Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 13, No. 47 (2019)

Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading

Author and affiliation details
DOI
10.3221/IGF-ESIS.47.10
Pages
126-140
Published
Published inVol. 13, No. 47 (2019)Go to the issue

Abstract

A series of strain-controlled multiaxial low cycle fatigue (LCF) tests under proportional and non-proportional loading conditions have been conducted on notched specimens. Cylindrical bars of Al 6061 aluminum alloy and AISI 316L stainless steel with four values of stress concentration factors referred to the net section Kt,n were employed. The experimental results evidenced a reduction of fatigue life due to non-proportional loading. Furthermore, the crack initiation site has been detected to be moved from the notch tip in the case of steel for high values of notch radius under non-proportional loading. Stress concentration factor evaluated in the elastic field Kt,n has been included in the Itoh-Sakane parameter to evaluate the fatigue life, returning a general underestimation of fatigue life especially for high values of Kt,n. Material notch sensitivity and crack initiation position have been taken into account to further modify the model, improving the original results and showing a better assessment.

Keywords

Article history

  1. ReceivedUntil the next stage: 5 days
  2. AcceptedUntil the next stage: 8 days
  3. Published

How to cite

APA

Bressan, S., Ogawa, F., Itoh, T., & Berto, F. (2018). Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading. Fracture and Structural Integrity, 13(47), 126–140. https://doi.org/10.3221/IGF-ESIS.47.10

IEEE

S. Bressan, F. Ogawa, T. Itoh, and F. Berto, “Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading,” Fracture and Structural Integrity, vol. 13, no. 47, pp. 126–140, 2018, doi: 10.3221/IGF-ESIS.47.10.

MLA

Bressan, Stefano, et al. “Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading.” Fracture and Structural Integrity, vol. 13, no. 47, 2018, pp. 126–140. https://doi.org/10.3221/IGF-ESIS.47.10.

Chicago

Bressan, Stefano, Fumio Ogawa, Takamoto Itoh, and Filippo Berto. 2018. “Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading.” Fracture and Structural Integrity 13 (47): 126–140. https://doi.org/10.3221/IGF-ESIS.47.10.

Harvard

Bressan, S., Ogawa, F., Itoh, T. and Berto, F. (2018) ‘Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading’, Fracture and Structural Integrity, 13(47), pp. 126–140. doi: 10.3221/IGF-ESIS.47.10.

Vancouver

Bressan S, Ogawa F, Itoh T, Berto F. Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading. Fracture and Structural Integrity. 2018;13(47):126-140. doi:10.3221/IGF-ESIS.47.10

BibTeX

@article{bressan2018, author = {Bressan, Stefano and Ogawa, Fumio and Itoh, Takamoto and Berto, Filippo}, title = {Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading}, journal = {Fracture and Structural Integrity}, year = {2018}, volume = {13}, number = {47}, pages = {126--140}, doi = {10.3221/IGF-ESIS.47.10}, url = {https://doi.org/10.3221/IGF-ESIS.47.10}, issn = {1971-8993} }

RIS

TY - JOUR AU - Bressan, Stefano AU - Ogawa, Fumio AU - Itoh, Takamoto AU - Berto, Filippo TI - Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2018 DA - 2018/12/02 VL - 13 IS - 47 SP - 126 EP - 140 DO - 10.3221/IGF-ESIS.47.10 UR - https://doi.org/10.3221/IGF-ESIS.47.10 SN - 1971-8993 ER -

Licence

Copyright © 2019 Stefano Bressan, Fumio Ogawa, Takamoto Itoh, Filippo Berto.

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Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

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