Analytical modeling and investigation of constrained layer damping in hybrid laminates based on a unified plate formulation

Hybrid laminates, such as fiber metal are increasingly used in engineering applications due to their outstanding damage tolerance and weight-specific performance. Prone vibrations, laminates have recently been complemented by viscoelastic elastomer layers order achieve a desired level of damping following the principles constrained layer damping. This paper presents an analytical modeling approach based on unified plate formulation for rapid precise analysis hybrid regarding deformation dynamic behavior. In account transverse shear layers, Reissner’s Mixed Variational Theorem is employed. The viscoelastic, thus frequency-dependent, material behavior taken into resulting quantities analyzed. Damped undamped natural frequencies computed using iterative algorithm results compared plate’s response forced vibration. numerically validated refined finite element models. Additionally, laminate parameters varied investigate influence capabilities these laminates.