基于ABAQUS的SBFEM及在混凝土坝非线性动力响应分析中的应用 原创

概述：

（1）采用八叉树平衡算法对空间离散，以ABAQUS 为平台进行UEL二次开发，将比例边界有限元方法嵌入到ABAQUS中；实现一种基ABAQUS平台的具有高效计算性能的多面体比例边界有限单元。

（2）发展一种耦合方法将SBFEM 与 ABAQUS 自带的单元库和非线性模型结合；该方法兼具比例边界有限元高精度求解优势和ABAQUS强大的非线性求解能力优势，解决ABAQUS用户自定义单元无法可视化问题。

（3）建立坝体-地基-库水动力相互作用模型，将基于SBFEM 的考虑横缝接触非线性的混凝土坝模型应用到该工程实例；对混凝土坝非线性地震动响应特性研究，对坝体关键部位力学响应进行评价分析。

Refs： --An open-source ABAQUS implementation of the scaled boundary finite element method to study interfacial problems using polyhedral meshes

--Development of ABAQUS UEL/VUEL subroutines for scaled boundary finite element method for general static and dynamic stress analyses

--PSBFEM-abaqus: development of user element subroutine (UEL) for polygonal scaled boundary finite element method in Abaqus

--Free and Forced Vibration Analysis in Abaqus Based on the Polygonal Scaled Boundary Finite Element Method

--A polygonal scaled boundary finite element method for solving heat conduction problems

--Seismic Analysis of Post-tensioned Gravity Dams using Scaled Boundary Finite Element Method Boundary Finite Element Method

--Implementation of arbitrary polyhedral elements for automatic dynamic analyses of three-dimensional structures --A Novel Solution for Seepage Problems Implemented in the Abaqus UEL Based on the Polygonal Scaled Boundary Finite Element Method

--Seismic analysis of post-tensioned concrete gravity dams using scaled boundary finite elements implemented as ABAQUS UEL

Bgm：江上清风游，作者：变奏的梦想，网易云主页：https://music.163.com/#/artist?id=1085053