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Applied Mathematics and Mechanics (English Edition) ›› 2002, Vol. 23 ›› Issue (3): 321-328.

• 论文 • 上一篇    下一篇

NUMERICAL SIMULATION OF ROLL FORMING FOR CHANNEL SECTION WITH OUTER EDGE

韩志武1, 刘才2, 陆卫平3   

  1. 1. School of Biology and Agricultural Engineering, Jilin University, Changchun 130025. P R China;
    2. Institute of Rolling Mill, Yanshan University, Qinhuangdao 066004, P. R. China;
    3. Changchun Cold-Rolled Forming Section Steel General Works, Changchun 130042, P. R. China
  • 收稿日期:2000-05-26 修回日期:2001-12-25 出版日期:2002-03-18 发布日期:2002-03-18

NUMERICAL SIMULATION OF ROLL FORMING FOR CHANNEL SECTION WITH OUTER EDGE

HAN Zhi-wu1, LIU Cai2, LU Wei-ping3   

  1. 1. School of Biology and Agricultural Engineering, Jilin University, Changchun 130025. P R China;
    2. Institute of Rolling Mill, Yanshan University, Qinhuangdao 066004, P. R. China;
    3. Changchun Cold-Rolled Forming Section Steel General Works, Changchun 130042, P. R. China
  • Received:2000-05-26 Revised:2001-12-25 Online:2002-03-18 Published:2002-03-18

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摘要： The finite strip method in structural analysis has been extended, and elastic-plastic large deformation spline finite strip method based on the Updated-Lagrange method (U.L.method) was established to simulate roll forming process of channel section with outer edge. The deformation characteristics of strip was analyzed, and the three-dimensional displacement field, strain field and stress field of deformed strip were got. The calculation example proves that the peak transverse pressing membrane strain is on the corner part of the deformed strip, and the peak longitudinal stretching strain is on the outer edge part of the deformed strip in front of rolls. In addition, the transverse deformation of the deformed strip is principal, and the longitudinal deformation is small.

Abstract: The finite strip method in structural analysis has been extended, and elastic-plastic large deformation spline finite strip method based on the Updated-Lagrange method (U.L.method) was established to simulate roll forming process of channel section with outer edge. The deformation characteristics of strip was analyzed, and the three-dimensional displacement field, strain field and stress field of deformed strip were got. The calculation example proves that the peak transverse pressing membrane strain is on the corner part of the deformed strip, and the peak longitudinal stretching strain is on the outer edge part of the deformed strip in front of rolls. In addition, the transverse deformation of the deformed strip is principal, and the longitudinal deformation is small.

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