International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Crack Growth Study in Welded Sheet Metal

Abstract

This paper presents results of research on the propagation of fatigue cracks in structural steel sheet, subjected to a MIG welding process. The study was conducted on rectangular test pieces with 62.5 x 60 mm and 2 mm thick, MIG welded and non-welded. Samples were tested for fatigue crack propagation at the base material and welded metal. The results show a crack stop in the heat affected zone (HAZ), requiring greater amplitude of the stress intensity factor (KI) so the crack could propagate in a stable manner. Results indicate that the combination of adequate microstructure and residual stress in the HAZ are those factors which can stop the advance of the crack in MIG welded material. 

Country : México

1 José L. Ramírez Cruz2 Homero Jiménez Rabiela3 Benjamín Vázquez González4 Gustavo A. Bravo Acosta5 Pedro García Segura

  1. Universidad Autónoma Metropolitana, Av. San Pablo Xalpa180, Col. Reynosa Tamaulipas, Azcapotzalco, México
  2. Universidad Autónoma Metropolitana, Av. San Pablo Xalpa180, Col. Reynosa Tamaulipas, Azcapotzalco, México
  3. Universidad Autónoma Metropolitana, Av. San Pablo Xalpa180, Col. Reynosa Tamaulipas, Azcapotzalco, México
  4. Universidad Autónoma Metropolitana, Av. San Pablo Xalpa180, Col. Reynosa Tamaulipas, Azcapotzalco, México
  5. Universidad Autónoma Metropolitana, Av. San Pablo Xalpa180, Col. Reynosa Tamaulipas, Azcapotzalco, México

IRJIET, Volume 5, Issue 8, August 2021 pp. 56-60

doi.org/10.47001/IRJIET/2021.508009

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