On the Stationary Creep in Plate Bending Problems

Abstract

The plate bending problem in the stationary creep state was investigated by means of the finite element method. The Stationary creep problem was transformed into a non linear elastic problem in accordance with the HOFFS' analogy and a REISSNER type variational principle was formulated. Based on the above-mentioned principle, the finite element method was applied to the plate bending problem and a computer program was made to solve the bending problem of arbitrary shape plate subjected to arbitrary load. The bending moment and stationary creep strain rate were calculated for circular and rectangular plates under uniform loading. The results obtained here for circular plates show a good agreement with the results calculated by using the RUNGE-KUTTA method.