RESEARCH ARTICLE


An Interface Model Including Cracks and Roughness Applied to Masonry



Fazia Fouchala, Frédéric Lebonb*, b, Maria L. Raffab, c, Giuseppe Vairoc
1 GEMH, Centre Universitaire de Génie Civil, Boulevard Jacques Derche, 19300 Egletons, France
2 LMA, Aix-Marseille University, CNRS, Centrale Marseille, 31 Chemin Joseph-Aiguier, F-13402 Marseille Cedex 20, France
3 Department of Civil Engineering and Computer Science (DICII), University of Rome “Tor Vergata”, via del Politecnico 1, 00133 Rome, Italy


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Creative Commons License
© 2014 Fouchal et al;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the LMA, Aix-Marseille University, Cnrs, Centrale Marseille, 31 Chemin Joseph-Aiguier, F-13402 Marseille; Tel: +33(0)491164051; Fax: +33(0)491164481; E-mail: lebon@lma.cnrs-mrs.fr


Abstract

In this paper an interface model accounting for roughness and micro-cracks is presented and applied to masonry-like structures. The model is consistently derived by coupling a homogenization approach and arguments of asymptotic analyses. A numerical procedure is introduced and numerical results, based on a finite element formulation, are successfully compared with experimental data , obtained on masonry samples undergoing to shear tests. Finally, a parametric numerical analysis is proposed, highlighting the influence of the roughness features on the interface response.

Keywords: Asymptotic analysis, masonry structures micro-cracks, roughness, soft interface.