Displacements and Stresses in Pressurized Thick FGM Cylinders with Varying Properties of Power Function Based on HSDT
عنوان مقاله: Displacements and Stresses in Pressurized Thick FGM Cylinders with Varying Properties of Power Function Based on HSDT
شناسه ملی مقاله: JR_JSMA-4-3_002
منتشر شده در در سال 1391
شناسه ملی مقاله: JR_JSMA-4-3_002
منتشر شده در در سال 1391
مشخصات نویسندگان مقاله:
M Ghannad - Department of Mechanical Engineering, Shahrood University of Technology
H Gharooni - Department of Mechanical Engineering, Shahrood University of Technology
خلاصه مقاله:
M Ghannad - Department of Mechanical Engineering, Shahrood University of Technology
H Gharooni - Department of Mechanical Engineering, Shahrood University of Technology
Using the infinitesimal theory of elasticity and analytical formulation, displacements and stresses based on the high-order shear deformation theory (HSDT) is presented for axisymmetric thick-walled cylinders made of functionally graded materials under internal and/or external uniform pressure. The material is assumed to be isotropic heterogeneous with constant Poisson’s ratio and radially varying elastic modulus continuously along the thickness with a power function. At first, general governing equations of the FGM thick cylinders are derived by assumptions of the high-order shear deformation theory. Following that, the set of non-homogenous linear differential equations with constant coefficients, for the cylinder under the generalized clamped-clamped conditions have been solved analytically and the effect of loading and inhomogeneity on the stresses and displacements have been investigated. The results are compared with the findings of both first-order shear deformation theory (FSDT) and finite element method (FEM). Finally, the effects of higher order approximations on the stresses and displacements have been studied.
کلمات کلیدی: Thick cylinders, Shear deformation theory, FGM, HSDT, FEM
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1730589/