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  • 1 Modeling and Simulation of Mechanical Systems Laboratory Faculty of Sciences at Tetouan, University Abdelmalek Essaadi, BP. 2121, M'hannech, Tetouan, Morocco
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Abstract

Buckling analysis of axially compressed cylindrical shells having one or two localized initial geometric imperfections was performed by using the finite element method. The imperfections of entering triangular form were assumed to be positioned symmetrically at the mid shell length. The buckling load was assessed in terms of shell aspect ratios, imperfection amplitude and wavelength, and the distance separating the imperfections. The obtained results have shown that amplitude and wavelength have major effects, particularly for short and thin shells. Two interacting imperfections were found to be more severe than a single imperfection, but the distance separating them has small influence.

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