Creep fracture mechanics parameters for internal axial surface cracks in pressurized cylinders and creep crack growth analysis

@inproceedings{Wen2011CreepFM,
  title={Creep fracture mechanics parameters for internal axial surface cracks in pressurized cylinders and creep crack growth analysis},
  author={Jian-feng Wen and Shan-Tung Tu and Jianming Gong and Wenqiang Sun},
  year={2011}
}
Abstract In the present study, a low alloy Cr–Mo steel cylinder subjected to internal pressure at high temperature with a semi-elliptical crack located at the inner surface is considered. The creep crack driving force parameter C ∗-integrals calculated by finite element (FE) method, are compared with results from previous studies, which indicates that empirical equations may be inaccurate under some conditions. A total of 96 cases for wide practical ranges of geometry and material parameters… CONTINUE READING