An experimental validation of residual stresses in weld clad pipelines

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

4 Citations (Scopus)

Abstract

The nature and distribution of residual stresses are invariably critical for fatigue life with dissimilar material joints often inducing high tensile residual stresses. A fatigue-resistant concept of weld cladding process pipelines, producing compressive residual stresses, is under investigation to examine how these stresses may be influenced. Simplified weld cladding simulations have successfully illustrated the development and distribution of residual stresses through the joint. The study has highlighted the importance of accurate material data for clad and substrate materials with current analysis assumptions in a simple thick-walled pipe discussed. Experimental validation, using ICHD, measured residual stresses with depth on weld clad specimens, resulting in good correlation between simulation and experiment for a nickel-chromium-based superalloy clad on low alloy carbon steel as discussed. Future work, including a full 3D representation of the
cladding process and a comparison of residual stress measurement methods, are also discussed.
LanguageEnglish
Title of host publicationResearch and Applications in Structural Engineering, Mechanics & Computation
Subtitle of host publicationProceedings of the 5th Conference on Structural Engineering, Mechanics & Computation
Pages613-617
DOIs
Publication statusPublished - 15 Aug 2013
Event5th International Conference on Structural Engineering, Mechanics & Computation - University of Cape Town, Cape Town, South Africa
Duration: 2 Sep 20134 Sep 2013

Conference

Conference5th International Conference on Structural Engineering, Mechanics & Computation
CountrySouth Africa
CityCape Town
Period2/09/134/09/13

Fingerprint

Residual stresses
Welds
Pipelines
Fatigue of materials
Dissimilar materials
Stress measurement
Alloy steel
Chromium
Nickel
Superalloys
Compressive stress
Tensile stress
Carbon steel
Pipe
Substrates
Experiments

Keywords

  • residual stresses
  • weld clad pipelines
  • fatigue assessment
  • nickel based superalloy
  • low alloy steel

Cite this

Schnier, G., Wood, J., & Galloway, A. (2013). An experimental validation of residual stresses in weld clad pipelines. In Research and Applications in Structural Engineering, Mechanics & Computation: Proceedings of the 5th Conference on Structural Engineering, Mechanics & Computation (pp. 613-617) https://doi.org/10.1201/b15963-113
Schnier, Gladys ; Wood, James ; Galloway, Alexander. / An experimental validation of residual stresses in weld clad pipelines. Research and Applications in Structural Engineering, Mechanics & Computation: Proceedings of the 5th Conference on Structural Engineering, Mechanics & Computation. 2013. pp. 613-617
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Schnier, G, Wood, J & Galloway, A 2013, An experimental validation of residual stresses in weld clad pipelines. in Research and Applications in Structural Engineering, Mechanics & Computation: Proceedings of the 5th Conference on Structural Engineering, Mechanics & Computation. pp. 613-617, 5th International Conference on Structural Engineering, Mechanics & Computation, Cape Town, South Africa, 2/09/13. https://doi.org/10.1201/b15963-113

An experimental validation of residual stresses in weld clad pipelines. / Schnier, Gladys; Wood, James; Galloway, Alexander.

Research and Applications in Structural Engineering, Mechanics & Computation: Proceedings of the 5th Conference on Structural Engineering, Mechanics & Computation. 2013. p. 613-617.

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

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AB - The nature and distribution of residual stresses are invariably critical for fatigue life with dissimilar material joints often inducing high tensile residual stresses. A fatigue-resistant concept of weld cladding process pipelines, producing compressive residual stresses, is under investigation to examine how these stresses may be influenced. Simplified weld cladding simulations have successfully illustrated the development and distribution of residual stresses through the joint. The study has highlighted the importance of accurate material data for clad and substrate materials with current analysis assumptions in a simple thick-walled pipe discussed. Experimental validation, using ICHD, measured residual stresses with depth on weld clad specimens, resulting in good correlation between simulation and experiment for a nickel-chromium-based superalloy clad on low alloy carbon steel as discussed. Future work, including a full 3D representation of the cladding process and a comparison of residual stress measurement methods, are also discussed.

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Schnier G, Wood J, Galloway A. An experimental validation of residual stresses in weld clad pipelines. In Research and Applications in Structural Engineering, Mechanics & Computation: Proceedings of the 5th Conference on Structural Engineering, Mechanics & Computation. 2013. p. 613-617 https://doi.org/10.1201/b15963-113