Stress continuity in DEM-FEM multiscale coupling based on the generalized bridging domain method

Tu, Fubin; Jiao, Yu‐Yong; Chen, Zongwu; Zou, Junpeng; Zhao, Zhiye

doi:10.1016/j.apm.2020.02.030

Cited by 8 publications

(1 citation statement)

References 38 publications

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“…FEM and DEM), many studies combining the two methods in a unified simulation have been proposed recently. They can be distinguished in two main families: direct interaction between FEM×DEM which includes surface or volume coupling [5][6][7][8][9]; and multi-scale coupling in which FEM is employed at macro scale while DEM is used at smaller scale [10][11][12][13][14]. Unlike the former which couples the two methods directly, the latter combines FEM and DEM by bridging the scales between them.…”

Section: Introductionmentioning

confidence: 99%

Coupled finite-discrete element modeling and potential applications in civil engineering

Kiên

Hoang

2021

STCE

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Since its appearance at the last of seventy decades, the Discrete Element Modeling (DEM) has been widely used in the modeling of geomaterials but regrettably limited to small scales problems by considering grains interactions. Recently, a new trend has emerged in combining DEM with other methods. The coupled approach allows extending the methods toward a wide range of civil engineering applications. Among them, FEM×DEM coupling has been the topic of research over the past decade. The FEM×DEM coupling has been mainly developed in two categories: direct interaction and multi-scale coupled models. In the first regard, this paper summarizes the basic principle of FEM and DEM, then reviews a number of possible direct coupling strategies between FEM and DEM together with potential applications in civil engineering. The second objective is to develop a model that combines these two above mentioned methods in a multi-scale approach. The results obtained by the developed model have been proved to efficiently tackle the complicated problem in engineering applications by assessing both macro and micro features and establishing the linking information between them.

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Section: Introductionmentioning

confidence: 99%

Coupled finite-discrete element modeling and potential applications in civil engineering

Kiên

Hoang

2021

STCE

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A review of multiscale numerical modeling of rock mechanics and rock engineering

Wei,

Li,

Zhao

2024

Deep Underground Science and Engineering

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Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological laws at the macroscale cannot render a quantitative relationship between microscopic damage of rocks and overall rock structural degradation. This may lead to problems in the evaluation of rock structure stability and safe life. Multiscale numerical modeling is regarded as an effective way to gain insight into factors affecting rock properties from a cross‐scale view. This study compiles the history of theoretical developments and numerical techniques related to rock multiscale issues according to different modeling architectures, that is, the homogenization theory, the hierarchical approach, and the concurrent approach. For these approaches, their benefits, drawbacks, and application scope are underlined. Despite the considerable attempts that have been made, some key issues still result in multiple challenges. Therefore, this study points out the perspectives of rock multiscale issues so as to provide a research direction for the future. The review results show that, in addition to numerical techniques, for example, high‐performance computing, more attention should be paid to the development of an advanced constitutive model with consideration of fine geometrical descriptions of rock to facilitate solutions to multiscale problems in rock mechanics and rock engineering.

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Analytical method for mechanical analysis of multiple shallow tunnels with concrete linings

Fang

Zhang

Huang

et al. 2023

Applied Mathematical Modelling

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Stress continuity in DEM-FEM multiscale coupling based on the generalized bridging domain method

Cited by 8 publications

References 38 publications

Coupled finite-discrete element modeling and potential applications in civil engineering

Coupled finite-discrete element modeling and potential applications in civil engineering

A review of multiscale numerical modeling of rock mechanics and rock engineering

Analytical method for mechanical analysis of multiple shallow tunnels with concrete linings

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