Abstract
Based on Mindlin's plate theory, a finite element stiffness approach for plate bending which includes transverse shear deformation is presented. Three different rectangular plate finite element models are developed and are used to investigate the importance of plate thickness effect in static and free vibration plate bending problems. One of the proposed displacement fields incorporates transverse shear deformations without increasing the number of nodal quantities beyond that associated with existing (classical plate theory) finite elements. The method is applicable for the analysis of thick plates or slabs which occur in Civil Engineering structures such as power plants or nuclear reactors.
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