چکیده مقاله
Crack growth is one of the main causes of failure of hot rolling rollers, which also causes damage to other parts For this reason, three dimensional modeling of surface crack, the study of the effect of different factors and different phenomena on roller fatigue life and the effect of stress distribution are important research topics To increase the efficiency of rollers and propose practical methods, in this study, the stress intensity factors of surface cracks in rollers fabricated from High Chromium Steel HCS in the hot rolling process are modeled in three dimensions Each component modeled separately, the complexity of problem solving is reduced and the speed of solution is improved using the proposed method In this regard, first, the types of cracks and their causes in the roller as well as the effect of residual stresses on the roller are analyzed By selecting HCS roller and sheet, modeling and stress analysis are performed by finite element method In addition, the boundary element method was used to simulate the three dimensional cracks and the stress intensity factors The results show that the values of stress intensity factors at the deepest point of the crack front are maximum
کلیدواژهها
نویسندگان
Reza Masoudi Nejad
School of Mechanical and Electrical Engineering University of Electronic Science and Technology of ChinaChengdu, China
Peyman Noroozian Rizi
Department of Mechanical Engineering Foolad Institute of Technology Fooladshahr, Isfahan, Iran
Greg Wheatley
College of Science and Engineering James Cook University Townsville, Australia
Hosein Ghasemi
Department of Mechanical Engineering University of Birjand Birjand, Iran
شیوه ارجاع
Masoudi Nejad, Reza and Noroozian Rizi, Peyman and Wheatley, Greg and Ghasemi, Hosein,1399,Stress intensity factor evaluation for fatigue crack in working roll due to hot rolling process,6th International Conference on Science and Technology with Sustainable Development Approach
ارائهشده در
مجموعه مقالات ششمین همایش بین المللی علوم و تکنولوژی با رویکرد توسعه پایدار20 اسفند 1399