A modification to the model of Weir ef al. for surface reaction and transport controlled fatigue crack growth has been developed to explicitly account for the effect of load ratio on environmentally assisted fatigue crack growth. Load ratio was found to affect principalfy gas transport to the crack
โฆ LIBER โฆ
Effect of load ratio on the deformation behaviour of fatigue crack tips
โ Scribed by M. Shimojo; M. Chujo; Y. Higo; S. Nunomura
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 467 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0142-1123
No coin nor oath required. For personal study only.
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A study of the effect of load ratio, R, on the low crack growth rates and the threshold stress conditions exhibited by five medium carbon steels has been conducted. It was found that decreased values of R retarded crack growth to an increasing degree as a defined threshold for crack growth was appro