会议专题

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)