In order to study the bending performance of the sand sandwich board,the bending balance equation of the sand sandwich board was established by using the theory of higher-order shear deformation and the principle of generalized virtual displacement,and the bending deformation of the sand sandwich board was solved by double Fourier series meth-od.This paper analyzed the mid-point deflection of the sand sandwich plate under the transverse uniform load under the condition of four-sided simply supported boundary,and compared the influence of three theories,namely Reissner theory,Hoff theory and high-order shear deformation theory,on the calculation of the mid-point deflection of the sand sandwich plate under the condition of different elastic modulus and thickness of the sandwich layer.The results show that the pro-posed method is more suitable for the study of flexural properties of sandwich wall panels.At the same time,the finite ele-ment model of the sand sandwich plate was established,and the deflection and stress of the bending deformation of the sand sandwich plate at x=a/2 and y=b/2 were calculated.The effectiveness of the proposed method is further verified by comparing with the proposed method.
NETL
NSTL
万方数据
