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Buckling and post-buckling of thin-walled stiffened panels: modelling imperfections and joints

Prato, A., Al-Saymaree, M. S. M., Featherston, C. A. and Kennedy, D. 2022. Buckling and post-buckling of thin-walled stiffened panels: modelling imperfections and joints. Thin-Walled Structures 172 , 108938. 10.1016/j.tws.2022.108938
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This paper explores the effect of different modelling strategies to represent geometrical imperfections and joints in flat thin-walled stiffened panels during buckling and post-buckling. Compression tests were performed on aircraft grade aluminium alloy panels jointed to L-shape stiffeners using rivets with digital image correlation used to monitor out-of-plane deformations, mode shape changes and failures such as stiffener debonding. Experiments were replicated using finite element analysis employing different levels of complexity to model geometric imperfections and joints. The advantages and limitations of these strategies are discussed and recommendations are made.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Elsevier
ISSN: 0263-8231
Date of First Compliant Deposit: 21 February 2022
Date of Acceptance: 11 January 2022
Last Modified: 25 Feb 2022 02:06

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