Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 11, No. 41 (2017)

On short cracks that depart from elastoplastic notch tips

Author and affiliation details
  • Verônica Miquelin Machado Corresponding author vetiksm@gmail.com
  • Jaime Tupiassú Pinho de Castro
  • Marco Antonio Meggiolaro
DOI
10.3221/IGF-ESIS.41.32
Pages
Pages 236-244
Published
Published inVol. 11, No. 41 (2017)Go to the issue

Abstract

The behavior of short cracks that depart from elastoplastic notch tips is modeled to estimate the stresses required to initiate and to propagate cracks in notched structural components, and to evaluate the size of tolerable crack-like defects under general loading conditions. This analysis can model both fatigue and environmentally assisted cracking problems; can evaluate notch sensitivity in both cases; and can as well be used to establish design or acceptance criteria for tolerable non-propagating crack-like defects in such cases. The growth of short cracks is assumed driven by the applied stresses and by the stress gradient ahead the notch tip, and supported by the material resistances to crack initiation and to long crack propagation by fatigue or EAC. In the elastoplastic case, the stress gradient ahead of the notch tip is quantified by a J-field to consider the short crack behavior. The tolerable short crack predictions made by this model are evaluated by suitable fatigue and EAC tests of notched specimens specially designed to start nonpropagating cracks from the notch tips, both under elastic and elastoplastic conditions.

Keywords

Article history

  1. ReceivedUntil the next stage: 0 days
  2. AcceptedUntil the next stage: 0 days
  3. Published

How to cite

APA

Machado, V. M., Pinho de Castro, J. T., & Meggiolaro, M. A. (2017). On short cracks that depart from elastoplastic notch tips. Fracture and Structural Integrity, 11(41), Pages 236–244. https://doi.org/10.3221/IGF-ESIS.41.32

IEEE

V. M. Machado, J. T. Pinho de Castro, and M. A. Meggiolaro, “On short cracks that depart from elastoplastic notch tips,” Fracture and Structural Integrity, vol. 11, no. 41, pp. Pages 236–244, 2017, doi: 10.3221/IGF-ESIS.41.32.

MLA

Machado, Verônica Miquelin, et al. “On short cracks that depart from elastoplastic notch tips.” Fracture and Structural Integrity, vol. 11, no. 41, 2017, pp. Pages 236–244. https://doi.org/10.3221/IGF-ESIS.41.32.

Chicago

Machado, Verônica Miquelin, Jaime Tupiassú Pinho de Castro, and Marco Antonio Meggiolaro. 2017. “On short cracks that depart from elastoplastic notch tips.” Fracture and Structural Integrity 11 (41): Pages 236–244. https://doi.org/10.3221/IGF-ESIS.41.32.

Harvard

Machado, V.M., Pinho de Castro, J.T. and Meggiolaro, M.A. (2017) ‘On short cracks that depart from elastoplastic notch tips’, Fracture and Structural Integrity, 11(41), pp. Pages 236–244. doi: 10.3221/IGF-ESIS.41.32.

Vancouver

Machado VM, Pinho de Castro JT, Meggiolaro MA. On short cracks that depart from elastoplastic notch tips. Fracture and Structural Integrity. 2017;11(41):Pages 236-244. doi:10.3221/IGF-ESIS.41.32

BibTeX

@article{machado2017, author = {Machado, Verônica Miquelin and Pinho de Castro, Jaime Tupiassú and Meggiolaro, Marco Antonio}, title = {On short cracks that depart from elastoplastic notch tips}, journal = {Fracture and Structural Integrity}, year = {2017}, volume = {11}, number = {41}, pages = {Pages 236--244}, doi = {10.3221/IGF-ESIS.41.32}, url = {https://doi.org/10.3221/IGF-ESIS.41.32}, issn = {1971-8993} }

RIS

TY - JOUR AU - Machado, Verônica Miquelin AU - Pinho de Castro, Jaime Tupiassú AU - Meggiolaro, Marco Antonio TI - On short cracks that depart from elastoplastic notch tips JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2017 DA - 2017/06/28 VL - 11 IS - 41 SP - Pages 236 EP - 244 DO - 10.3221/IGF-ESIS.41.32 UR - https://doi.org/10.3221/IGF-ESIS.41.32 SN - 1971-8993 ER -

Licence

Copyright © 2017 Fracture and Structural Integrity.

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

Open Access Statement

Fracture and Structural Integrity (F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit, providing a link to the license, and indicating if changes were made.

Similar articles

Most read articles by the same author(s)

1 2 > >>