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Composite plate analysis using a new discrete shear triangular finite element

1989; Wiley; Volume: 27; Issue: 2 Linguagem: Inglês

10.1002/nme.1620270209

1097-0207

Pascal Lardeur, J. L. Batoz,

Structural Engineering and Vibration Analysis

Abstract This paper deals with the static and dynamic (free vibrations) analysis of plates built up with a symmetric series of orthotropic layers. The formulation of a new simple triangular finite element having three nodes and three degrees of freedom per node is presented. The element called DST (Discrete Shear Triangle) is free of shear locking and has a proper rank. It coincides with DKT (Discrete Kirchhoff Triangle) when the transverse shear effects are negligible. A large number of classical problems is considered to evaluate the performance of the element for the analysis of composite plates. Very satisfactory results are obtained for displacements, stresses and frequencies.