摘要
A creep buckling analysis of orthotropic viscoelastic thin plates,simply-supported all around, is given. In order to simulate the real condi-tions, the relaxation time of modulus in different pripeipal material orienta-tions is arbitrary in the constitutive equations of the plates. In deriving the as-sociated governing equations, transverse shear deformations are incorporated-By means of theoretical analysis, the instantaneous critical load and durablecriticaI load are obtained. In the example, a time incremental method is usedfor the first time to calculate the creep deformation of the viscoelastic plateswith initial imperfection, subjected to a constant compressive load for a longtime.
A creep buckling analysis of orthotropic viscoelastic thin plates,simply-supported all around, is given. In order to simulate the real condi-tions, the relaxation time of modulus in different pripeipal material orienta-tions is arbitrary in the constitutive equations of the plates. In deriving the as-sociated governing equations, transverse shear deformations are incorporated-By means of theoretical analysis, the instantaneous critical load and durablecriticaI load are obtained. In the example, a time incremental method is usedfor the first time to calculate the creep deformation of the viscoelastic plateswith initial imperfection, subjected to a constant compressive load for a longtime.
