Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 7, No. 25 (2013)

Is notch sensitivity a stress analysis problem?

Author and affiliation details
  • Jaime Tupiassú Pinho de Castro Corresponding author iacoviello@unicas.it
  • Marco Antonio Meggiolaro
DOI
10.3221/IGF-ESIS.25.12
Pages
Pages 79-86
Published
Published inVol. 7, No. 25 (2013)Go to the issue

Abstract

Semi–empirical notch sensitivity factors q have been widely used to properly account for notch effects in fatigue design for a long time. However, the intrinsically empirical nature of this old concept can be avoided by modeling it using sound mechanical concepts that properly consider the influence of notch tip stress gradients on the growth behavior of mechanically short cracks. Moreover, this model requires only well established
mechanical properties, as it has no need for data-fitting or similar ill-defined empirical parameters.
In this way, the q value can now be calculated considering the characteristics of the notch geometry and of the
loading, as well as the basic mechanical properties of the material, such as its fatigue limit and crack propagation threshold, if the problem is fatigue, or its equivalent resistances to crack initiation and to crack propagation under corrosion conditions, if the problem is environmentally assisted or stress corrosion cracking. Predictions based on this purely mechanical model have been validated by proper tests both in the fatigue and in the SCC cases, indicating that notch sensitivity can indeed be treated as a stress analysis problem.

Keywords

Article history

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

How to cite

APA

de Castro, J. T. P., & Meggiolaro, M. A. (2013). Is notch sensitivity a stress analysis problem? Fracture and Structural Integrity, 7(25), Pages 79–86. https://doi.org/10.3221/IGF-ESIS.25.12

IEEE

J. T. P. de Castro and M. A. Meggiolaro, “Is notch sensitivity a stress analysis problem?” Fracture and Structural Integrity, vol. 7, no. 25, pp. Pages 79–86, 2013, doi: 10.3221/IGF-ESIS.25.12.

MLA

de Castro, Jaime Tupiassú Pinho, and Marco Antonio Meggiolaro. “Is notch sensitivity a stress analysis problem?” Fracture and Structural Integrity, vol. 7, no. 25, 2013, pp. Pages 79–86. https://doi.org/10.3221/IGF-ESIS.25.12.

Chicago

de Castro, Jaime Tupiassú Pinho, and Marco Antonio Meggiolaro. 2013. “Is notch sensitivity a stress analysis problem?” Fracture and Structural Integrity 7 (25): Pages 79–86. https://doi.org/10.3221/IGF-ESIS.25.12.

Harvard

de Castro, J.T.P. and Meggiolaro, M.A. (2013) ‘Is notch sensitivity a stress analysis problem?’, Fracture and Structural Integrity, 7(25), pp. Pages 79–86. doi: 10.3221/IGF-ESIS.25.12.

Vancouver

de Castro JTP, Meggiolaro MA. Is notch sensitivity a stress analysis problem? Fracture and Structural Integrity. 2013;7(25):Pages 79-86. doi:10.3221/IGF-ESIS.25.12

BibTeX

@article{decastro2013, author = {de Castro, Jaime Tupiassú Pinho and Meggiolaro, Marco Antonio}, title = {Is notch sensitivity a stress analysis problem?}, journal = {Fracture and Structural Integrity}, year = {2013}, volume = {7}, number = {25}, pages = {Pages 79--86}, doi = {10.3221/IGF-ESIS.25.12}, url = {https://doi.org/10.3221/IGF-ESIS.25.12}, issn = {1971-8993} }

RIS

TY - JOUR AU - de Castro, Jaime Tupiassú Pinho AU - Meggiolaro, Marco Antonio TI - Is notch sensitivity a stress analysis problem? JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2013 DA - 2013/04/11 VL - 7 IS - 25 SP - Pages 79 EP - 86 DO - 10.3221/IGF-ESIS.25.12 UR - https://doi.org/10.3221/IGF-ESIS.25.12 SN - 1971-8993 ER -

Licence

Copyright © 2014 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 > >>