0000000000220698
AUTHOR
Asma Werhani
Thermomechanical Behavior of Beams Covered with Viscoelastic Patches
International audience; Infrared thermography is a non-destructive test method based on infrared measurement that provides a luminance map of the thermal scene observed, converting to temperature. The thermographic study allows a surface observation of the thermal effects in order to display the result as a film of the temperature distribution [1]. The present study focuses on the detection of volumetric energy sources in beams covered by viscoelastic patches.
Étude Du Comportement Thermomécanique De Structures Recouvertes De Patchs Visco-Contraints
International audience; La thermographie infrarouge est une méthode qui permet d'obtenir la carte de luminance de la scène thermique observée, de la convertir en température apparente et d'afficher ou d'enregistrer le résultat sous la forme d'une image de la distribution de la température. Nous l'utilisons ici, pour la détection à distance, des sources d'énergie dans des structures formées de poutres recouvertes de patchs viscoélastiques.
Determination of energy fluxes in composite plates or processed by Vico-constrained damping patch
Lightening structures is an important issue in the world of transport. On the other hand, for the improvement of comfort, increasing performance is demanded today, particularly in the vibratory and acoustic field, which leads to the addition of damping materials. The proposed research work consists in the vibrational optimization of the structures by the addition of viscoelastic patches damping positioned wisely. The main function of the viscoelastic used to improve the vibro-acoustic performances, is to provide a mechanism of dissipation of mechanical energy. This attenuation of noise and vibrations causes a conversion of mechanical energy into thermal energy, which, after diffusion into t…