A new life prediction method for stress controlled fatigue-creep interaction
Based on the Hull-Rimmer creep cavity growth theory, a new life prediction method is developed taking the equivalent grain boundary cavity radius as a damage parameter. This method is applicable for stress control mode. It involves the effects of fatigue, static creep and cyclic creep during the fatigue- creep interaction. By employing this method, the fatigue-creep life is assessed for 1.25Cr0.5Mo steel at 520℃ and 540℃. The predicted lives are compared with the tested ones and a good agreement is found between them.
Fatigue-creep Grain boundary cavity Stress control High temperature
Huifeng Jiang Xuedong Chen Zhichao Fan Jie Dong Shouxiang Lu
Hefei General Machinery Research Institute, National Technology Research Center on Pressure Vessel a Department of Safety Science and Engineering, University of Science and Technology of China, Hefei 2
国际会议
国际断裂力学2007年会(Fracture Mechanics and Applications 2007)
长沙
英文
97-101
2007-11-01(万方平台首次上网日期,不代表论文的发表时间)