Consideration of weld distortion throughout the identification of fatigue curve parameters using mean stress correction

Gorash, Yevgen and Zhou, Xingguo and Comlekci, Tugrul and Mackenzie, Donald and Bayyouk, Jacob; Bailey, P. and Berto, F. and Cawte, E.R. and Roberts, P. and Whittaker, M.T. and Yates, J.R., eds. (2017) Consideration of weld distortion throughout the identification of fatigue curve parameters using mean stress correction. In: FATIGUE 2017. Engineering Integrity Society, GBR, pp. 366-377. ISBN 9780954436834

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Abstract

The effect of weld angular distortion on fatigue test specimens cut from butt welded plates is investigated by experimental and numerical methods. The weld specimens are made of a structural steel equivalent to BS 4360 grade 50D. The SN curve obtained from experimental data is used with the fatigue post-processor nCode DesignLife for fatigue life prediction. Mean stress correction is applied using the FKM approach to address the component of bending stress induced by clamping the distorted specimen, which is constant during the fatigue test. A parameter identification procedure for the SN curve and mean stress correction is proposed. The weld SN curve evaluated using the procedure is compared to the generic weld SN curves provided in the material database of nCode DesignLife and discussed.

ORCID iDs

Gorash, Yevgen ORCID: https://orcid.org/0000-0003-2802-7814

Zhou, Xingguo ORCID: https://orcid.org/0000-0001-8542-7510

Comlekci, Tugrul ORCID: https://orcid.org/0000-0002-7892-7960

Mackenzie, Donald ORCID: https://orcid.org/0000-0002-1824-1684

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• Item metadata

  Item type:	Book Section
  ID code:	61494
  Dates:	Date Event 30 June 2017 Published 20 March 2017 Accepted
  Subjects:	Technology > Mechanical engineering and machinery
  Department:	Faculty of Engineering > Mechanical and Aerospace Engineering
  Depositing user:	Pure Administrator
  Date deposited:	07 Aug 2017 11:25
  Last modified:	11 Nov 2024 15:10
  URI:	https://strathprints.strath.ac.uk/id/eprint/61494