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Stability analysis of shells of revolution by the finite-element method.

Stability analysis of shells of revolution by the finite-element method
Authors: Navaratna, D. R.; Pian, T. H. H.; Witmer, E. A.;

Stability analysis of shells of revolution by the finite-element method.

Abstract

An extension of the finite-element displacement method to the analysis of linear bifurcation buckling of general shells of revolution under static axisymmetric loading is presented. A systematic procedure for the formulation of the problem is based upon the criterion that the condition for neutral stability of a system is the vanishing of the second variation of the total potential energy from the stable equilibrium state to the perturbed bifurcation state; this results in an eigenvalue problem. For solution, the shell is discretized into either a series of conical frusta or of frusta with meridional curvature. The prebuckling equilibrium solution is axisymmetric, but the perturbation-displacement field within each element is represented by Fourier circumferential components of the generalized displacements which are defined at the nodal circles. The present formulation is applied to a number of shells of revolution with arid without meridional curvature, and comparisons are made with other theoretical and available experimental results.

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Keywords

mechanics of solids

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
30
Average
Top 1%
Average
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