High-order theory of multilayer plates. The impact problem

The high-order theory of multilayer plates is presented in this paper. The model is based on the hypothesis of the nonlinear dependence of displacements on the transverse coordinate in each layer. The strains in each layer are taken into account. The feasibility of the theory is shown by example of the problem of a ball impacting a multilayer plate. The numerical results are compared with experimental data. The suggested theory is also compared with the Timoshenko type theory. The advantage of the suggested model is demonstrated for the case of localized loads action. ~ 1998 Elsevier Science Ltd. All rights reserved.