Probabilistic perturbation load approach for designing axially compressed cylindrical shells

Enthalten in
Thin-walled structures 
Volume
107
Start Page
648
End Page
656
Citation
Thin-Walled Structures (107): 648-656 (2016-10-01)
Publisher DOI
10.1016/j.tws.2016.07.021
Scopus ID
2-s2.0-84982719294
The buckling load of cylindrical shells is heavily dependent on geometric imperfections and other non-traditional imperfections such as scattering wall thicknesses or loading imperfections. In this paper, the probabilistic perturbation load approach (PPLA) is proposed. This procedure is independent from costly measurements of geometric imperfections and is able to include various kinds of non-traditional imperfections by integrating the single perturbation load approach into a semi-analytical probabilistic framework. It is shown that the PPLA leads to design loads which are lower than the experimental buckling loads and much less conservative than the ones obtained from NASA SP-8007 in all investigated cases.
Schlagworte
Buckling
Cylindrical shells
Imperfections
Probabilistic design
Single perturbation load
DDC Class
620: Ingenieurwissenschaften