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Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure
Sun CQ(孙成奇); Lei ZQ(雷铮强); Xie JJ(谢季佳); Hong YS(洪友士); Hong, YS (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
2013-03
Volume48Pages:19-27
ISSN0142-1123
AbstractExperimental results indicate that the fatigue life reduces by about two orders of magnitude when inclusion size doubles. Then, a model is proposed for predicting the fatigue strength of high-strength steels with fish-eye mode failure based on the experimental results for the effect of inclusion size and stress ratio. In the model, the effect of inclusion size a0 and stress ratio R on fatigue strength σa is expressed as σa proportional to σa  a0m[(1 − R)/2]α, where m and a are material parameters. The predicted results are in good agreement with our experimental results and the ones reported in literature.
KeywordVery-high-cycle Fatigue Inclusion Size Stress Ratio Fatigue Strength High-strength Steels
Subject Area疲劳与断裂力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000315617500004
Funding OrganizationNational Natural Science Foundations of China [11172304, 11021262, 11202210]; National Basic Research Program of China [2012CB937500]
DepartmentLNM金属材料微结构与力学性能
Classification二类/Q1
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47141
Collection非线性力学国家重点实验室
Corresponding AuthorHong, YS (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Sun CQ,Lei ZQ,Xie JJ,et al. Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure[J]. INTERNATIONAL JOURNAL OF FATIGUE,2013,48:19-27.
APA Sun CQ,Lei ZQ,Xie JJ,Hong YS,&Hong, YS .(2013).Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure.INTERNATIONAL JOURNAL OF FATIGUE,48,19-27.
MLA Sun CQ,et al."Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure".INTERNATIONAL JOURNAL OF FATIGUE 48(2013):19-27.
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