Stable Paths in the Postbuckling of an Imperfect Slender Web Loaded in Compression

Jozef Havran; Martin Psotný

doi:10.4028/www.scientific.net/AMM.837.28

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 837Stable Paths in the Postbuckling of an Imperfect...

Stable Paths in the Postbuckling of an Imperfect Slender Web Loaded in Compression

Abstract:

The stability analysis of a slender web loaded in compression is presented. The non-linear FEM equations are derived from the variational principle of minimum of potential energy. The peculiarities of the effects of the initial imperfections are investigated using user program. Special attention is paid to the influence of imperfections on the post-critical buckling mode. Stable load-displacement paths are investigated. The FEM computer program using a 48 DOF element has been used for analysis. FEM model consists of 4x4 finite elements. Full Newton-Raphson procedure has been applied.

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Periodical:

Applied Mechanics and Materials (Volume 837)

Pages:

28-33

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.837.28

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Online since:

June 2016

Authors:

Jozef Havran*, Martin Psotný

Keywords:

Initial Imperfection, Newton-Raphson Iteration, Postbuckling, Stability, Stable Paths

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