1. Finite element formulation of a refined plate theory for laminated composite plates.
- Author
-
Thai, Huu-Tai and Choi, Dong-Ho
- Subjects
FINITE element method ,LAMINATED materials ,COMPOSITE materials research ,MECHANICAL buckling ,MECHANICAL vibration research - Abstract
A new four-node quadrilateral plate that accounts for shear deformation effect and all couplings from the material anisotropy is developed for laminated composite plates. Lagrangian linear interpolation functions are used to describe the primary variables corresponding to the in-plane displacements, while Hermitian cubic interpolation functions are considered for the transverse displacement. Since the present element is derived based on a refined plate theory that has strong similarity with the classical plate theory, it is capable of modeling both thin and very thick plates without shear locking. The accuracy of the present formulation is verified by comparing the results obtained with those available in the open literature. Numerical results are presented to investigate the effects of thickness ratio, lamination angle and lay-up on the shear deformation and response of laminates. [ABSTRACT FROM PUBLISHER]
- Published
- 2014
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