东南大学学报（自然科学版）2026，Vol.56Issue(6)：803-811,9.DOI:10.3969/j.issn.1001-0505.2026.06.001
饱和多孔介质中准静态大变形问题的水力耦合ABAQUS-PFEM计算框架
A coupled hydro-mechanical ABAQUS-PFEM framework for quasi-static large-deformation problems in saturated porous media
摘要
Abstract
The numerical calculation of coupled hydro-mechanical problems is a significant challenge in geo-mechanics.General-purpose finite element(FE)software is predominantly restricted to small-strain analysis when solving such problems,making it difficult to directly apply to large deformation problems.Therefore,an efficient computational framework based on the particle finite element method(PFEM)was constructed.This framework utilized Python scripts to develop core PFEM modules,including Alpha-Shape-based bound-ary recognition,Laplacian smoothing for mesh optimization,and state variable mapping based on the inverse distance weighting(IDW)algorithm.Through the secondary development of the ABAQUS software,the ABAQUS solution for hydro-mechanical coupled PFEM was realized.It was validated against benchmark cases including one-dimensional consolidation and strip footing,and applied to the analysis of submarine pipeline-soil interaction problems.The results demonstrate the proposed framework achieves good numerical accuracy and stability for quasi-static large-deformation problems in saturated porous media,providing an effi-cient and feasible new pathway for solving complex coupled problems.关键词
水土耦合/大变形/粒子有限元法/土-结构相互作用Key words
hydro-mechanical coupling/large deformation/particle finite element method/soil-structure in-teraction分类
建筑与水利引用本文复制引用
杨杰,刘航鹰,金银富,尹振宇,陈湘生..饱和多孔介质中准静态大变形问题的水力耦合ABAQUS-PFEM计算框架[J].东南大学学报（自然科学版）,2026,56(6):803-811,9.基金项目
国家自然科学基金资助项目(52308362,52578420) （52308362,52578420）
广东省自然科学基金资助项目(2025A1515010232) （2025A1515010232）
深圳市科技计划资助项目(KQTD20221101093555006,JCYJ20250604181522029). （KQTD20221101093555006,JCYJ20250604181522029）
