Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Fracture Vol. 16, No. 60 (2022)

Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys

Author and affiliation details
  • Rustam Yarullin Corresponding author Institute of Power Engineering and Advanced Technologies FRC Kazan Scientific Center of RAS, Russia ORCID iD0000-0001-8975-1756 yarullin_r@mail.ru
  • Mikhail Yakovlev Institute of Power Engineering and Advanced Technologies FRC Kazan Scientific Center of RAS, Russia ORCID iD0000-0003-4529-6872
DOI
10.3221/IGF-ESIS.60.31
Pages
451-463
Published
Licence
CC BY 4.0
Published inVol. 16, No. 60 (2022)Go to the issue

Abstract

In this paper the fatigue crack growth tests were carried out on surface-crack tension (SCT) specimens, made of 7050 and Ti6Al4V alloys, with initial semi-elliptical surface cracks. Pure Mode I conditions were realized on SCT specimens with crack plane located orthogonal to the loading direction, while Mixed-mode conditions were observed on SCT specimens with inclined crack. Optical microscope measurements and the crack mouth opening displacement (CMOD) method were respectively used to monitor crack length and calculate crack depth. Current crack shape during the tests was highlighted by alternation of loading spectrum with baseline load block and a marker load block. The stress strain field along the crack front of semi-elliptical cracks in the SCT specimens was assessed by Finite Element Method (FEM) analysis. The stress intensity factors (SIFs) were calculated along crack fronts and equivalent elastic SIF formulation was used for crack growth rate assessment under mixed mode conditions. As a result, the fracture resistance parameters of aluminum and titanium alloys were obtained for two crack propagation directions under Mode I and Mixed-mode loading. The benefits of using the computational and experimental results of SCT specimen for the assessment of the surface crack growth rate in aluminum and titanium alloys under Mixed-mode loading conditions were stated.

Keywords

Article history

  1. ReceivedUntil the next stage: 1 day
  2. AcceptedUntil the next stage: 7 days
  3. Published

Statements

Funding

The authors gratefully acknowledge the financial support of the Russian Science Foundation under the Project 19-79-10160

About the authors

Mikhail Yakovlev

PhD student

How to cite

APA

Yarullin, R., & Yakovlev, M. (2022). Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys. Fracture and Structural Integrity, 16(60), 451–463. https://doi.org/10.3221/IGF-ESIS.60.31

IEEE

R. Yarullin and M. Yakovlev, “Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys,” Fracture and Structural Integrity, vol. 16, no. 60, pp. 451–463, 2022, doi: 10.3221/IGF-ESIS.60.31.

MLA

Yarullin, Rustam, and Mikhail Yakovlev. “Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys.” Fracture and Structural Integrity, vol. 16, no. 60, 2022, pp. 451–463. https://doi.org/10.3221/IGF-ESIS.60.31.

Chicago

Yarullin, Rustam, and Mikhail Yakovlev. 2022. “Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys.” Fracture and Structural Integrity 16 (60): 451–463. https://doi.org/10.3221/IGF-ESIS.60.31.

Harvard

Yarullin, R. and Yakovlev, M. (2022) ‘Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys’, Fracture and Structural Integrity, 16(60), pp. 451–463. doi: 10.3221/IGF-ESIS.60.31.

Vancouver

Yarullin R, Yakovlev M. Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys. Fracture and Structural Integrity. 2022;16(60):451-463. doi:10.3221/IGF-ESIS.60.31

BibTeX

@article{yarullin2022, author = {Yarullin, Rustam and Yakovlev, Mikhail}, title = {Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys}, journal = {Fracture and Structural Integrity}, year = {2022}, volume = {16}, number = {60}, pages = {451--463}, doi = {10.3221/IGF-ESIS.60.31}, url = {https://doi.org/10.3221/IGF-ESIS.60.31}, issn = {1971-8993} }

RIS

TY - JOUR AU - Yarullin, Rustam AU - Yakovlev, Mikhail TI - Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2022 DA - 2022/03/25 VL - 16 IS - 60 SP - 451 EP - 463 DO - 10.3221/IGF-ESIS.60.31 UR - https://doi.org/10.3221/IGF-ESIS.60.31 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2022 Rustam Yarullin, Mikhail Yakovlev.

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

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