Buckling deformation of thin layer coverings of small curvatures used in aircraft construction

Bakunowicz, Jerzy; Kopecki, Tomasz; Lis, Tomasz; Mazurek, Przemys?aw

Abstract

This paper presents the results of the experimental and numerical analysis in terms of the finite element method of plating components of aircraft load-bearing structures. The subject matter of the study was composite panels with stiffeners in the form of a regular grid of oriented longitudinal elements in accordance with the directions of the principal stresses in the covering. The analysis was conducted in the buckling states of structural deformation which showed that structures with stiffeners exhibit much more favorable behavior in buckling deformation states than in laminar structures.
This translates into stress distributions and their gradients, which are milder in forms of stiffened structures.

• Journal Article Type: Article
• Acceptance Date: Jan 15, 2018
• Publication Date: Mar 1, 2018
• Deposit Date: Aug 3, 2018
• Publicly Available Date: Sep 4, 2018
• Journal: Advances in Science and Technology Research Journal
• Print ISSN: 2299-8624
• Peer Reviewed: Peer Reviewed
• Volume: 12
• Issue: 1
• Pages: 293-302
• DOI: https://doi.org/10.12913/22998624/85660
• Keywords: buckling, isogrid, loss of stability, aircraft load-bearing structures, finite elements method, nonlinear numerical analysis
• Public URL: https://uwe-repository.worktribe.com/output/870870
• Publisher URL: http://dx.doi.org/10.12913/22998624/85660
• Contract Date: Aug 3, 2018