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Piezoelectric-piezomagnetic behaviour of coated long fiber composites accounting for eigenfields

Type
Articles dans des revues avec comité de lecture
Auteur
CHATZIGEORGIOU, George
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
BENAARBIA, Adil
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
MERAGHNI, Fodil
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]

URI
http://hdl.handle.net/10985/16715
DOI
10.1016/j.mechmat.2019.103157
Date
2019
Journal
Mechanics of Materials

Résumé

A unified micromechanical approach is proposed to evaluate the electro-magneto-mechanical response of coated long fiber composites with transversely isotropic piezoelectric-piezomagnetic behaviour. The developed framework takes into account the presence of electro-magneto-mechanical eigenfields. The multiscale strategy is based on solving specific boundary value problems in the same spirit as in the Composite Cylinders Assemblage technique. The solution of these problems provides analytical expressions of the dilute electro-magneto-mechanical concentration tensors. With the help of the latter, the mean-field approach of Mori-Tanaka is adapted to identify i) the overall response of the composite, and ii) the various average electro-magneto-mechanical fields generated in the matrix, the fiber and the coating layers for known macroscopic fields. It is found that the novel approach has the same accuracy as existing homogenization techniques in terms of electro-magneto-mechanical properties. The ability of the proposed model to predict both macroscopic and average microscopic fields per phase when eigenfields take place is finally demonstrated.

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Fin d'embargo:
2020-05-01
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  • Multiscale modeling accounting for inelastic mechanisms of fuzzy fiber composites with straight or wavy carbon nanotubes 
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  • A fully coupled thermo-viscoelastic-viscoplastic-damage framework to study the cyclic variability of the Taylor-Quinney coefficient for semi-crystalline polymers 
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    In the present work, a rigorous and consistent thermo-viscoelastic-viscoplastic ductile damage model is proposed to address the variability of the Taylor-Quinney coefficient (the storage to anelastic energy rate ratio) ...
  • Non-linear FE2 multiscale simulation of damage, micro and macroscopic strains in polyamide 66-woven composite structures: analysis and experimental validation 
    TIKARROUCHINE, El-Hadi; BENAARBIA, Adil; CHATZIGEORGIOU, George; MERAGHNI, Fodil (Elsevier BV, 2020)
    This paper presents an experimental approach aimed at analyzing and validating a two-scale nonlinear Finite Element (FE 2 ) simulation of a 3D composite structure. The studied composite material consists of polyamide ...
  • Three-dimensional FE2 method for the simulation of non-linear, rate-dependent response of composite structures 
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    In this paper, a two scale Finite Element method (FE2 ), is presented to predict the non-linear macroscopic response of 3D composite structures with periodic microstructure that exhibit a time-dependent response. The ...
  • Phase Transformation of Anisotropic Shape Memory Alloys: Theory and Validation in Superelasticity 
    CHATZIATHANASIOU, Dimitris; CHEMISKY, Yves; MERAGHNI, Fodil; CHATZIGEORGIOU, George; PATOOR, Etienne (Springer, 2015)
    In the present study, a new transformation criterion that includes the effect of tension–compression asymmetry and texture-induced anisotropy is proposed and combined with a thermodynamical model to describe the thermomechanical ...

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