Modelling of Vibrations of Laminated Shells with a Complicated Plan Shape at Impact Loading

Abstract

The paper presents the method for analysis of non-stationary vibrations of laminated non-closed cylindrical shells with a complicated shape in plan view at impact loading. The method is based on expansion of the sought-for functions into trigonometrical series. Dynamical behavior of shells is investigated within the framework of the first order theory accounting to transverse shear strains, compression on width and normal element rotation inertia in each layer. Model of impact interaction is based on the Hertzian contact law. Vibrations of a five-layer shell are considered. The theoretical results are consistent with experimental data.