Residual Stress Measurements in Single and Multi-Pass Groove Weld Specimens Using Neutron Diffraction and the Contour Method |
| Journal |
Materials Science Forum (Volumes 524 - 525) |
| Volume |
Residual Stresses VII |
| Edited by |
W. Reimers and S. Quander |
| Pages |
671-676 |
| DOI |
10.4028/www.scientific.net/MSF.524-525.671 |
| 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 |
| 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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