Mixed variational formula for the thermal bending of laminated plates

A mixed variational formula based upon Hamilton's principle is obtained including the thermomechanical action of composite structures. Based on this formula, a linear thermomechanical composite plate model is presented. The model accounts for a Mindlin-type assumption on displacements and stresses in consistence with general surface conditions. So the rationale for the shear correction factor is obviated. Governing equations of orthotropic composite 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 results are in good agreement with the results of others.