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A statistical model of fatigue failure incorporating effects of specimen size and load amplitude on fatigue life
Qian GA(钱桂安); Lei WS
Corresponding AuthorLei, Wei-Sheng(leiws2008@gmail.com)
Source PublicationPHILOSOPHICAL MAGAZINE
2019-05-01
Pages37
ISSN1478-6435
AbstractAmong many contributing factors, the load range, number of load cycles and specimen geometry (including configuration and size) are three major variables for fatigue failure. Most existing statistical fatigue models deal with only one or two of these three variables. According to the statistical distribution of microcracks with respect to their size and spatial location, a weakest-link probabilistic model for fatigue failure is established to incorporate the combined effect of load range, number of load cycles and specimen size. The model reveals a compound parameter of load range and number of load cycles reminiscent of the empirical formulae of fatigue stress-life curve and its correlation with another compound parameter of cumulative failure probability and specimen size. Four sets of published fatigue test data are adopted to validate the model.
KeywordFatigue probabilistic model microcrack distribution size effect
DOI10.1080/14786435.2019.1609707
Indexed BySCI ; EI
Language英语
WOS IDWOS:000471504100001
WOS KeywordHIGH-CYCLE FATIGUE ; CLEAVAGE FRACTURE ; MULTIAXIAL FATIGUE ; CRACK INITIATION ; S-N ; STRENGTH ; BEHAVIOR ; PROBABILITY ; MECHANISM ; CURVES
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
Funding ProjectNational Natural Science funding[11872364] ; CAS Pioneer Hundred Talents Program
Funding OrganizationNational Natural Science funding ; CAS Pioneer Hundred Talents Program
Classification二类
Ranking1
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79392
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Qian GA,Lei WS. A statistical model of fatigue failure incorporating effects of specimen size and load amplitude on fatigue life[J]. PHILOSOPHICAL MAGAZINE,2019:37.
APA 钱桂安,&Lei WS.(2019).A statistical model of fatigue failure incorporating effects of specimen size and load amplitude on fatigue life.PHILOSOPHICAL MAGAZINE,37.
MLA 钱桂安,et al."A statistical model of fatigue failure incorporating effects of specimen size and load amplitude on fatigue life".PHILOSOPHICAL MAGAZINE (2019):37.
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