Bending analysis of composite and sandwich beams using Ritz method

Year 2018, Volume: 19 Issue: 1, 10 - 23, 31.03.2018

Armağan Karamanlı

https://doi.org/10.18038/aubtda.320144

Cited By: 1

Abstract

In the present paper, the bending behaviour of
laminated composite and sandwich beams subjected to various sets of boundary
conditions which are simply supported (SS), clamped-simply supported (CS),
clamped-clamped (CC) and clamped-free (CF) are investigated by using the
Timoshenko beam theory and the Ritz method. In order to solve the problem, the
shape functions for axial, transverse deflections and the rotation of the
cross-section are presented in polynomial forms. The validation and convergence
studies are performed by solving symmetric and anti-symmetric cross-ply
composite beam problems with various boundary conditions and aspect ratios by
adding auxiliary functions to the shape functions. The results in terms of
mid-span deflections, axial and shear stresses are compared with those from
previous studies to validate the accuracy of the present study. The effects of
fiber angle, lay-up and aspect ratio on displacements and stresses are studied. 

Keywords

Composite Beam, Bending, Ritz Method

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