Thermal buckling analysis of skew fibre-reinforced composite and sandwich plates using shear deformable finite element models

The paper considers the elastic buckling of skew fibre-reinforced composite and sandwich plates subjected to thermal loads. To the best of the authors ' knowledge, there is no paper in the open literature on this subject and t he present paper attempts to fill this gap. Two shear deformable finite ele ment models, one based on first-order shear deformation theory and the othe r based on higher-order shear deformation theory, are employed to obtain th ermal buckling solutions. Extensive numerical results are presented for bot h thin and thick laminated composite plates with various skew angles, lamin ation parameters and boundary conditions. A few results for skew sandwiches are obtained for various geometric parameters and skew angles. Results pre sented, not available so far, could be useful to designers and researchers who may use them as benchmark values to validate their numerical techniques and software for similar problems. (C) 2000 Elsevier Science Ltd. All righ ts reserved.