Numerical Analysis of the Flatness of Thin, Rolled Steel Strip on the Runout Table

Abstract A finite element analysis of the flatness of thin, rolled steel strip is presented. The occurrence of edge-wave and centre-buckle is predicted numerically by solving the eigenvalue problem. The form of buckles is calculated using a non-linear load-displacement analysis. Buckling changes fro...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture Journal of engineering manufacture, 2007-02, Vol.221 (2), p.241-254
Main Authors: Zhou, Zhongqing, Lam, YeeCheong, Thomson, P F, Yuen, D D W
Format: Article
Language:English
Subjects:
Applied sciences
Buckling
Compressive properties
Concavity
Displacement
Eigenvalues
Exact sciences and technology
Fasteners
Finite element method
Flatness
Flattening
Forming
Industrial metrology. Testing
Mathematical analysis
Mechanical engineering. Machine design
Metals. Metallurgy
Nonlinearity
Numerical analysis
Numerical prediction
Production techniques
Resists
Rolling
Steel
Steels
Stresses
Strip steel
Temperature effects
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Summary:Abstract A finite element analysis of the flatness of thin, rolled steel strip is presented. The occurrence of edge-wave and centre-buckle is predicted numerically by solving the eigenvalue problem. The form of buckles is calculated using a non-linear load-displacement analysis. Buckling changes from the centre to the edge as the maximum difference in temperature between the edge and centre increases; correspondingly, the amplitude increases and the wavelength decreases. Because uniform applied tension then decreases the compressive stress at the edge and increases the stress in the centre, a centre-buckled strip is flattened by applied tension, but edge-buckling becomes more severe and applied tension may change the type of buckling from the centre to the edge. Crowned strip resists buckling whereas a concave profile tends to promote it. The effects of the magnitude of the crown or concavity on centre-buckling of the strip are more significant than on edge-buckling.
ISSN:0954-4054
2041-2975
DOI:10.1243/09544054JEM514