Viscoelastic wave propagation and resonance in a metal–plastic bonded laminate

Stress wave propagation in a metal–plastic bonded laminate immersed fluid is investigated based on linear viscoelastic theory. The reflection spectrum theoretically derived for normal incidence. For the incidence from plastic layer, amplitude of shown to have local minima at resonance frequencies every single layer. Resonance metal layer leads destructive interference reflected components, while appears due its damping. Experimental results obtained specimens are discussed viewpoint characterization dissimilar joints.