The partial hybrid stress method is applied to the Mindlin plate theory for orthotropic composite plates. The displacement formulation is adopted in the flexurel part and the hybrid formulation in the transverse shear part. Since the interface traction discontinuity is overcome, the present element performs much better than the displacement-based method. Although only the stress parameters in transverse shear part are required, the accuracy approaches that of the conventional hybrid method, The governing equations of plate are also derived from the modified Hellinger-Reissner variational principle.
關聯:
Microcomputers in Civil Engineering 6(3), pp.217-227
