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Communication Dans Un Congrès Année : 2020

Attenuation of Zero-Group-Velocity Lamb modes for the nondestructive evaluation of adhesive bonding

Romain Hodé
  • Fonction : Auteur
Nicolas Cuvillier
  • Fonction : Auteur
Mathieu Ducousso
  • Fonction : Auteur
  • PersonId : 1099756

Résumé

The non-destructive evaluation of adhesive bonding is a major issue in the aeronautical industry. Indeed, this assembly technique has many advantages compared to more conventional ones (riveting?): it allows lighter aircraft structures and therefore reduces fuel consumption and emissions. Furthermore, a better stress distribution can be achieved between assembled parts. Nevertheless, the significant deployment of this assembly technique is currently limited by the nonexistence of a method to certify the practical adhesion without damaging the structure. In the past 50 years, a large number of non-destructive methods have been investigated to measure bond strength quantitatively [1]. Concerning ultrasonic techniques, various approaches based on the reflection or the transmission of bulk waves at an imperfect interphase have been studied [2-3]. Other methods based on guided waves have been considered: shear horizontal modes [4], Lamb modes [5] (especially Zero-Group-Velocity (ZGV) modes [6]). In this research project, a laser ultrasonic method is proposed to non-destructively evaluate the adhesive bonding of plates. ZGV resonances are generated and detected experimentally on trilayer samples [alu. (1.5 mm-thick)/epoxy/alu. (3.0 mm-thick)]. The practical adhesion of these different assemblies is degraded by cohesive and adhesive defects. The temporal attenuations of these ZGV modes allow to discriminate the different samples. Moreover, quantitative parameters linked to the damping of ZGV resonances are identified. <latex>1. M.D. Bode \textitet al., \textitLiterature review of weak adhesive bond fabrication and nondestructive inspection for strength measurement (U.S. Departement of Transportation, Washington, DC, 2015). 2. A. Baltazar \textitet al., J. Acoust. Soc. Am. \textbf114 (3), 1424 (2003). 3. E. Syriabe \textitet al., Ultrasonics \textbf79, 34 (2017). 4. B. Le Crom and M. Castaings, J. Acoust. Soc. Am. \textbf127 (4), 2220 (2010). 5. M.J.S. Lowe \textitet al., J. Acoust. Soc. Am. \textbf107 (3), 1333 (2000). 6. S. Mezil \textitet al., J. Acoust. Soc. Am. \textbf138 (5), 3202 (2015).</latex>
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Dates et versions

hal-03240236 , version 1 (12-06-2021)

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Romain Hodé, Samuel Raetz, Vitali Goussev, Nicolas Cuvillier, Mathieu Ducousso, et al.. Attenuation of Zero-Group-Velocity Lamb modes for the nondestructive evaluation of adhesive bonding. Forum Acusticum, Dec 2020, Lyon, France. pp.2561-2561, ⟨10.48465/fa.2020.0268⟩. ⟨hal-03240236⟩
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