Abstract
Triangular finite element models are presented for the large displacement bending and postbuckling analysis of thin plates. The formulation is based upon a general variational theory which offers a wide scope for the selection of valid finite element trial functions. This makes it feasible to model the particular physical actions crucial to the successful calculation of large displacement behaviour. In this paper it is demonstrated by numerical examples that a notable improvement in performance is achieved, without a significant increase in computational effort, when simple inextensional bending deformations are included explicitly in the finite element trial functions.
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