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Preliminary report

ANALYSIS OF SNAP BEHAVIOUR OF SHALLOW CYLINDRICAL SHELLS USING THE FINITE STRIP METHOD

By
Aleksandar Borković
Aleksandar Borković

Arhitektonsko-građevinsko-geodetski fakultet, University of Banja Luka, Banja Luka, Bosnia and Herzegovina

Abstract

This paper presents one approach for the analysis of snap behaviour of simply supported elastic shallow shells. Structure is discretized with the finite strip method. Displacement field is approximated with series of products of polynomials and harmonic functions. Only geometric nonlinearity of von Karman type is considered. Equilibrium equations are derived via principle of stationary value of total potential energy and solved with arc-length method. Total Lagrangian approach is used. Detailed analysis of one shallow shell is performed. Obtained results are in good correspondence with the ones from the finite element method.

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