ISEC 08


SHEAR STRAIN SAMPLING POINTS OF PLATE ELEMENT FROM DESIRABLE DISPLACEMENT FIELDS AND MIXED FINITE ELEMENTS

TEERAPON KOWSUWAN, VANISSORN VIMONSATIT


Abstract

A newly developed four-node bilinear plate element based on linked interpolation and Desirable Displacement Field (DDF) concept is formulated for the analysis of general plate problems. The proposed element is formulated on a mixed finite element for Reissner-mindlin plate theory and transverse displacement is linked to the rotation degree of freedom to ensure high-order interpolation capacity. By assumed strain method, the DDF is introduced for the investigation of strain sampling points. A high order polynomial for transverse displacement with linking shape function is used in finite element discretization to provide a better solution for the plate problems. A number of commonly selected problems will be tested using the present element to compare with other element models in the open literature to assess their relative convergence and accuracy.

Full Text (PDF)