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| Oblique and Herringbone Buckling Analysis of Steel Strip by Spline FEM |
| QIN Jian1,2,ZHANG Qing-dong2,HUANG Ke-fu1 |
1. College of Engineering, Peking University, Beijing 100871, China
2. Mechanical Engineering School,University of Science and Technology Beijing, Beijing 100083, China |
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Abstract The tilted waves in steel strip during rolling and leveling of sheet metal can be classified into two different types of buckling, oblique and herringbone buckling, respectively. Numerical considerations of oblique and herringbone buckling phenomena are dealt with by the spline finite element method (FEM). It is pointed out that the shear stress due to residual strains caused by the rolling process or applied non-uniform loading is the main reason of oblique and herringbone buckle. According to the analysis of stress distribution in plane, the appropriate initial strain patterns are adopted and the corresponding buckling modes are calculated by the spline FEM. The developed numerical model provides an estimation of buckling critical load and wave configuration.
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Received: 06 September 2010
Published: 26 September 2011
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2011, Vol. 18 
