| A statistical model of fatigue failure incorporating effects of specimen size and load amplitude on fatigue life |
| Qian GA(钱桂安) ; Lei WS
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| 通讯作者 | Lei, Wei-Sheng(leiws2008@gmail.com)
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| 发表期刊 | PHILOSOPHICAL MAGAZINE
 |
| 2019-05-01
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| 页码 | 37 |
| ISSN | 1478-6435
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| 摘要 | Among 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. |
| 关键词 | Fatigue
probabilistic model
microcrack distribution
size effect
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| DOI | 10.1080/14786435.2019.1609707
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000471504100001
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| 关键词[WOS] | HIGH-CYCLE FATIGUE
; CLEAVAGE FRACTURE
; MULTIAXIAL FATIGUE
; CRACK INITIATION
; S-N
; STRENGTH
; BEHAVIOR
; PROBABILITY
; MECHANISM
; CURVES
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| WOS研究方向 | Materials Science
; Metallurgy & Metallurgical Engineering
; Physics
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| WOS类目 | Materials Science, Multidisciplinary
; Metallurgy & Metallurgical Engineering
; Physics, Applied
; Physics, Condensed Matter
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| 资助项目 | National Natural Science funding[11872364]
; CAS Pioneer Hundred Talents Program
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| 项目资助者 | National Natural Science funding
; CAS Pioneer Hundred Talents Program
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| 论文分区 | 二类
|
| 力学所作者排名 | 1
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| RpAuthor | Lei, Wei-Sheng
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/79391
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| 专题 | 非线性力学国家重点实验室
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推荐引用方式
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.
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| 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.
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| 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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