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Títol:	Combination of a non-local damage model for quasi-brittle materials with a mesh-adaptive finite element technique
Autor/a:	Pouplana Sarda, Ignasi de; Oñate Ibáñez de Navarra, Eugenio
Altres autors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. GMNE - Grup de Mètodes Numèrics en Enginyeria
Abstract:	Progressive fracture in quasi-brittle materials is often treated via strain softening models in continuum damage mechanics. Such constitutive relations favour spurious strain localization and ill-posedness of boundary value problems. The introduction of non-local damage models together with a characteristic length parameter controlling the size of the fracture process zone is known to regularize the problem. In order to account for the non-locality of these models, it is crucial to work with fine spatial discretizations at the damage progress zone. In this paper we present a non-local damage model in combination with a mesh-adaptive finite element technique that can help automatize the analysis of progressive fracture problems in an efficient manner. Classical two-dimensional examples are given to illustrate the presented approach.
Matèries:	-Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits -Àrees temàtiques de la UPC::Enginyeria dels materials -Brittleness--Mathematical models -Quasi-brittle materials -Continuum damage mechanics -Non-local damage models -Finite element method -Mesh-adaptivity -Fragilitat -- Models matemàtics
Drets:	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Tipus de document:	Article - Versió presentada Article
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