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  4. The influence of R/t-ratio on the imperfection sensitivity of the buckling load of thin-walled CFRP cylindrical shells
 
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The influence of R/t-ratio on the imperfection sensitivity of the buckling load of thin-walled CFRP cylindrical shells

Citation Link: https://doi.org/10.15480/882.9671
Publikationstyp
Journal Article
Date Issued
2024-08-01
Sprache
English
Author(s)
Hartwich, Tobias S.  
Produktentwicklung und Konstruktionstechnik M-17  
Panek, Stefan  orcid-logo
Produktentwicklung und Konstruktionstechnik M-17  
Wilckens, Dirk  
Wille, Tobias  
Krause, Dieter  orcid-logo
Produktentwicklung und Konstruktionstechnik M-17  
TORE-DOI
10.15480/882.9671
TORE-URI
https://hdl.handle.net/11420/47839
Journal
Composite structures  
Volume
341
Article Number
118216
Citation
Composite Structures 341: 118216 (2024)
Publisher DOI
10.1016/j.compstruct.2024.118216
Scopus ID
2-s2.0-85194088794
Publisher
Elsevier
Thin-walled cylindrical shells under axial compression load are prone to buckling. The influencing factors leading to a reduction of the buckling load are a major design challenge. The sensitivity to imperfection increases with rising slenderness. In literature, cylinders with the same parameters and different slenderness are rarely tested in a larger number of samples. In this contribution, seven cylindrical shells, six of them nominally identical, are tested on two different test rigs and compared with twelve specimens with a smaller radius and same wall thickness from a previous series of tests. It is shown how the imperfection sensitivity is dependent on the R/t-ratio. Additionally, it is demonstrated how the quality of the test set ups corresponds with the achieved buckling load. Finally, the suitability of selected design approaches is determined based on the test results. Based on that, recommendations for the choice of a suitable approach are given.
Subjects
Buckling
Composite shells
Imperfections
Test rig
DDC Class
620.1: Engineering Mechanics and Materials Science
624.17: Structural Analysis and Design
Funding(s)
Projekt DEAL  
Lizenz
https://creativecommons.org/licenses/by/4.0/
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