Experimental and numerical investigations of shock and shear wave propagation induced by femtosecond laser irradiation in epoxy resins

Article dans une revue avec comité de lecture
Auteur
ECAULT, Romain
BERTHE, Laurent
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
TOUCHARD, Fabienne
118112 Institut Pprime [UPR 3346] [PPrime [Poitiers]]
BOUSTIE, Michel
118112 Institut Pprime [UPR 3346] [PPrime [Poitiers]]
LESCOUTE, Emilien
119523 DAM Île-de-France [DAM/DIF]
SOLLIER, Arnaud
119523 DAM Île-de-France [DAM/DIF]
VOILLAUME, Hubert
244009 Airbus Group Innovations [Suresnes]

URI
http://hdl.handle.net/10985/9902
DOI
10.1088/0022-3727/48/9/095501
Date
2015
Journal
Journal of Physics D: Applied Physics

Résumé

In this work, original shock experiments are presented. Laser-induced shock and shear wave propagations have been observed in an epoxy resin, in the case of femtosecond laser irradiation. A specific time-resolved shadowgraphy setup has been developed using the photoelasticimetry principle to enhance the shear wave observation. Shear waves have been observed in epoxy resin after laser irradiation. Their propagation has been quantified in comparison with the main shock propagation. A discussion, hinging on numerical results, is finally given to improve understanding of the phenomenon.

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