Stabilization of the laminated beams by internal and boundary dampings

In this paper, we consider a laminated beam model which is given by two identical uniform layers on top of each other, taking into account that an adhesive of small thickness is bonding the two surfaces and produces an interfacial slip. With one internal frictional or viscoelastic damping in the second equation and one boundary damping modulated by time-dependent coefficients, we establish uniform stability results without imposing any conditions on the physical parameters of the system.