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C. Adam, R. Heuer, F. Ziegler:
"Composite beams with interlayer slip";
in: "Recent Advances in Applied Mechanics, Honorary Volume for Professor A.N. Kounadis", J.T. Katsikadelis, D.E. Beskos, E.E. Gdoutos (ed.); National Technical University of Greece, 2000, (invited), 3 - 10.

Vibrations of composite visco-elastic two-layer beams with interfacial slip are analyzed. Geometrically linearized conditions are considered, and the Bernoulli-Euler hypothesis is applied to either layer, respectively. At the (physical) interface a linear visco-elastic slip law is assigned. The resulting sixth-order initial-boundary value problem of the deflection is solved in the time domain by separating the dynamic response in a quasistatic and in a complementary dynamic portion. The quasistatic solution is determined in closed form, and the remaining complementary dynamic part is approximated by a truncated modal series of accelerated convergence.