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Multiaxial fatigue analysis of notched components using combined critical plane and critical distance approach
Liao, D; Zhu, SP; Qian GA(钱桂安)
Corresponding AuthorZhu, Shun-Peng(zspeng2007@uestc.edu.cn)
Source PublicationINTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
2019-09-01
Volume160Pages:38-50
ISSN0020-7403
AbstractCombinations of geometric discontinuities and multiaxial loads appear commonly in engineering components, which raise both stress gradient and multiaxial stress states near the notch root. This work studies the combined critical plane approach with the theory of critical distance for fatigue analysis of notched components under multiaxial loadings. Taking the Fatemi-Socie model for instance, different coupling sequence of critical plane and critical distance concepts is discussed. In particular, the influence of employing the point method and the line method of the theory of critical distance on predicting performance as well as the rationality of regarding the critical distance as a material constant or as a function related to fatigue life are also investigated. Accordingly, 8 life assessment procedures are summarized and the optimal procedure is determined and verified by experimental data of Al 7050-T7451 and GH4169 alloys. Results show that the majority of the predicted points fall within the +/- 2 scatter band according to experimental results and the procedures which employ the theory of critical distance after using the critical plane approach and regarding the critical distance as a function related to fatigue life provide better accuracy on fatigue life prediction than others.
KeywordCritical plane approach Theory of critical distance Notch Multiaxial fatigue Life prediction
DOI10.1016/j.ijmecsci.2019.06.027
Indexed BySCI ; EI
Language英语
WOS IDWOS:000485209700004
WOS KeywordPSEUDO STRESS CORRECTION ; LCF LIFE PREDICTION ; CYCLE FATIGUE ; CRACK PROPAGATION ; PHASE ; SUPERALLOY ; SPECIMENS ; CRITERIA ; BEHAVIOR ; MODEL
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding ProjectNational Natural Science Foundation of China[11672070] ; Sichuan Provincial Key Research and Development Program[2019YFG0348] ; Science and Technology Program of Guangzhou, China[201904010463] ; Opening fund of State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences
Funding OrganizationNational Natural Science Foundation of China ; Sichuan Provincial Key Research and Development Program ; Science and Technology Program of Guangzhou, China ; Opening fund of State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences
Classification一类
Ranking3
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79977
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Liao, D,Zhu, SP,Qian GA. Multiaxial fatigue analysis of notched components using combined critical plane and critical distance approach[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2019,160:38-50.
APA Liao, D,Zhu, SP,&钱桂安.(2019).Multiaxial fatigue analysis of notched components using combined critical plane and critical distance approach.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,160,38-50.
MLA Liao, D,et al."Multiaxial fatigue analysis of notched components using combined critical plane and critical distance approach".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 160(2019):38-50.
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