SANISAND-MS本构模型
1. 引言
SANISAND-MS模型是一个约束面塑性模型(bounding surface plasticity model),特别适用于再现高循环加载条件下砂的排水力学响应,PLAXIS 2023.2作为用户自定义模型引入了这个模型(sanisandms64.dll)【Plaxis 2D/3D 2023.2新功能】,目前仅在Plaxis 3D使用,共有21个输入参数。![](https://public.fangzhenxiu.com/fixComment/commentContent/imgs/1699117348887_qqzxy3.jpg?imageView2/0)
SANISAND-MS模型是对已建立的砂的临界状态约束面塑性模型的扩展,在 SANISAND04(Dafalias and Manzari, 2004)的框架中增加了两个新的分量:记忆面(Memory Surface)和半流化状态(Semifluidized State),因此称作SANISAND-MS。该模型能够捕捉到在高循环载荷作用下实验室试验中观察到的永久应变累积和刚度演变。2. 应用
SANISAND-MS 模型最初是为海洋工程领域而设计的,用于评估单调荷载下的单桩侧向承载力和大量循环侧向荷载下的累积变形,但也可应用于其他工程问题,如对高速交通荷载、机器地基和其他循环荷载引起的永久地基沉降进行评估。
3. 参考
[1] (2008) SANISAND: simple anisotropic sand plasticity model.[2] (2015) Application of an advanced constitutive model in nonlinear dynamic analysis of tailings dam.[3] (2016) SANISAND-Z: Zero elastic range sand plasticity model.[4] (2019) Modelling the cyclic ratcheting of sands through memory-enhanced bounding surface plasticity.[5] (2019) Memory-Enhanced Plasticity Modeling of Sand Behaviour under Undrained cyclic loading.[6] (2021) Cyclic axial behaviour of piles in sand: 3D FE modelling using SANISAND-MS.[7] (2020) Application of a SANISAND Model for Numerical Simulations of the LEAP 2017 Experiments. [8] (2022) From cyclic sand ratcheting to tilt accumulation of offshore monopiles: 3D FE modelling using SANISAND-MS. [9] (2023) Non-Linear Dynamic Analysis of Filtered Dry Stacked Tailings Using the SANISAND-Sf and PM4S and Constitutive Models.[10] (2023) Analysis of a dry-stack tailings storage facility using the SANISAND constitutive model.[11] (2023) PLAXIS SANISAND-MS UDSM. 著作权归作者所有,欢迎分享,未经许可,不得转载
首次发布时间:2023-11-16
最近编辑:9月前