Imperfection measures of eigen- and periodic modes of axially loaded stringer-stiffened cylindrical shell-Reference-Cited by-同舟云学术

Imperfection measures of eigen- and periodic modes of axially loaded stringer-stiffened cylindrical shell

Published:2009-12-17 Issue:5 Volume:224 Page:601-612
ISSN:0954-4100
Container-title:Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering

Author:

Sadovský Z¹,Ďuricová A²,Ivančo V³,Kriváček J¹

Affiliation:

1. Department of Structures, Institute of Construction and Architecture, Slovak Academy of Sciences, Bratislava, Slovakia

2. Building Testing and Research Institute, Košice, Slovakia

3. Faculty of Mechanical Engineering, Department of Applied Mechanics and Mechatronics, Technical University of Košice, Košice, Slovakia

Abstract

The influence of initial geometric imperfections in the shapes of eigenmodes and periodic modes on the load-carrying capacity of a steel stringer-stiffened cylindrical shell subject to axial compression is studied. For comparison of the influence of different shapes, the imperfections are normalized by an integral—energy measure, which is considered as an alternative to the commonly applied amplitude. The shell dimensions are chosen out of the set of 24 small-scale specimens tested between 1981 and 1984 at Imperial College in London. Published results of statistical analysis of measured imperfection surfaces of the set are employed for checking their conjectured relationship to the normalization of imperfections by the energy measure. The study is finite element method (FEM)-oriented; the numerical model is checked by application of two FEM codes.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Aerospace Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1243/09544100JAERO542

Reference14 articles.

1. Future directions and challenges in shell stability analysis

2. Collapse of axially compressed cylindrical shells with random imperfections

3. Stochastic imperfection modelling in shell buckling studies

4. Stability of steel shell structures

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