Research on Behavior of Slab Surface Defects in Forward Slip Zone during V-H Rolling Process

摘要：

Behavior of the transversal crack and the longitudinal crack on slab surface during V-H rolling process was simulated by FEM. The contact pressure on crack surfaces and the crack-tip stress change rules in rolling were analyzed. Research results show that the contact pressure on crack surfaces decreases and the tensile stress appears at crack tip in the zone of slippage on the delivery side, which may make the cracks propagation. For the phenomenon, the stress distribution along rolling direction and along width direction in rolling are analyzed, and the influence of forward slip on the closure and growth of the surface transversal crack and the surface longitudinal crack are discussed. Results support some significant information for researching the behavior of the slab surface defects in rolling process.

关键词： Forward slip crack FEM

作者: Hai-liang Yu Xiang-hua LIU Chang-sheng LI Li-qing CHEN

作者单位: The State Key Laboratory of Rolling and Automation, Northeastern University, 110004, Shenyang, China

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）