ARTICLE
Bending, buckling and free vibration of a beam with unsymmetrically varying mechanical properties
 
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1
Institute of Rail Vehicles TABOR, Poznań
2
Poznan University of Technology, Institute of Mathematics, Poznań
3
Poznan University of Technology, Institute of Applied Mechanics, Poznań
Submission date: 2017-09-21
Acceptance date: 2018-06-07
Online publication date: 2018-10-20
Publication date: 2018-10-20
 
Journal of Theoretical and Applied Mechanics 2018;56(4):1163–1178
 
KEYWORDS
ABSTRACT
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.
eISSN:2543-6309
ISSN:1429-2955