Analysis of mechanical postbuckling behavior of functionally graded beams

Abstract

Abstract: Based on the first-order shear deformation theory, the post-buckling behavior of functionally gradient beams under axial loading is investigated in this paper. The basic equation for nonlinear static problem of functionally gradient beam is derived and an accurate solution to post-buckling is obtained. By using the accurate solutions herein obtained, effects of various factors such as material gradients, applied loading, transverse shear deformation and boundary conditions on post-buckling behaviors of functionally graded material beams have been investigated. The results obtained show that properties of gradient material, transverse shear deformation and different boundary conditions have significant effects on the post-buckling characteristics of functionally gradient material beams.

Key words: first order shear deformation beam theory, functionally graded materials, post-buckling, axial load, exact solution

CLC Number:

O346.1

MA Lian-sheng, JIA Jin-zheng. Analysis of mechanical postbuckling behavior of functionally graded beams[J]. Journal of Lanzhou University of Technology, 2020, 46(3): 160-164.

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