FE model for composite beam-type structure buckling analysis (CROSBI ID 576099)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lanc, Domagoj ; Pešić, Igor ; Turkalj, Goran ; Brnić, Josip
engleski
FE model for composite beam-type structure buckling analysis
This paper presents finite element algorithm for buckling analysis of thin-walled laminated composite beam-type structures. One-dimensional finite element is employed under assumptions of large displacements but small strains. Using non-linear displacement field of cross-section that includes the large rotation effects, the geometric stiffness matrix of thin-walled beam finite element is derived. Stability analysis is performed in an eigenvalue manner and it attempts to determine the critical loads as well as corresponding buckling modes in a direct manner without calculating the deformations. Supposing such approach the lowest eigenvalue is recognised as a critical or buckling load and the corresponding eigenvector represents a corresponding critical or buckling mode. The cross- section mid-line contour is assumed to remain not deformed in its own plane and the shear strains of middle surface are neglected. Laminates are modelled on the basis of classical lamination theory. Computer program is developed and verified trough the few test examples.
Composite; Beam-type structure; Buckling analysis
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Podaci o prilogu
2010.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of ICPNS'2010
Niu, Jitai
Guilin: Chinese Mechanical Engineering Society
Podaci o skupu
The Sixth International Conference on Physical and Numerical Simulation of Materials Processing, ICPNS 2010
predavanje
16.11.2010-19.11.2010
Guilin, Kina