Analysis of plate rolling by MY criterion and global weighted velocity field |
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| Authors: | Shunhu Zhang Binna Song Xiaonan Wang Dewen Zhao |
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| Institution: | 1. Shagang School of Iron and Steel, Soochow University, Suzhou 215021, China;2. State Key Lab of Rolling and Automation, Northeastern University, Shenyang 110819, China |
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| Abstract: | A three-dimensional velocity field for plate rolling is proposed by global weighted method. Then, using the field and linear MY (mean yield) criterion, the power functional of internal deformation for plate rolling is analyzed. The collinear vector inner product is used in the friction power functional. Ultimately, analytical solution of total power functional is obtained. By minimizing the power functional, the rolling force and torque, as well as the stress effective factor are obtained. The calculated results by the solutions of rolling torque and force are compared with those of experimental ones. Good agreement is found and the maximum error percentage between them is less than 15.5%. |
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| Keywords: | Plate rolling Mean yield criterion Global weighted velocity field Collinear vector |
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