A hybrid contact approach for modeling soil-structure interaction using the material point method

作     者：Qinyang Sang Yonglin Xiong Rongyue Zheng Xiaohua Bao Guanlin Ye Feng Zhang Qinyang Sang;Yonglin Xiong;Rongyue Zheng;Xiaohua Bao;Guanlin Ye;Feng Zhang

作者机构：Key Laboratory of Impact and Safety EngineeringMinistry of EducationSchool of Mechanical Engineering and MechanicsNingbo UniversityNingbo315211China Institute of Geotechnical EngineeringNingbo UniversityNingbo315211China College of Civil and Transportation EngineeringShenzhen UniversityShenzhen518060China Department of Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Department of Civil EngineeringNagoya Institute of TechnologyShowa-kuGokiso-choNagoya466-8555Japan 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)

年 卷 期：2024年第16卷第5期

页      面：1864-1882页

核心收录：

学科分类：08[工学] 0818[工学-地质资源与地质工程] 080104[工学-工程力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：funding support from the National Nature Science Foundation of China(Grant No.52022060) the Key Laboratory of Impact and Safety Engineering(Ningbo University) 

主　　题：Material point method Soil-structure interaction Numerical simulation Contact algorithm 

摘      要：The grid-based multi-velocity field technique has become increasingly popular for simulating the Material Point Method(MPM)in contact ***,this traditional technique has some shortcomings,such as(1)early contact and contact penetration can occur when the contact conditions are unsuitable,and(2)the method is not available for contact problems involving rigid-nonrigid materials,which can cause numerical *** study presents a new hybrid contact approach for the MPM to address these limitations to simulate the soil and structure *** approach combines the advantages of point-point and point-segment contacts to implement contact detection,satisfying the impenetrability condition and smoothing the corner contact *** proposed approach is first validated through a disk test on an inclined ***,several typical cases,such as granular collapse,bearing capacity,and deformation of a flexible retaining wall,are simulated to demonstrate the robustness of the proposed approach compared with FEM or analytical ***,the proposed method is used to simulate the impact of sand flow on a deformable *** results show that the proposed contact approach can well describe the phenomenon of soil-structure interaction problems.