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Title: Post-collapse bifurcation analysis of shells of revolution by the accumulated arc-length method
Authors: Teng, JG 
Lou, YF
Keywords: Accumulated arc-length method
Arc-length method
Issue Date: 1997
Source: International journal for numerical methods in engineering, 1997, v. 40, no. 13, p. 2369-2383 How to cite?
Journal: International Journal for Numerical Methods in Engineering 
Abstract: Shells of revolution subject to axisymmetric loads often fail by non-symmetric bifurcation buckling after non-linear axisymmetric deformations. A number of computer programmes have been developed in the past decades for these problems, but none of them is capable of bifurcation analysis on the descending branch of the primary load-deflection path following axisymmetric collapse/snap-through. This paper presents the first finite element formulation of post-collapse bifurcation analysis of axisymmetric shells in which a modified are-length method, the accumulated arc-length method, is developed to effect a new automatic bifurcation solution procedure. Numerical examples are presented to demonstrate the validity and capability of the formulation as well as the practical importance of post-collapse bifurcation analysis. The accumulated arc-length method proposed here can also be applied to the post-collapse bifurcation analysis of other structural forms.
ISSN: 0029-5981
DOI: 10.1002/(SICI)1097-0207(19970715)40:13<2369
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