|
个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 大连理工大学水利工程学院院长、海岸和近海工程国家重点实验室副主任、辽宁省工程防灾减灾重点实验室副主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：水利工程系
学科：水工结构工程. 防灾减灾工程及防护工程. 岩土工程
联系方式：zoudegao@dlut.edu.cn
电子邮箱：zoudegao@dlut.edu.cn
A coupled meshless-SBFEM-FEM approach in simulating soil-structure interaction with cross-scale model
点击次数：
论文类型：期刊论文
发表时间：2021-02-02
发表刊物：SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
卷号：136
ISSN号：0267-7261
关键字：Multilevel cross-scale model; Meshless interface; Meshless-SBFEM-FEM; Soil-structure interaction; Metro structure
摘要：This paper presents an integrated, customized routine that uses object-oriented programming and a "super element class" to apply an integrated approach to simulate soil-structure interaction (SSI) problems. The scaled boundary finite element method (SBFEM) and finite element method (FEM) are applied together with the quad tree technique to implement cross-scale modeling for solid elements. Meanwhile, the meshless interface seamlessly connects mismatched and differing sizes of meshes between the soil and the structure, thus allowing cross-scale modeling at the interface level. In addition, through modify the radial point interpolation function (RPIM) and the method of searching supporting nodes, the precision near the boundaries of meshless interface are improved, and circular (cambered) type interfaces can be simulated. Thus, through a coupled Meshless-SBFEM-FEM approach, a fine analysis of soil-structure interaction problem with multilevel cross-scale model can be conducted.