.
出处
《资源环境与工程》
2010年第5期566-570,共5页
Resources Environment & Engineering
基金
国家自然科学基金资助项目
项目编号:50868009
关键词
本构关系
损伤变量
加载
卸载
constitutive relation
damage variable
load
unload
