Macro-micro numerical analysis of granular materials considering principal stress rotation based on DEM simulation of dynamic hollow cylinder test

被引：31

作者：

Cui, Xinzhuang ^{[1
,2
]}

Li, Xiangyang ^{[2
]}

Du, Yefeng ^{[2
]}

Bao, Zhenhao ^{[2
]}

Zhang, Xiaoning ^{[2
]}

Hao, Jianwen ^{[2
]}

Hu, Yangyu ^{[3
]}

机构：

[1] Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China

[2] Shandong Univ, Sch Civil Engn, Jinan 250061, Peoples R China

[3] Shanghai Univ, Dept Civil Engn, Shanghai 200444, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2024年 / 412卷

基金：

中国国家自然科学基金;

关键词：

Granular materials; DEM simulation; Principal stress rotation; Dynamic hollow cylinder test; Macro -micro analysis; DISCRETE ELEMENT; BEHAVIOR; FAILURE; CLAY;

D O I：

10.1016/j.conbuildmat.2023.134818

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The granular materials were subjected to the principal stress rotation effect induced by traffic loads, wave loads, and earthquake loads in geotechnical engineering practice. In order to reveal the influence of principal stress rotation on the macro-micro dynamic characteristics, this study proposed a numerical simulation method modeling physical dynamic hollow cylinder tests. Taking the dynamic stress state induced by traffic loading as an example, the numerical test model of the dynamic hollow cylinder was conducted on the subgrade soil, and the influence of principal stress rotation on the macro-micro evolution of dynamic characteristics was analyzed.The results showed that the principal stress rotation accelerated the development of vertical accumulative plastic strain and particle displacement, which aggravated micro-structure destruction of granular material. Moreover, the increase of confining stress declined the variations of normal contact numbers in each direction, which resisted the shear stress induced by principal stress rotation. This study provided a novel method to investigate the macro-micro dynamic characteristics of granular materials subjected to principal stress rotation, which made up for the inability of physical hollow cylinder tests to study microscopic evolution.

引用

页数：16

共 11 条

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Khakpour, Mehran
Mirghasemi, Ali Asghar
POWDER TECHNOLOGY, 2023, 425
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Farhang, B.
Mirghasemi, A. A.
V INTERNATIONAL CONFERENCE ON PARTICLE-BASED METHODS - FUNDAMENTALS AND APPLICATIONS (PARTICLES 2017), 2017, : 481 - 488
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Farhang, Benyamin
Mirghasemi, Ali Asghar
ADVANCED POWDER TECHNOLOGY, 2017, 28 (09) : 2052 - 2064
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Sazzad, Md Mahmud
Suzuki, Kiichi
GRANULAR MATTER, 2013, 15 (05) : 583 - 593
[5] Density dependent macro-micro behavior of granular materials in general triaxial loading for varying intermediate principal stress using DEM
Md. Mahmud Sazzad
Kiichi Suzuki
Granular Matter, 2013, 15 : 583 - 593
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Hailin Wang
Hong Sun
Xiurun Ge
Fujun Niu
KSCE Journal of Civil Engineering, 2023, 27 : 4176 - 4191
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Wang, Hailin
Sun, Hong
Ge, Xiurun
Niu, Fujun
KSCE JOURNAL OF CIVIL ENGINEERING, 2023, 27 (10) : 4176 - 4191
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Chu, Xihua
Yu, Cun
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GEOMECHANICS FROM MICRO TO MACRO, VOLS I AND II, 2015, : 759 - 764
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Xue, Long
Kruyt, Niels P.
Wang, Rui
Zhang, Jian-Min
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 2019, 43 (14) : 2227 - 2250
[10] Global identifiability analysis of macro-micro coupled viscoplastic constitutive model considering dynamic recrystallization based on sensitivity
Qu, Jie, 1600, Beijing Institute of Technology (34):

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