铁道科学与工程学报2017，Vol.14Issue(1)：31-37,7.
考虑洛德角影响的边界面模型在ABAQUS中的数值研究
Numerical study of a boundary model considering effects of Lode angle in ABAQUS
摘要
Abstract
Based on the finite element software ABAQUS user material subroutine UMAT, consider the boundary model for influence of Lode angle of secondary development. The key techniques and implementation steps of the numerical implementation are given. Using the subroutine of normally consolidated and over consolidated kaolin were consolidated undrained triaxial test and numerical simulation. The results show that considering the Lode an-gle influence the boundary surface model can better simulate the soil stress strain characteristics, the calculation result is more close to the measured data to verify the subroutine considering Lode angle correctness, reliability and superiority. The result of the calculation is reasonable and reliable, which indicates that it can be applied to the analysis of three axis consolidation and non drainage experiment of soil ingeotechnical engineering, expand the application range of the ABAQUS.关键词
洛德角/边界面模型/有限元/二次开发Key words
lode angle/boundary model/finite element method/secondary development分类
建筑与水利引用本文复制引用
冷伍明,伍晓伟,杨奇,聂如松,赵春彦..考虑洛德角影响的边界面模型在ABAQUS中的数值研究[J].铁道科学与工程学报,2017,14(1):31-37,7.基金项目
国家自然科学基金资助项目(U1361204,51408613,51478478) （U1361204,51408613,51478478）
中国神华集团科研专项资助项目(SHGF-14-55) （SHGF-14-55）
中南大学研究生创新项目(2016zzts80) （2016zzts80）
