The assessment of wrinkling and large deformation post-wrinkling of metallic shell structures

Master thesis (2016)

Authors

Contributors

C. Kassapoglou (mentor)
Department
Aerospace Structures and Materials (Aerospace Engineering) (TU Delft)
Copyright: © 2016 Dekker, R.
More Info
expand_more

Published Date

04-07-2016

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Aerospace Engineering

Department

Aerospace Structures and Materials

Abstract

Localized buckles can occur in crashes when compressive stresses are dominant. However, due to their local appearance, they might be overlooked by a finite element analysis, meaning that local failure due to buckling will not be predicted. Methods to analytically assess the onset of such buckles are readily available. However, an off-the-shelf solution to predict the behaviour of them after the initial onset is not on hand. Therefore, an analytical method is developed that can predict the behaviour of a buckle after its onset, even in complex multiaxial states of stress that may be expected in crash scenarios. The strain over the buckle is captured as well, meaning that material failure can be predicted using existing material failure models. 

Files

Dekker 2016.pdf
(pdf | 4.57 Mb)