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Multiscale modeling of imperfect interfaces and applications

Dumont, Serge and Lebon, Frédéric and Raffa, Maria Letizia and Rizzoni, Raffaella and Welemane, Hélène Multiscale modeling of imperfect interfaces and applications. (2016) In: Computational Methods for Solids and Fluids - Multiscale Analysis, Probability Aspects and Model Reduction. (Computational Methods in Applied Sciences). Springer, 81-122. ISBN 978-3-319-27994-7

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Official URL: http://dx.doi.org/10.1007/978-3-319-27996-1_5

Abstract

Modeling interfaces between solids is of great importance in the fields of mechanical and civil engineering. Solid/solid interface behavior at the microscale has a strong influence on the strength of structures at the macroscale, such as gluing, optical systems, aircraft tires, pavement layers and masonry, for instance. In this lecture, a deductive approach is used to derive interface models, i.e. the thickness of the interface is considered as a small parameter and asymptotic techniques are introduced. A family of imperfect interface models is presented taking into account cracks at microscale. The proposed models combine homogenization techniques for microcracked media both in three-dimensional and two-dimensional cases, which leads to a cracked orthotropic material, and matched asymptotic method. In particular, it is shown that the Kachanov type theory leads to soft interface models and, alternatively, that Goidescu et al. theory leads to stiff interface models. A fully nonlinear variant of the model is also proposed, derived from the St. Venant-Kirchhoff constitutive equations. Some applications to elementary masonry structures are presented.

Item Type:Book Section
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Uncontrolled Keywords:
Institution:Other partners > Aix-Marseille Université - AMU (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Ecole Centrale Marseille (FRANCE)
Other partners > Università degli Studi di Ferrara - UNIFE (ITALY)
Other partners > Université de Nîmes (FRANCE)
Other partners > Università degli Studi di Roma "Tor Vergata" (ITALY)
Laboratory name:
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Deposited By: Helene Welemane
Deposited On:28 Feb 2017 15:46

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