- Title
- Time domain coupling of the boundary and discrete element methods for 3D problems
- Creator
- Barros, Guilherme; Pereira, Andre; Rojek, Jerzy; Carter, John; Thoeni, Klaus
- Relation
- ARC.DP190102407 http://purl.org/au-research/grants/arc/DP190102407
- Relation
- Computational Mechanics Vol. 74, p. 779-797
- Publisher Link
- http://dx.doi.org/10.1007/s00466-024-02455-7
- Publisher
- Springer
- Resource Type
- journal article
- Date
- 2024
- Description
- This paper presents an extension of the authors’ previously developed interface coupling technique for 2D problems to 3D problems. The method combines the strengths of the Discrete Element Method (DEM), known for its adeptness in capturing discontinuities and non-linearities at the microscale, and the Boundary Element Method (BEM), known for its efficiency in modelling wave propagation within infinite domains. The 3D formulation is based on spherical discrete elements and bilinear quadrilateral boundary elements. The innovative coupling methodology overcomes a critical limitation by enabling the representation of discontinuities within infinite domains, a pivotal development for large-scale dynamic problems. The paper systematically addresses challenges, with a focus on interface compatibility, showcasing the method’s accuracy through benchmark validation on a finite rod and infinite spherical cavity. Finally, a model of a column embedded into the ground illustrates the versatility of the approach in handling complex scenarios with multiple domains. This innovative coupling approach represents a significant leap in the integration of DEM and BEM for 3D problems and opens avenues for tackling complex and realistic problems in various scientific and engineering domains.
- Subject
- interfact coupling; concurrent multi-scale coupling; boundary element method (BEM); discrete element method (DEM); staggered time integration; dynamic wave propagation
- Identifier
- http://hdl.handle.net/1959.13/1511969
- Identifier
- uon:56574
- Identifier
- ISSN:0178-7675
- Rights
- This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
- Language
- eng
- Full Text
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