engleski

A new quadrilateral thick plate element based on a pure displacement linked interpolation

In this work the use of linked interpolation in the design of plate finite elements is analysed. Benefits of the linked interpolation are well known in the Timoshenko (thick) beam finite elements and the basis for development of a family of the Mindlin plate elements presented in this paper is found in the analogy between the Timoshenko beam theory and the Mindlin plate theory. In contrast to the beam elements, the linked interpolation in plate elements cannot completely reproduce the analytical solution, not even for the relatively simple load cases. The results obtained in this are compared and numerically assessed against the reference results from literature using various mesh densities and various order of interpolation.

Finite element method ; Mindlin plate theory ; linked interpolation ; higher-order interpolation

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