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 appro...

We present an approach for obtaining a molecular orbital picture of the first dipole hyperpolarizability (β) from correlated many-body electronic structure methods. Ab initio calculations β rely on quadratic response theory, which recasts sum-over-all-states expression into closed-form by calculating handful first- and second-order states; resonantly enhanced β, damped theory is used. These sta...