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Abstract
Validation of Neutron Diffraction and the Incremental Deep Hole Drilling Residual Stress Measurements of a High Strength T Butt Weld Test Piece Using the Contour Residual Stress Measurement Technique
Highlights
Ring stiffened cylindrical structures operate in some of the worst environmental conditions when they are used in naval platforms
In addition a plot of the neutron diffraction results from Pearce [3] on a curved plate segment shaped to the identical radius, and from the same shaped plate used for the base plate of this test piece has been superimposed on these results together with the theoretical longitudinal residual stress profile for the shaped base plate calculated by the formulas given in Kendrick [5]
Summary The additional longitudinal residual stress information obtained by the cutting method has enhanced the understanding of what is the impact of the specific pass placement strategy shown in Fig 1 for a T butt weld
Summary
Ring stiffened cylindrical structures operate in some of the worst environmental conditions when they are used in naval platforms These naval platforms will be subject to high stress low cycle fatigue due to change in depth. They are manufactured from high strength quenched and tempered steels and are susceptible to welding induced defects such as Hydrogen Assisted Cold Cracking (HACC) for which the presence of tensile residual stresses is considered one of the driving forces for the crack development.
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