This paper describes a simplified estimation method for surface crack growth behavior under creep-fatigue conditions. The method considered in this study was based on R6 rule developed by CEGB in UK and was applied to fatigue and creep-fatigue crack growth assessment. The authors considered stress relaxation behavior during the hold time in the ΔJ c evaluation using elastic follow-up coefficients. Various tests were carried out and were compared with the predictions by the proposed method. In consequence, it was confirmed that the crack growth-rate under creep-fatigue conditions can be estimated within a factor of two for axial loading and ten for bending loading.
|Number of pages||13|
|Publication status||Published - 1996 Dec 1|
|Event||Proceedings of the 1996 8th International Conference on Pressure Vessel Technology, ICPVT-8. Part 2 (of 2) - Montreal, Can|
Duration: 1996 Jul 21 → 1996 Jul 26
|Other||Proceedings of the 1996 8th International Conference on Pressure Vessel Technology, ICPVT-8. Part 2 (of 2)|
|Period||96/7/21 → 96/7/26|
ASJC Scopus subject areas