Fracture and Structural Integrity e-ISSN 1971-8993 Open access
SI: Crack Paths Vol. 13, No. 48 (2019)

A model of energy dissipation at fatigue crack tip in metals

Author and affiliation details
  • Aleksei Vshivkov Corresponding author Institute of Continuous Media Mechanics Russian Academy of Sciences Ural Branch vshivkov.a@icmm.ru
  • Oleg Plekhov Institute of Continuous Media Mechanics Russian Academy of Sciences Ural Branch
  • Anastasiia Iziumova Institute of Continuous Media Mechanics Russian Academy of Sciences Ural Branch
  • Balasubramaniam Venkatraman Indira Gandhi Centre for Atomic Research ROR05tkzma19
DOI
10.3221/IGF-ESIS.48.43
Pages
451-458
Published
Published inVol. 13, No. 48 (2019)Go to the issue

Abstract

Experimental and numerical studies investigating fatigue crack growth were conducted on flat samples made of stainless steel AISE 304 and titanium alloy Grade 2. The heat flux from the crack tip caused by plastic deformation localization was measured using the contact heat flux sensor previously developed by the authors. This provides a possibility to find a correlation between energy dissipation and crack propagation rate under fatigue uniaxial loading with constant stress intensity factor and under biaxial loading with constant stress amplitude. The experiments with constant stress intensity factor have shown a decrease in energy dissipation at constant crack rate and R=-1 (R=0). A theoretical analysis of the stress field at the fatigue crack tip has been carried out to explain this phenomenon. Based on the obtained results, the heat flux from the crack tip is represented as the sum of two functions describing energy dissipation in monotonic and reversible plastic zones separately. It has been shown that dissipation in a reversible plastic zone is a function of the applied stress amplitude only. This causes energy dissipation to decrease at constant stress intensity factor. The proposed phenomenology was successfully verified by testing both materials under biaxial loading.

Keywords

Article history

  1. ReceivedUntil the next stage: 48 days
  2. Revision requestedUntil the next stage: 11 days
  3. RevisedUntil the next stage: 5 days
  4. AcceptedUntil the next stage: 29 days
  5. Published

How to cite

APA

Vshivkov, A., Plekhov, O., Iziumova, A., & Venkatraman, B. (2019). A model of energy dissipation at fatigue crack tip in metals. Fracture and Structural Integrity, 13(48), 451–458. https://doi.org/10.3221/IGF-ESIS.48.43

IEEE

A. Vshivkov, O. Plekhov, A. Iziumova, and B. Venkatraman, “A model of energy dissipation at fatigue crack tip in metals,” Fracture and Structural Integrity, vol. 13, no. 48, pp. 451–458, 2019, doi: 10.3221/IGF-ESIS.48.43.

MLA

Vshivkov, Aleksei, et al. “A model of energy dissipation at fatigue crack tip in metals.” Fracture and Structural Integrity, vol. 13, no. 48, 2019, pp. 451–458. https://doi.org/10.3221/IGF-ESIS.48.43.

Chicago

Vshivkov, Aleksei, Oleg Plekhov, Anastasiia Iziumova, and Balasubramaniam Venkatraman. 2019. “A model of energy dissipation at fatigue crack tip in metals.” Fracture and Structural Integrity 13 (48): 451–458. https://doi.org/10.3221/IGF-ESIS.48.43.

Harvard

Vshivkov, A., Plekhov, O., Iziumova, A. and Venkatraman, B. (2019) ‘A model of energy dissipation at fatigue crack tip in metals’, Fracture and Structural Integrity, 13(48), pp. 451–458. doi: 10.3221/IGF-ESIS.48.43.

Vancouver

Vshivkov A, Plekhov O, Iziumova A, Venkatraman B. A model of energy dissipation at fatigue crack tip in metals. Fracture and Structural Integrity. 2019;13(48):451-458. doi:10.3221/IGF-ESIS.48.43

BibTeX

@article{vshivkov2019, author = {Vshivkov, Aleksei and Plekhov, Oleg and Iziumova, Anastasiia and Venkatraman, Balasubramaniam}, title = {A model of energy dissipation at fatigue crack tip in metals}, journal = {Fracture and Structural Integrity}, year = {2019}, volume = {13}, number = {48}, pages = {451--458}, doi = {10.3221/IGF-ESIS.48.43}, url = {https://doi.org/10.3221/IGF-ESIS.48.43}, issn = {1971-8993} }

RIS

TY - JOUR AU - Vshivkov, Aleksei AU - Plekhov, Oleg AU - Iziumova, Anastasiia AU - Venkatraman, Balasubramaniam TI - A model of energy dissipation at fatigue crack tip in metals JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2019 DA - 2019/03/03 VL - 13 IS - 48 SP - 451 EP - 458 DO - 10.3221/IGF-ESIS.48.43 UR - https://doi.org/10.3221/IGF-ESIS.48.43 SN - 1971-8993 ER -

Licence

Copyright © 2019 Aleksei Vshivkov, Oleg Plekhov, Anastasiia Iziumova, Balasubramaniam Venkatraman.

Copyright 
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