Numerical modeling of laser-induced shock experiments for the development of the adhesion test for bonded composite materials. (15th September 2016)

• Record Type: Journal Article
• Authors: Ecault, Romain; Touchard, Fabienne; Boustie, Michel; Berthe, Laurent; Dominguez, Nicolas
• Is Part Of: Composite structures. Volume 152(2016)
• Page Start: 382
• Page End: 394
• Publication Date: 2016-09-15
• Subjects: Shock propagation modeling -- CFRP composites -- Laser-induced shock -- Bonded composites -- Adhesion test -- Bonding quality assessment; Composite construction -- Periodicals; Composites -- Périodiques; 624.18
• DOI: 10.1016/j.compstruct.2016.05.032
• Languages: English
• ISSNs: 0263-8223

Abstract

Abstract: In this work, laser shock experiments on composite material are modeled. Focus is made on the development of a reliable numerical model to be used for the laser shock wave adhesion test of bonded composites. Technique principle is explained as well as the laser shock experiment procedure. Then, the numerical investigations are presented. A calibration method is given to set the model input parameters, and the modeling choices are detailed. Dynamic material parameters are identified thanks to experimental results, and validated through a complete campaign of laser shocks on various carbon fiber reinforced plastic (CFRP) materials (monolithic and bonded). Finally, numerical results for bonded composites are discussed. They enable to understand the stress distribution within the composite assembly during the wave propagation. This is a key step toward the development of a reliable and controlled laser shock adhesion test.