欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
在临界状态理论的基础上,通过引入修正屈服函数的结构性参数,可更好地描述松砂的塑性变形特性。通过引入状态参数来调整硬化参数和剪胀方程,从而更好地反映松砂的剪缩特性和对密度、有效主应力的双重依赖性。同时,模型采用砂土等压固结线和临界状态线在有效应力幂函数平面内呈线性关系的特性,更准确地反映了砂土的应力-应变特性。通过数值模拟结果与试验结果对比,验证了模型的有效性。
英文摘要：
Based on the critical state theory, a constitutive model was proposed for structural loose sand. The structural parameter was used to revise the yield function, thereby predicting the plastic deformation of loose sand more appropriately. Another parameter was used to adjust the hardening parameter and dilatancy equation, thus giving a better description of contraction behavior for loose sand. The introduction of the parameters emphasized the dependency on both density and effective principal stress of sand. Linear isotropic consolidation and critical state lines were applied in void ratio versus the power of effective mean stress space, and more accurately reflected the stressstrain behavior of sand. A comparison between model simulations and experimental results showed the validity of the proposed model.
同期刊论文项目
同项目期刊论文
位置：