Residual stress prediction for hot strip composite roll by measuring the stress of the disk cut out from the roll

摘要：

In order to prevent fracture, compressive residual stress is provided on the surface of the hot strip composite roll. However, since the stress should be balanced at the cross section, a large tensile residual stress must appear at the roll center. Residual stresses play a significant role, and it is necessary to measure the residual stress distribution from the surface to center correctly to avoid fracture. The disk-cutting method has been widely used in to measure the residual stress on the roll from the cut-out disk stress. However, nobody knows how the residual stress is changed from the initial residual stress of the roll. In this study, therefore the difference of residual stress between the roll and disk has been investigated by applying the thermo-elastic-plastic FEM analysis. Finally we find a relationship between the heat treatment and the residual stress in composite rolls.

关键词： Residual stress Finite element method (FEM) Fracture Elastic-plastic

作者: Xu Wang Nao-aki Noda Yoshikazu Sano Wen-hai Guan Yasushi Takase

作者单位: Kyushu Institute of Technology, Kitakyushu 804-8550, Japan

会议类型: 国际会议

会议名称: 2012 International Symposium on Structural Integrity 2012国际结构完整性学术研讨会 ISSI 2012

会议地点: 济南

会议语种:英文

页码: 195-198

在线出版日期: 2012-10-31（万方平台首次上网日期，不代表论文的发表时间）