THE SOLUTION OF RECTANGULAR PLATES WITH LARGE DEFLECTION BY SPLINE FUNCTIONS

In this paper,Von Kármán’s set of nonlinear equations for rectangular plates withlarge deflection is divided into several sets of linear equations by perturbation method,thedimensionless center deflection being taken as a perturbation parameter.These sets of linearequations are solved by the spline finite-point(SFP)method and by the spline finiteelement(SFE)method.The solutions for rectangular plates having any length-to-widthratios under a uniformly distributed load and with various boundary conditions arepresented,and the analytical formulas for displacements and deflections are given in thepaper.The computer programs are worked out by ourselves.Comparison of the results withthose in other papers indicates that the results of this paper are satisfactorily better.     

The solution of rectangular plates with large deflection by spline functions

In this paper, Von Karman ’s set of nonlinear equations for rectangular plates with large deflection is divided into several sets of linear equations by perturbation method, the dimensionless center deflection being taken as a perturbation parameter. These sets of linear equations are solved by the spline finite-point (SFP) method and by the spline finite element (SFE) method. The solutions for rectangular plates having any length-to-width ratios under a uniformly distributed load and with various boundary conditions are presented, and the analytical formulas for displacements and deflections are given in the paper. The computer programs are worked out by ourselves. Comparison of the results with those in other papers indicates that the results of this paper are satisfactorily better.