INVESTIGATION TO THE BUCKLING AND POSTBUCKLING BEHAVIOUR OF SHEAR-FLEXIBLE PLAIES OF COMPOSITE CON5TRUCTION
复合结构剪切板的屈曲与后屈曲研究

The generalized Karman equations governing large defiection of shear-flexible plates of composite construction are developed and discussed. Progress hajs thusbeen made in extension of soine theoretical modelings to include more complicated materialproperties based upon the shear deformable plate theory of Reissner type.An asymp-totic expansion is constructed by the perturbation technique proposed for the postbucklingbehaviour of simply supported rectangular plates of composite construction.This approxi-mation may apply in a variety of sandwiches with both orthotropic facings and cores as wellas symmetrically laid laminates taking account of transverse shear deformation.Typicalnumerical examples are presented for the purpose of comparison of the present results withother analytical and computational predictions.It has been demonstrated from observationthat a fairly good agreement is achieved.