Residual Stress Measurements in Single and Multi-Pass Groove Weld Specimens Using Neutron Diffraction and the Contour Method

M. Kartal; Mark Turski; Greg Johnson; Michael E. Fitzpatrick; S. Gungor; Philip J. Withers; Lyndon Edwards

doi:10.4028/www.scientific.net/MSF.524-525.671

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HomeMaterials Science ForumMaterials Science Forum Vols. 524-525Residual Stress Measurements in Single and...

Residual Stress Measurements in Single and Multi-Pass Groove Weld Specimens Using Neutron Diffraction and the Contour Method

Abstract:

This paper describes the measurement of longitudinal residual stresses within specially designed 200x180x25mm groove weld specimens. The purpose of these measurements was to compare the residual stress field arising from single and multi-pass weld beads laid down within the constraint of a groove in order to validate finite element simulations of the welding process. Measurements were made over the cross section at the mid-bead length, utilising the relatively new Contour method and neutron diffraction. Results from these measurements indicate a larger peak tensile longitudinal residual stresses within the weld region of the multi-pass weld sample. Good agreement is found between both techniques.

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Periodical:

Materials Science Forum (Volumes 524-525)

Pages:

671-676

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.524-525.671

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Online since:

September 2006

Authors:

M. Kartal, Mark Turski, Greg Johnson, Michael E. Fitzpatrick, S. Gungor, Philip J. Withers, Lyndon Edwards

Keywords:

Contour Method, Neutron Diffraction, Residual Stress, Welding

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