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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 33
Edited by: B.H.V. Topping
Paper VII.1

Adaptive Finite Element Analysis of Stiffened Shells

J.W. Bull, P. Bettes, I. Appelgarth, L.Y. Li and T. Bond

Engineering Design Centre, University of Newcastle upon Tyne, UK

Full Bibliographic Reference for this paper
J.W. Bull, P. Bettes, I. Appelgarth, L.Y. Li, T. Bond, "Adaptive Finite Element Analysis of Stiffened Shells", in B.H.V. Topping, (Editor), "Developments in Computational Techniques for Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 205-210, 1995. doi:10.4203/ccp.33.7.1
This paper discusses and presents examples of an adaptive finite element analysis method for stiffened shell structures. There have been many papers concerned with the adaptive analysis of plate and shell structures, but very few have considered structures with stiffeners. One problem to be faced is the topological difficulties in the mesh generation. Incorporating stiffeners normally requires the stiffener positions and properties to remain undisturbed when remeshing of the structure takes place. A second problem is the determination of the relationship between error and element size for stiffened shell elements. This involves different error convergence rates in the shell element and in the stiffener beam element. The present paper describes the methodology to overcome these difficulties and includes three examples.

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