FIFTH CANADIAN CONFERENCE ON NONDESTRUCTIVE ... - IAEA

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APPLIED STRAIN
Fig. 9. Elastic strain (measured using X-ray diffraction) as a
function of applied strain (measured using strain
gauges) in a flat beam of Inconel 600 stressed in four
point bending. Note the large compressive residual
stress in the beam (indicated by the negative intercept
with an applied strain of zero).
MEASUREMENT POSITIONS
Fig. 10. Longitudinal residual stress as a function of circumference
(relative to the tube axis) on the outside
surface of "u" bend in an Inconel 600 nuclear steam
generator tube. Measurement position 1 is at the
inside diameter of the bend, measurement, 15 at the
outside diameter.