- Title
- A generalised multi-scale Peridynamics–DEM framework and its application to rigid–soft particle mixtures
- Creator
- Hartmann, Philipp Hartmann; Thoeni, Klaus; Rojek, Jerzy
- Relation
- ARC.DP190102407 http://purl.org/au-research/grants/arc/DP190102407
- Relation
- Computational Mechanics Vol. 71, Issue 1, p. 107-126
- Publisher Link
- http://dx.doi.org/10.1007/s00466-022-02227-1
- Publisher
- Springer
- Resource Type
- journal article
- Date
- 2022
- Description
- The discrete element method (DEM) is the most dominant method for the numerical prediction of dynamic behaviour at grain or particle scale. Nevertheless, due to its discontinuous nature, the DEM is inherently unable to describe microscopic features of individual bodies which can be considered as continuous bodies. To incorporate microscopic features, efficient numerical coupling of the DEM with a continuous method is generally necessary. Thus, a generalised multi-scale PD–DEM framework is developed in this work. In the developed framework, meshfree discretised Peridynamics (PD) is used to describe intra-particle forces within bodies to capture microscopic features. The inter-particle forces of rigid bodies are defined by the DEM whereas a hybrid approach is applied at the PD–DEM interface. In addition, a staggered multi-scale time integration scheme is formulated to allow for an efficient numerical treatment of both methods. Validation examples are presented and the applicability of the developed framework to capture the characteristics mixtures with rigid and deformable bodies is shown.
- Subject
- Peridynamics (PD); discrete element method (DEM); contact coupling; multi-scale modelling; deformable particles
- Identifier
- http://hdl.handle.net/1959.13/1480231
- Identifier
- uon:50462
- 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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