Mixed variational formula for the thermal bending of laminated plates

A mixed variational formula based upon Hamilton's principle is obtained inc luding the thermomechanical action of composite structures. Based on this f ormula, a linear thermomechanical composite plate model is presented. The m odel accounts for a Mindlin-type assumption on displacements and stresses i n consistence with general surface conditions. So the rationale for the she ar correction factor is obviated. Governing equations of orthotropic compos ite plates subjected to thermal and mechanical loading are derived. A wide variety of results are presented. The validity of the model is demonstrated by comparison with solutions available in the literature. The present resu lts are in good agreement with the results of others.