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Correlation of crack growth rate and stress ratio for fatigue damage containing very high cycle fatigue regime 被引量：2

Correlation of crack growth rate and stress ratio for fatigue damage containing very high cycle fatigue regime
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摘要 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.
作者 Chengqi Sun Youshi Hong
机构地区 State Key Laboratory of Nonlinear Mechanics
出处 《Theoretical & Applied Mechanics Letters》 2012年第3期11-14,共4页 力学快报（英文版）
基金 supported by the National Natural Science Foundation of China(11172304 and 11021262) the National Basic Research Program of China (2012CB937500)
关键词 裂纹扩展速率 疲劳损伤 应力比 高周疲劳 政权 循环疲劳 数据模型 公式推导 very high cycle fatigue crack growth rate stress ratio fatigue strength
分类号 O346.1 [理学—固体力学] O346.2 [理学—固体力学]
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参考文献9

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同被引文献26

  • 1王坤茜,徐人平,林捷晖.考虑应力比的疲劳裂纹扩展概率模型[J].航空动力学报,2009,24(9):2012-2018. 被引量：11
  • 2王玉辉,廖波,肖福仁,蔡大勇.支承辊用Cr5钢线接触滚动疲劳性能[J].金属热处理,2006,31(9):25-29. 被引量：4
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二级引证文献3

Theoretical & Applied Mechanics Letters
2012年 第3期

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