Reference : Restoring Mesh Independency in FEM-DEM Multi-scale Modelling of Strain Localization U...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/218309
Restoring Mesh Independency in FEM-DEM Multi-scale Modelling of Strain Localization Using Second Gradient Regularization
English
Desrues, Jacques []
Argilaga, Albert mailto [Université de Liège - ULiège > Département ArGEnCo > Géomécanique et géologie de l'ingénieur >]
Dal Pont, Stefano []
Combe, Gael []
Caillerie, Denis []
Nguyen, Trung Kien []
22-Apr-2017
Bifurcation and Degradation of Geomaterials with Engineering Applications
Papamichos, Euripides
Papanastasiou, Panos
Pasternak, Elena
Dyskin, Arcady
Springer
453-457
No
No
International
IWBDG 2017: Bifurcation and Degradation of Geomaterials with Engineering Applications
2017
[en] FEMxDEM ; Second gradient ; regularization ; double scale
[en] Continuum media from classical mechanics cannot appropriately reproduce the evolution of materials exhibiting strong heterogeneities in the strain field, e.g. strain localization. Models without a microscale representation cannot properly reproduce the microscale mechanisms that trigger the strain localization, in addition, first gradient relations don’t present any length parameter in the formulation. This results in a model without a characteristic length that cannot exhibit any objective band width. In this paper, techniques to introduce an internal length will be enumerated. Microstuctured materials will be retained and in particular Second Gradient model will be exposed and used along with a FEMxDEM approach. Numerical results showing the abilities of the enriched model will conclude the text.
Researchers
http://hdl.handle.net/2268/218309
10.1007/978-3-319-56397-8_57
https://link.springer.com/chapter/10.1007/978-3-319-56397-8_57

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