A Three-Node Shear-Flexible Hybrid-Stress Finite Element for the Analysis of Laminated Composite Plates
- 1 October 1988
- journal article
- Published by SAGE Publications in Journal of Thermoplastic Composite Materials
- Vol. 1 (4) , 339-360
- https://doi.org/10.1177/089270578800100403
Abstract
A cost-effective, shear-flexible hybrid-stress element is developed for lami nated composite plates based on the Yang-Norris-Stavsky theory. The element is triangular and has vertex nodes only. The nodal variables are three displacements and two indepen dent normal rotations of C° type. The assumed stress field is linear. The assumed displace ment field is based on the anisoparametric interpolations in which the rotations and in- plane displacements are linear and the transverse displacement is quadratic. The element is invariant and non-locking. The results of the numerical studies show that the present el ement converges rapidly and monotonically in all thickness regimes.Keywords
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