Dynamic analysis of orthotropic shells by the grid-characteristic method

Abstract

The objective of this paper is to produce the dynamic analysis of orthotropic shells by a grid-characteristic method. The main advantages of composite structures are high specific strength, stiffness and anisotropic properties which can be utilised to optimise mechanical behaviour. At the same time the increase in stiffness and decrease in mass emphasise vibrating problems, thus the prediction of composite structure dynamic behaviour is a very topical subject. The analysis produced in this work is supported by the development of the explicit finite-difference method based on the utilisation of quasi-linear hyperbolic system of equations and combined with the special splitting procedure. The method has been implemented to the dynamic analysis of composite cylindrical shell. Numerical results of the dynamic response analysis demonstrated high efficiency and computational stability of the algorithm.