A numerical strategy for predicting the interface stresses in metal strip rolling with small reduction

Wu，Chuhan1; Zhang，Liangchi2,3,4; Qu，Peilei5; Li，Shanqing5; Jiang，Zhenglian5; Wang，Yan1

2023-02-15

10.1016/j.ijmecsci.2022.107953

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES   Impact Factor & Quartile

0020-7403

1879-2162

This paper has developed a numerical strategy for predicting the interface stresses in metal strip rolling at a small reduction. Key rolling factors such as the roll elasticity, fluid lubrication, random asperity contacts, asperity-lubricant interaction, rolling speed and reduction were comprehensively integrated into the numerical analysis. The random asperity contact at the roll-strip interface was addressed by a statistical approach with considering the elastoplastic deformations of surface asperities. A transient average Reynolds equation was utilised to deal with the fluid flow subjected to the interruptions caused by the asperity contacts. With the aid of a dynamic explicit finite element analysis, a novel modularised strategy was established to systematically accommodate the mathematical models governing the above key rolling factors, which allows the affordable computation and the effective predictions of contact characteristics in the strip rolling. It was found that both the lubrication and microscale asperity contacts disturb considerably the contact stresses at the rolling interface, and that a proper selection of rolling conditions can reasonably regulate the stresses.

Elastic roll Lubrication Random surface asperities Strip rolling

SCI

English

Corresponding

Baosteel Australia Research and Development Centre (BAJC)[BA18002] ; Guangdong Specific Discipline Project[2020ZDZX2006] ; Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics Project[ZDSYS20200810171201007]

Engineering ; Mechanics

Engineering, Mechanical ; Mechanics

WOS:000890794400001

PERGAMON-ELSEVIER SCIENCE LTD

ENGINEERING

2-s2.0-85142309277

Scopus

1.School of Mechanical and Manufacturing Engineering,The University of New South Wales,NSW,2052,Australia
2.Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
3.SUSTech Institute for Manufacturing Innovation,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
4.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
5.Baoshan Iron & Steel Co.,Ltd.,Shanghai,200941,China

Wu，Chuhan,Zhang，Liangchi,Qu，Peilei,et al. A numerical strategy for predicting the interface stresses in metal strip rolling with small reduction[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2023,240.

Wu，Chuhan,Zhang，Liangchi,Qu，Peilei,Li，Shanqing,Jiang，Zhenglian,&Wang，Yan.(2023).A numerical strategy for predicting the interface stresses in metal strip rolling with small reduction.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,240.

Wu，Chuhan,et al."A numerical strategy for predicting the interface stresses in metal strip rolling with small reduction".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 240(2023).