Implementation of a Micromechanical Model for BVPs

被引:0
|
作者
Zhao, Chao-Fa [1 ,3 ]
Yin, Zhen-Yu [1 ,2 ,3 ]
Hicher, Pierre-Yves [1 ,3 ]
机构
[1] Ecole Cent Nantes, Res Inst Civil Engn & Mech GeM, UMR CNRS 6183, Nantes, France
[2] Tongji Univ, Dept Geotech Engn, Coll Civil Engn, Shanghai 200092, Peoples R China
[3] Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China
来源
PROCEEDINGS OF GEOSHANGHAI 2018 INTERNATIONAL CONFERENCE: FUNDAMENTALS OF SOIL BEHAVIOURS | 2018年
基金
中国国家自然科学基金;
关键词
Granular material; Multiscale modelling; Geotechnical structures; BEHAVIOR; SAND;
D O I
10.1007/978-981-13-0125-4_95
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Micromechanics-based model have proved to be efficient in describing the mechanical behaviour of granular soils with few physical meaning parameters. Among these models, a family of micromechanical models was constructed based on the static approach that is a bridge connecting micro forces and macro stress. This paper presents the application of a static hypothesis based CH micromechanical model to solve boundary value problems (BVPs) using an implicit integration method. The model was first calibrated by results of elementary tests of Hostun sand and then was implemented into a finite element code. Two typical boundary value problems: a biaxial test and a square footing were numerically analysed to demonstrate how the micromechanical model can be applied to multiscale modelling of geotechnical structures.
引用
收藏
页码:849 / 855
页数:7
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