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Homogenization of elastic media with gaseous inclusions
(SIAM PUBLICATIONS, 2008)
We study the asymptotic behavior of a system modeling a composite material made of an elastic periodically perforated support, with period epsilon > 0, and a perfect gas placed in each of these perforations, as epsilon ...
Cohesive surface model for fracture based on a two-scale formulation: computational implementation aspects
(Springer, 2016-10)
The paper describes the computational aspects and numerical implementation of a two-scale cohesive surface methodology developed for analyzing fracture in heterogeneous materials with complex micro-structures. This approach ...
Computational Homogenization of Inelastic Materials using Model Order Reduction
(CIMNE, 2014)
The present work is concerned with the application of projection-based, model reduction techniques to the efficient solution of the cell equilibrium equation appearing in (otherwise prohibitively costly) two-scale, ...
Failure-Oriented Multi-scale Variational Formulation: Micro-structures with nucleation and evolution of softening bands
(Elsevier Science Sa, 2012-12-05)
This contribution presents the theoretical foundations of a Formulation (FOMF) for modeling heterogeneous softening-based materials undergoing strain localization phenomena. The multi-scale model considers two coupled ...
Multiscale formulation for material failure accounting for cohesive cracks at the macro and micro scales
(Pergamon-Elsevier Science Ltd, 2016-01)
This contribution presents a two-scale formulation devised to simulate failure in materials with heterogeneous micro-structure. The mechanical model accounts for the nucleation of cohesive cracks in the micro-scale domain. ...
Analysis of the constitutive response of heterogeneous materials by the boundary element method, considering different RVE microstructuresAnálise da resposta constitutiva de materiais heterogêneos pelo método dos elementos de contorno, considerando-se diferentes microestruturas para o EVR
(2020-01-01)
Numerical analyses to model the constitutive response of heterogeneous materials by a Boundary Element Formulation, developed in the context of a RVE-based multi-scale theory, are performed. In this case, the material ...