Effect of residual stress redistribution and weld reinforcement geometry on fatigue crack growth of butt welded joints

Title

Effect of residual stress redistribution and weld reinforcement geometry on fatigue crack growth of butt welded joints

 Author

Shahani, Amir Reza (K.N. Toosi University of Technology)
Shakeri, Iman (K.N. Toosi University of Technology)
Rans, C.D. (TU Delft Structural Integrity & Composites) ORCID 0000-0001-5539-1262

 Date

2020-10

 Abstract

Redistribution of residual stress during crack growth in butt welded joint of Al5083-H111 was studied. Furthermore, the effect of post weld heat treatment and removing the weld reinforcements on fatigue crack growth rate was investigated. Three dimensional simulations of welding process and fatigue crack growth were conducted. It was shown that removing the weld reinforcements causes an increase in the residual stress. A correlation between the fatigue crack growth rate data of welded joints can be obtained with that of the parent metal by considering the weld geometry and redistribution of residual stresses in calculation of stress intensity factor.


 Subject

Fatigue crack growth
Residual stress redistribution
Stress intensity factor
Weld reinforcement geometry
Welded joint

 To reference this document use:

http://resolver.tudelft.nl/uuid:ee22b4ba-c484-48e5-be70-4265fc2c6755

 DOI

https://doi.org/10.1016/j.ijfatigue.2020.105780

 Embargo date

2022-07-03

 ISSN

0142-1123

 Source

International Journal of Fatigue, 139

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2020 Amir Reza Shahani, Iman Shakeri, C.D. Rans
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