Reference : An adaptive multiscale quasicontinuum approach for mechanical simulations of elastopl...

	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Aerospace & aeronautics engineering Engineering, computing & technology : Civil engineering Engineering, computing & technology : Materials science & engineering Engineering, computing & technology : Mechanical engineering Engineering, computing & technology : Multidisciplinary, general & others
	Focus Areas :	Computational Sciences
	To cite this reference:	http://hdl.handle.net/10993/53420

Title :	An adaptive multiscale quasicontinuum approach for mechanical simulations of elastoplastic periodic lattices
Language :	English
Author, co-author :	Chen, Li [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
	Berke, Peter [Université Libre de Bruxelles - ULB > Building, Architecture and Town Planning (BATir) department > > Prof]
	Massart, Thierry [Université Libre de Bruxelles - ULB > Building, Architecture and Town Planning (BATir) department > > Prof]
	Bordas, Stéphane [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
	Beex, Lars [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Publication date :	2022
Journal title :	Mechanics Research Communications
Publisher :	Elsevier
Volume :	126
Pages :	104019
Peer reviewed :	Yes
Audience :	International
ISSN :	0093-6413
Country :	United Kingdom
Keywords :	[en] multiscale ; quasicontinuum ; lattice ; beam ; elastoplasticity ; mesh adaptivity ; refinement
Abstract :	[en] The quasicontinuum method is a multiscale method that combines locally supported coarse-grained domains, with small regions in which the microstructural model is fully resolved. This contribution proposes the first adaptive formulation of the method for microstructural elastoplasticity. The microstructural model uses an elastoplastic beam description. The indicator for refinement is the occurrence of plastic deformation, such that plasticity can only occur in fully resolved regions. An illustrative numerical example of a scratch test of an elastoplastic Kelvin lattice demonstrates the capabilities of the resulting framework.
Funders :	Fonds National de la Recherche - FnR ; F.R.S.-FNRS
Name of the research project :	ROPETEST
Permalink :	http://hdl.handle.net/10993/53420
DOI :	10.1016/j.mechrescom.2022.104019
Other URL :	https://www.sciencedirect.com/science/article/abs/pii/S0093641322001513
FnR project :	FnR ; FNR14310624 > Lars Beex > ROPETEST > Towards Efficient Simulations Of Aggregates Of Slender Bodies. > 01/04/2020 > 31/03/2023 > 2019

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