Nonlinear bending analysis of stiffened ruled spherical shell surfaces

Abstract

In this report ,a nonlinear finite element solutions of bending responses of functionally graded spherical panels are presented. the material properties of functionally graded material are graded in thickness direction in line with a power-law distribution of volume fractions. A general nonlinear mathematical shell model has been developed based on higher order shear deformation theory. The model is discretised using finite element steps and the governing equations are obtained through variational principle. The nonlinear responses area unit evaluated through an on the spot unvarying methodology. The model is validated by comparing the responses with the vailable published literatures. The efficacy of gift model has also been established by demonstrating a simulation based nonlinear model developed in ABAQUS environment. the effects of power-law indices, support conditions and different geometrical parameters on bending behaviour of functionally graded shells are obtained and discussed in detail.