Simulation of Residual Stress in Hot Rolled Large Size H-beams

摘要：

The distribution of residual stress in hot rolled large size H-beams is complex due to the uneven temperature distribution on the final rolling cross-sections. In this paper, 3D simulation analysis is conducted on the residual stress field of cooled large H-beams and the transformation of residual stress field during the flange cutting based on the calculations of thermo-mechanical coupling whole rolling process. There are tensile stress in the flange and web connection areas and compressive stress in web. During the flange cutting process, tensile stress increases suddenly when the kerf arrives at the flange and web connection area, resulting in the brittle fracture of the web. The method of controlling the residual stress of large H-beams is also simulated. Improvement in the distribution of residual stress is achieved through the forced cooling of the outside flange or reduction of the temperature differences on the final rolling cross-sections.

作者: Zhu Guoming Kang Yonglin Ma Guangting

作者单位: School of Materials Science and Engineering, USTB, Beijing 100083, China School of Materials Science and Engineering, USTB, Beijing 100083, China Sate Key Laboratory for Adv Laiwu Iron & Steel Incorporation, Laiwu 271104, China

会议类型: 国际会议

会议名称: The 6th International Conference on Physical and Numerical Simulation of Materials Processing(第六届材料与热加工物理模拟及数值模拟国际学术会议 ICPNS 2010)

会议地点: 桂林

会议语种:英文

页码: 1-9

在线出版日期: 2010-11-16（万方平台首次上网日期，不代表论文的发表时间）