Design of cylindrical shells using the single perturbation load approach : potentials and application limits

Enthalten in
Thin-walled structures 
Volume
108
Start Page
369
End Page
380
Citation
Thin-Walled Structures (108) : 369-380 (2016)
Publisher DOI
10.1016/j.tws.2016.09.005
Scopus ID
2-s2.0-84986910130
Publisher
Elsevier
The Single Perturbation Load Approach (SPLA) is a promising deterministic procedure on the basis of mechanical considerations to determine reasonable design loads for cylindrical shells in axial compression. In this paper, two main issues are identified that should be understood better in order to appreciate the potential and the limits of application of the SPLA. Firstly, the question whether a single perturbation load in general represents a “worst case” imperfection is addressed. Secondly, the influence of the stiffness properties of the shell on the quality of the SPLA predictions is studied. Finally, an indicator is suggested which identifies, based on the cylinder stiffness properties, whether the SPLA is conservative for a considered shell or not.
Schlagworte
buckling
shell structures
single perturbation load approach
DDC Class
620: Ingenieurwissenschaften