TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
On the Buckling of Thin Walled Stiffened Cylindrical Shells (TWSCS) under Uniform External Pressure
(Studiul stabilității învelișurilor cilindrice subțiri rigidizate (ICSR) supuse la presiune exterioară uniformă)
Vol LXVII • No. 3/2015
Maria Zaharia
Universitatea Petrol-Gaze din Ploieşti, Bd. Bucureşti 39, Ploieşti
e-mail: ing_mariaupg@yahoo.com

 Keywords   buckling, stiffened cylindrical shells, uniform external pressure, FEM

 Abstract
In this paper is analysed the buckling behaviour under uniform external pressure of cylindrical shells stiffened with stringers. The critical buckling pressure was determined according to the analytical calculation methodology presented in SR EN 1993-4-1:2007 [8] and also using numerical analysis with finite element method (FEM). The results obtained were verified experimentally by using a scale model of stiffened cylindrical shell.

 Rezumat
În cadrul acestui articol este analizată comportarea la pierderea stabilității a ICSR cu nervuri verticale, supuse la presiune exterioară uniformă. Valoarea presiunii critice de pierdere a stabilității a fost determinată pe baza metodologiei de calcul analitic prezentată în SR EN 1993-4-1:2007 [8] și pe baza analizei numerice utilizând metoda elementului finit (MEF). Rezultatele astfel obținute au fost verificate pe baza încercărilor experimentale ce au fost efectuate pe un model la scară de înveliș cilindric subțire rigidizat.



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