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Evaluation of the Low-Cycle Fatigue Life of Thin Dual-Phase Steel Sheets for Automobiles Using Miniature Specimens
Ma, Zhen-Hua; Zhang, Bin; Song, Zhu-Man; Liu, Hua-Sai; Zhang, Guang-Ping
2019-11-01
Source PublicationSTEEL RESEARCH INTERNATIONAL
ISSN1611-3683
Volume90Issue:11
AbstractUsing miniature 95 mu m-thick cantilever beam specimens, the fatigue life of a thin dual-phase steel sheet is evaluated under deflection-controlled repeatedly bending fatigue (RBF) loading and compared with that of 2 mm-thick sheet specimens under strain-controlled uniaxial tension-compression fatigue (TCF) loading. The results indicate that the fatigue lives of the two types of specimens subjected to the respective two sorts of fatigue testing methods are almost identical in the low-cycle fatigue (LCF) regime, whereas the fatigue life of the 95 mu m-thick foil specimens is much lower than that of the 2 mm-thick sheet specimens in the high-cycle fatigue regime. The fatigue performance and fracture mechanism under the two types of fatigue loadings are discussed and the application of this method using miniature cantilever beam specimens under RBF loading is further explored. The finding provides a potential way to obtain credible LCF data for vehicle steel sheets using miniature cantilever beam foils under RBF loading instead of TCF loading which becomes more difficult for the very thin steel sheets with a thickness less than 2 mm.
Keywordcantilever beam bending dual-phase steels fatigue lives low-cycle fatigue miniature specimens
Indexed BySCI
Language英语
WOS IDWOS:000484731900001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80773
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Ma, Zhen-Hua,Zhang, Bin,Song, Zhu-Man,et al. Evaluation of the Low-Cycle Fatigue Life of Thin Dual-Phase Steel Sheets for Automobiles Using Miniature Specimens[J]. STEEL RESEARCH INTERNATIONAL,2019,90(11).
APA Ma, Zhen-Hua,Zhang, Bin,Song, Zhu-Man,Liu, Hua-Sai,&Zhang, Guang-Ping.(2019).Evaluation of the Low-Cycle Fatigue Life of Thin Dual-Phase Steel Sheets for Automobiles Using Miniature Specimens.STEEL RESEARCH INTERNATIONAL,90(11).
MLA Ma, Zhen-Hua,et al."Evaluation of the Low-Cycle Fatigue Life of Thin Dual-Phase Steel Sheets for Automobiles Using Miniature Specimens".STEEL RESEARCH INTERNATIONAL 90.11(2019).
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