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Development of the symmetrical laser shock test for weak bond inspection

Article dans une revue avec comité de lecture
Author
SAGNARD, Maxime
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
ECAULT, Romain
118112 Institut Pprime [UPR 3346] [PPrime [Poitiers]]
244009 Airbus Group Innovations [Suresnes]
BERTHE, Laurent
428 Laboratoire pour l'application des lasers de puissance [LALP]
14421 Laboratoire d'Ingénierie des Matériaux [LIM]
31214 Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] [LaMCoS]
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
BRUNE, Kay

URI
http://hdl.handle.net/10985/14637
DOI
10.1016/j.optlastec.2018.10.052
Date
2019
Journal
Optics and Laser Technology

Abstract

This study aims to assess the capability of the LAser Shock Adhesion Test to detect weak bonds in assemblies made of carbon fibre reinforced polymer laminates as well as understand the behaviour of different bonded composite structure under a shock load. A specific setup based on symmetrical laser shocks has been used. After each test, ultrasounds are used to determine if the bond has been damaged or not. At first, samples with two contaminants - de-icing fluid and finger prints - were studied. Then, the bond quality of two partially contaminated aircraft parts were investigated. These original results demonstrate the efficiency of the symmetrical laser shocks method as a Non-Destructive Test for bonded carbon fibre reinforced polymer assemblies.

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