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1 Journal of Theoretical and Applied Mechanics

1 2018

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Bending, buckling and free vibration of a beam with unsymmetrically varying mechanical properties

Magnucki K., Lewiński J., Magnucka-Blandzi E., Kędzia P.

Journal of Theoretical and Applied Mechanics

2018

Vol. 56 nr 4

1163--1178

The subject of the paper is a beam with unsymmetrically varying mechanical properties in the depth direction. The nonlinear hypothesis of plane cross section deformation is assumed. Based on Hamilton’s principle, two differential equations of motion are obtained. The system of equations is analytically solved with a view to analyse the bending, buckling and free vibration problems of the beam. Moreover, the FEM model of the beam is developed and deflections, critical axial forces and natural frequencies of the beam are calculated. The results of these two methods are compared.