BANQUE INTERNATIONALE DE SUJETS DE THESE

Ecole Doctorale : MEGEP - Mécanique, Energétique, Génie civil, Procédés

Thermo-mechanical behaviour of multidirectionnal composite structures under multiaxial fatigue loading
n°274

Encadrant de thèse :
Clement KELLER
Adresse mail :
clement.keller@enit.fr
Laboratoire de rattachement :
LGP - Laboratoire Génie de Production
Adresse du site internet du laboratoire :
https://www.lgp.enit.fr/fr/lgp.html
Directeur de laboratoire :
 Olivier DALVERNY
Adresse mail :
 olivier.dalverny@uttop.fr
École Doctorale :
 EDMEGEP
PAYS :
Chine
Langue de la thèse :
anglais ,

Directeur de thèse :
Clement KELLER

Site Internet : https://www.lgp.enit.fr/fr/lgp.html
Descriptif : Composite materials are becoming increasingly important in the aerospace, sport, automotive and transportation sectors. Their application allows not only the improvement of mechanical performance of the structures with regard to its weight, but also the integration of functions in structures. In service, these structures are usually subjected to cyclic mechanical stresses resulting in, generally, multi-axial stress states, causing damage such as fiber-matrix decohesion at the fiber scale, micro-voids in the ply or even in the interlaminar zone. The evolution of these damages with the applied stress cycles leads to mesoscopic and macroscopic damages such as matrix cracking, local and global delamination as well as fibre breakage. The objective of the PhD is to investigate the influence of a biaxial mechanical loading on the fatigue life of composite materials taking into account thermomechanical couplings.

Publications relatives au sujet :
J. Huang, ML Pastor, C. Garnier, XJ Gong. Rapid evaluation of fatigue limit on thermographic data analysis. International Journal of Fatigue 104 (2017) pp293–301.
Zijiao Jia, Marie-Laetitia Pastor, Christian Garnier, Xiaojing Gong. A new method for determination of fatigue limit of composite laminates based on thermographic data. International Journal of Fatigue, 2022: 107445.

Mots clés : Composite materials ;fatigue ;damage mechanisms ;thermomechanical couplings ;biaxial testing ;

Collaboration avec un laboratoire : LGP - Laboratoire Génie de Production
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