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Numerical study of the effects of crack location on creep crack growth in weldment

Saber, Mohammed; Sun, Wei; Hyde, T.H.

Authors

Mohammed Saber

Wei Sun w.sun@nottingham.ac.uk

T.H. Hyde



Abstract

A numerical study on the effects of crack location on creep crack growth, in a P91 weldment, was carried out using a finite element package (ABAQUS). Models of compact tension specimens were used. The obtained results showed that, the creep crack growth in the weld metal are much higher than that in the parent metal. However, the creep crack growth in cross-weld specimens is controlled by the properties of the weakest component of the weld. This highlights the importance of the heat affected zone (HAZ) as the weakest region of the weldment. Effects of the width of HAZ are presented, too.

Citation

Saber, M., Sun, W., & Hyde, T. (2016). Numerical study of the effects of crack location on creep crack growth in weldment. Engineering Fracture Mechanics, 154, https://doi.org/10.1016/j.engfracmech.2016.01.010

Journal Article Type Article
Acceptance Date Jan 11, 2016
Online Publication Date Jan 14, 2016
Publication Date Mar 1, 2016
Deposit Date Jul 19, 2016
Publicly Available Date Jul 19, 2016
Journal Engineering Fracture Mechanics
Print ISSN 0013-7944
Electronic ISSN 0013-7944
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 154
DOI https://doi.org/10.1016/j.engfracmech.2016.01.010
Keywords P91; Damage mechanics; Finite element method; Creep crack growth
Public URL http://eprints.nottingham.ac.uk/id/eprint/35128
Publisher URL http://www.sciencedirect.com/science/article/pii/S0013794416000138
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0





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