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Crack propagation mechanism and life prediction for very-high-cycle fatigue of a structural steel in different environmental medias
Qian GA(钱桂安); Zhou CE(周承恩); Hong YS(洪友士); Hong YS(洪友士)
Source PublicationFRATTURA ED INTEGRITA STRUTTURALE
2013-07
Volume7Issue:25Pages:7-14
ISSN1971-8993
AbstractThe influence of environmental medias on crack propagation of a structural steel at high and very-high-cycle fatigue (VHCF) regimes is investigated based on the fatigue tests performed in air, water and 3.5% NaCl aqueous solution. Crack propagation mechanisms due to different crack driving forces are investigated in terms of fracture mechanics. A model is proposed to study the relationship between fatigue life, applied stress and material property in different environmental medias, which reflects the variation of fatigue life with the applied stress, grain size, inclusion size and material yield stress in high cycle and VHCF regimes. The model prediction is in good agreement with experimental observations.
KeywordVery-high-cycle Fatigue Aqueous Environment Stress Intensity Factor Plastic Zone
Subject Area疲劳与断裂力学
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Indexed ByEI
Language英语
DepartmentLNM金属材料微结构与力学性能
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48348
Collection非线性力学国家重点实验室
Corresponding AuthorHong YS(洪友士)
Recommended Citation
GB/T 7714
Qian GA,Zhou CE,Hong YS,et al. Crack propagation mechanism and life prediction for very-high-cycle fatigue of a structural steel in different environmental medias[J]. FRATTURA ED INTEGRITA STRUTTURALE,2013,7(25):7-14.
APA Qian GA,Zhou CE,Hong YS,&洪友士.(2013).Crack propagation mechanism and life prediction for very-high-cycle fatigue of a structural steel in different environmental medias.FRATTURA ED INTEGRITA STRUTTURALE,7(25),7-14.
MLA Qian GA,et al."Crack propagation mechanism and life prediction for very-high-cycle fatigue of a structural steel in different environmental medias".FRATTURA ED INTEGRITA STRUTTURALE 7.25(2013):7-14.
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