水利学报2025，Vol.56Issue(2)：145-158,14.DOI:10.13243/j.cnki.slxb.20240293
土壤干缩开裂和卷曲分析的数值模型与若干进展Ⅱ:无网格粒子类方法与混合数值模型
Advances in numerical model of soil desiccation cracking and curling Ⅱ:Meshfree and particle-based numerical methods and peridynamics
摘要
Abstract
Soils desiccation cracking and curling can potentially trigger natural disasters,making it a long-standing issue of concern in both academic and engineering fields.However,the physical processes and mechanical mecha-nisms underlying desiccation cracking and curling are complex,with numerous influencing factors,posing signifi-cant challenges for the accurate replicate of the whole processes based on the theoretical and experimental analysis.Although mesh-based methods have made significant research progress,cracking issues continue to pose challenges due to their intrinsic limitations.Meshfree and particle-based methods offer unique advantages in describing crack-ing phenomena and have been increasingly developed in recent years for analyzing soil desiccation cracking and curling.This paper reviews the major advancements in mesh-free numerical models and certain hybrid numerical methods in this field.Additionally,peridynamics is recommended for analyzing soil desiccation cracking and curl-ing,with the related research results of the author team.The research results indicated that peridynamics still re-quires further investigation in several areas:numerical models for multi-physical field coupling analyses,elasto-plastic constitutive relationships,multi-scale simulations,the evolution of soil property parameters accompanied by complex boundary conditions,and the development of high-precision and efficient numerical algorithms.关键词
土体干缩开裂/土层卷曲/无网格粒子类方法/混合数值模型/近场动力学Key words
soil desiccation cracking/curling/meshfree and particle-based numerical methods/hybrid numerical methods/peridynamics分类
建筑与水利引用本文复制引用
章青,刘攀勇,顾鑫,乔延赫..土壤干缩开裂和卷曲分析的数值模型与若干进展Ⅱ:无网格粒子类方法与混合数值模型[J].水利学报,2025,56(2):145-158,14.基金项目
国家自然科学基金项目(12472200,12172121,12002118) （12472200,12172121,12002118）
湖南省水利科技项目(XSKJ2023059-16) （XSKJ2023059-16）
