Effect of bending-twisting coupling on the compression and shear buckling strength of infinitely long plates

York, C. B. and de Almeida, S. F. M. (2018) Effect of bending-twisting coupling on the compression and shear buckling strength of infinitely long plates. Composite Structures, 184, pp. 18-29. (doi: 10.1016/j.compstruct.2017.09.085)

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This article describes the development of closed form polynomial equations for compression and shear buckling to assess the effect of Bending-Twisting coupling on infinitely long laminated plates with simply supported edges. The equations are used to generate contour maps, representing non-dimensional buckling factors, which are superimposed on the lamination parameter design spaces for laminates with standard ply orientations. The contour maps are applicable to two recently developed databases containing symmetric and non-symmetric laminates with either Bending-Twisting or Extension-Shearing Bending-Twisting coupling. The contour maps provide new insights into buckling performance improvements that are non-intuitive and facilitate comparison between hypothetical and practical designs. The databases are illustrated through point clouds of lamination parameter coordinates, which demonstrate the effect of applying common design heuristics, including ply angle, ply percentage and ply contiguity constraints.

Item Type:Articles
Additional Information:The Newton Research Collaboration Programme (NRCP1516/4/50) and CNPq (574004/2008-4) are gratefully acknowledged for supporting this research.
Keywords:Extension-shearing, bending-twisting coupling, buckling contours, closed form solutions, compression buckling, lamination parameters, laminate stacking sequences, shear buckling.
Glasgow Author(s) Enlighten ID:York, Dr Christopher
Authors: York, C. B., and de Almeida, S. F. M.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Composite Structures
ISSN (Online):1879-1085
Published Online:28 September 2017
Copyright Holders:Copyright © 2017 Elsevier Ltd.
First Published:First published in Composite Structures 184: 18-29
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
724671The Flexible Wing Project: Advanced Tailoring Strategies for Laminated Composite MaterialsChristopher YorkRoyal Academy of Engineering (RAE)NRCP1516/4/50ENG - AEROSPACE SCIENCES