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Composite plate analysis using a new discrete shear triangular finite element
Author(s) -
Lardeur P.,
Batoz J. L.
Publication year - 1989
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620270209
Subject(s) - orthotropic material , finite element method , shear (geology) , transverse shear , vibration , structural engineering , extended discrete element method , composite number , mathematics , geometry , mathematical analysis , mixed finite element method , engineering , finite element limit analysis , materials science , physics , composite material , algorithm , acoustics
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.