A model is proposed to correlate the crack growth rate and stress ratio containing very high cycle fatigue regime. The model is verified by the experimental data in literature. Then a formula is derived for the effect of mean stress on fatigue strength, and it is used to estimate the fatigue strength of a bearing steel in very high cycle fatigue regime at different stress ratios. The estimated results are also compared with those by Goodman formula.; A model is proposed to correlate the crack growth rate and stress ratio containing very high cycle fatigue regime. The model is verified by the experimental data in literature. Then a formula is derived for the effect of mean stress on fatigue strength, and it is used to estimate the fatigue strength of a bearing steel in very high cycle fatigue regime at different stress ratios. The estimated results are also compared with those by Goodman formula.
This work was supported by the National Natural Science Foundation of China (11172304 and 11021262) and the National Basic Research Program of China (2012CB937500).
Sun CQ,Hong YS. Correlation of crack growth rate and stress ratio for fatigue damage containing very high cycle fatigue regime[J]. THEORETICAL & APPLIED MECHANICS LETTERS,2012,2,3,:031004.
APA
孙成奇,&洪友士.(2012).Correlation of crack growth rate and stress ratio for fatigue damage containing very high cycle fatigue regime.THEORETICAL & APPLIED MECHANICS LETTERS,2(3),031004.
MLA
孙成奇,et al."Correlation of crack growth rate and stress ratio for fatigue damage containing very high cycle fatigue regime".THEORETICAL & APPLIED MECHANICS LETTERS 2.3(2012):031004.
; Hong YS(洪友士)
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