No full text
Unpublished conference/Abstract (Scientific congresses and symposiums)
A coupled electro-thermo-mechanical discontinuous Galerkin method applied on composite materials
Homsi, Lina; Noels, Ludovic
201615th edition of the European Mechanics of Materials Conference (EMMC15)
 

Files


Full Text
No document available.
Annexes
EMMC15.pdf
Publisher postprint (2.78 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Discontinuous Galerkin; Coupled problems; Electro-Thermo-Mechanical
Abstract :
[en] Carbon fiber reinforced polymer composites have become increasingly important due to their unique properties which are appreciated in many practical applications such as low weight, low cost, low density, high mechanical characteristics. Moreover the range of their electrical conductivity can be controlled by the amount of carbon fibers. Carbon fiber reinforced polymer composites consist of at least two components, a polymer matrix (generally dielectric) and electrically conductive fillers. This combination results in multifunctional composites, both structural and conductive. The existence of the polymer matrix will avoid catastrophic failure due to fiber breaking, and the existence of the carbon fibers will enhance strength and stiffness on one hand, and will allow to a significant temperature gradient when electric current is applied on the other hand. The objective of this paper is to study the response of the carbon fiber reinforced polymer composites when an electric power is applied and to determine the effective properties. To this end governing equations describing electro-thermo-mechanical coupling in composite materials are developed and discretized using the Discontinuous Galerkin (DG) finite element method. DG methods have many advantages such as optimal convergence and local approximation properties in addition to their flexibility for mesh adaption and their straightforward use of high order polynomial approximations. A micromechanical model of unidirectional carbon fibers dispersed in a polymer matrix is formulated considering the interaction of electrical, thermal and mechanical fields It is then solved using the DG method to determine the time dependent response of the electro-thermo-mechanical coupling and quantify the variation of the fields.
Disciplines :
Mechanical engineering
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Homsi, Lina ;  Université de Liège - ULiège > Form. doct. sc. ingé. & techno. (aéro. & mécan. - Paysage)
Noels, Ludovic  ;  Université de Liège > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3)
Language :
English
Title :
A coupled electro-thermo-mechanical discontinuous Galerkin method applied on composite materials
Publication date :
07 September 2016
Event name :
15th edition of the European Mechanics of Materials Conference (EMMC15)
Event organizer :
European Mechanics Society (Euromech)
Event place :
Brussels, Belgium
Event date :
7-9th September 2016
Audience :
International
Name of the research project :
This project has been funded with support of the European Commission. This publication (communication) reflects the view only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.
Funders :
DG EAC - Commission Européenne. Direction Générale de l'Éducation et de la Culture [BE]
Available on ORBi :
since 12 September 2016

Statistics


Number of views
88 (14 by ULiège)
Number of downloads
61 (9 by ULiège)

Bibliography


Similar publications



Contact ORBi