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A semi-analytical finite element for laminated composite plates

Research output: Contribution to journalJournal article

Published

Journal publication date07/2002
JournalComposite Structures
Journal number1-4
Volume57
Number of pages7
Pages117-123
Original languageEnglish

Abstract

This paper presents a semi-analytical finite element solution for laminated composite plates. The method is based on a mixed variational principle that involves both displacements and stresses. Finite element meshes are only used in the plane of plate, while the through thickness distributions of displacements and stresses are obtained using the method of state equations. Numerical results show that the rate of convergence of the new method is fast and the solutions can be very close to corresponding exact three-dimensional ones. The use of a recursive formulation of the state equations leads to an algebra equation system, from which solution are sought, whose dimension is independent of the numbers of layers of the plate considered.