Fatigue Life Estimation Model of Repaired Components with the Expanded Stop-Hole Technique-Reference-Cited by-同舟云学术

Fatigue Life Estimation Model of Repaired Components with the Expanded Stop-Hole Technique

Published:2024-02-01 Issue:2 Volume:14 Page:182
ISSN:2075-4701
Container-title:Metals
language:en
Short-container-title:Metals

Author:

Velilla-Díaz Wilmer¹^ORCID,Pinzón Roger²,Guillén-Rujano Renny¹,Pérez-Ruiz José David³,de Lacalle Luis Norberto López³^ORCID,Palencia Argemiro⁴^ORCID,Maury Heriberto²,Zambrano Habib R.²^ORCID

Affiliation:

1. Institute of Mechanical Engineering, Universidad Austral de Chile, Valdivia 5110566, Chile

2. Department of Mechanical Engineering, Universidad del Norte, Barranquilla 081007, Colombia

3. Aeronautics Advanced Manufacturing Centre, University of the Basque Country, 48170 Zamudio, Spain

4. Faculty of Engineering, Universidad Tecnológica de Bolívar, Cartagena 131007, Colombia

Abstract

Fatigue crack growth tests are conducted to assess the efficacy of the stop-hole crack repair method. This straightforward and widely adopted technique involves drilling a hole at the crack tip and subsequently enlarging it using a pin inserted into the hole. A fracture mechanics-based model is proposed to estimate the extension of fatigue life achieved through the implementation of the stop-hole technique. The model’s predictions are validated using data obtained from fatigue crack growth tests conducted on both unrepaired and repaired M(T) specimens, following the guidelines outlined in the ASTM E647 standard. The error of the fracture mechanics-based model was 1.4% in comparison with the fatigue tests.

Publisher

MDPI AG

Link

https://www.mdpi.com/2075-4701/14/2/182/pdf

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