Buckling and Initial Postbuckling Behavior of Sandwich Beams Including Transverse Shear

An asymptotic solution is presented for the buckling and initial postbuckling behavior of sandwich beams. The effect of transverse shear is included, and the shear correction is calculated from energy equivalency. The asymptotic procedure is based on the nonlinear beam equation (with transverse shea...

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Veröffentlicht in:AIAA journal 2002-11, Vol.40 (11), p.2331-2335
Hauptverfasser: Huang, Haiying, Kardomateas, George A
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description An asymptotic solution is presented for the buckling and initial postbuckling behavior of sandwich beams. The effect of transverse shear is included, and the shear correction is calculated from energy equivalency. The asymptotic procedure is based on the nonlinear beam equation (with transverse shear included), and closed-form solutions are derived for the critical load and for the load and midpoint deflection and axial shortening vs applied compressive load during the initial postbuckling phase. Illustrative results are presented for a few typical sandwich construction configurations, in particular, with regard to the effect of face sheet and core material system.
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subjects Aircraft
Buckling
Design engineering
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Static buckling and instability
Structural and continuum mechanics
title Buckling and Initial Postbuckling Behavior of Sandwich Beams Including Transverse Shear
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