Acoustic emission analysis of a laminate under a different loading rate

Imen Ben Ammar , Abderrahim El Mahi (1) , Chafik Karra , Rachid El Guerjouma (1) , Mohamed El Haddar

1 LAUM - Laboratoire d'Acoustique de l'Université du Mans

The aim of this work is the identification with acoustic emission and the analysis of the damage mechanisms of a cross-laminated. A different laminate composed of epoxy resin and reinforced with glass fibers (GFRP), carbon fibers (CFRP) and hybrid fibers (HFRP) are considered. Static tests were performed, to study the influence of stacking sequence of laminates, the effect of thickness of 90° layers of fibers on behavior and the evolution of damage mechanisms. The specimens are solicited in buckling and traction tests. The acoustic signatures corresponding to the various damage mechanisms from material (matrix cracking, interfacial debonding...) are identified and their chronologies of appearances during the buckling and traction tests of the specimens are followed.

Domaines: Acoustique [physics.class-ph]

Imen Ben Ammar, Abderrahim El Mahi, Chafik Karra, Rachid El Guerjouma, Mohamed El Haddar. Acoustic emission analysis of a laminate under a different loading rate. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00811328⟩