Nonlinear Spline Finite Element Method for Ribbing of Cold-Rolled Coils

The ribbing problem has serious influence on the steel product quality, which produces additional shape waves on the surface of uncoiled steel strip on the process of curl. Nonlinear spline finite element method (n-spline FEM) is adopted to establish the relationship between the ribbing height and d...

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Bibliographic Details
Published in:Journal of iron and steel research, international international, 2012, Vol.19 (1), p.36-40
Main Authors: QIN, Jian, ZHANG, Qing-dong, HUANG, Ke-fu
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Engineering
Finite element method
Iron and steel industry
Machines
Manufacturing
Materials Engineering
Materials Science
Mathematical analysis
Mathematical models
Metallic Materials
nonlinear spline FEM
Nonlinearity
Physical Chemistry
post-buckling
Processes
ribbing
Splines
steel strip
Steels
Stiffening
有限元方法
有限元计算
样条有限元法
热轧卷板
罗纹
表面形状
钢铁产品
非线性
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Summary:The ribbing problem has serious influence on the steel product quality, which produces additional shape waves on the surface of uncoiled steel strip on the process of curl. Nonlinear spline finite element method (n-spline FEM) is adopted to establish the relationship between the ribbing height and deflection of additional shape wave, for example, post-buckling deformation. The proposed spline FEM is more effective and convenient than traditional finite element method in the buckling analysis. Using the spline FEM, the shape wave caused by the ribbing is calculated, and then the ribbing values can be obtained which are difficult to measure in practice. At the same time, the judgment rule is also given for estimating the strip quality according to the ribbing value.
ISSN:1006-706X
2210-3988
DOI:10.1016/S1006-706X(12)60044-2