TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
An Approximate Method Used in the Calculation of the Critical Load for Beams with Variable Cross Sectional Area
(O metodă aproximativă utilizată în determinarea sarcinii critice pentru bare cu secţiunea variabilă)
Vol LXIV • No. 3/2012
Şerban Vasilescu
Universitatea Petrol-Gaze din Ploieşti, Bd. Bucureşti 39, Ploieşti
e-mail: vserban@upg-ploiesti.ro

 Keywords   deflection, slope, elastic curve, buckling

 Abstract
In the paper is presented an approximate method that can be used in order to calculate the critical load for beams with different cross sectional area, loaded with different axial forces. The results obtained are compared with those obtained by using the second order theory of the buckling of beams.

 Rezumat
În lucrare se prezintă o metodă aproximativa ce poate fi utilizata in determinarea sarcinii critice pentru bare cu sectiunea variabila. Rezultatele obţinute sunt comparate cu cele furnizate de teoria de ordinul II a flambajului barelor drepte.



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