Exact buckling loads of two-layer composite Reissneras columns with interlayer slip and uplift

The principal purpose of the paper is to present an efficient mathematical model for studying the buckling behaviour of geometrically perfect, elastic Reissneras two-layer composite columns with interlayer slip and uplift between the layers. The present mathematical model is capable of predicting ex...

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Bibliographic Details
Published in:International journal of solids and structures 2013-01, Vol.50 (1), p.30-37
Main Authors: Schnabl, S, Planinc, I
Format: Article
Language:English
Subjects:
Buckling
Interlayers
Mathematical models
Slip
Stiffness
Online Access:Get full text
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Summary:The principal purpose of the paper is to present an efficient mathematical model for studying the buckling behaviour of geometrically perfect, elastic Reissneras two-layer composite columns with interlayer slip and uplift between the layers. The present mathematical model is capable of predicting exact critical buckling loads and corresponding buckling modes. Thus, it is used to study the influence of the transverse interlayer stiffness in combination with the longitudinal interlayer stiffness on critical buckling loads and modes. This effect is proved to be significant. The critical buckling loads calculated by the proposed method can be up to approximately 89% smaller than those where interlayer uplift is neglected.
ISSN:0020-7683
DOI:10.1016/j.ijsolstr.2012.08.027