Residual stress measurement method of curved surface block
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United States of America
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Jan 28, 2025
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Mar 23, 2023
app pub date -
Nov 29, 2022
filing date -
Nov 29, 2022
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Abstract
A residual stress measurement method of a curved surface block includes steps of: locating a point at which a to-be-detected curved surface of a curved surface block has a highest curvature as a to-be-detected point; applying an instrument integrating an X-ray light source and a detector, measuring the to-be-detected point by using an X-ray diffraction theory, and analyzing and calculating, in combination with a sin2 Ψ method, a strain value measured by using the instrument; and calculating, in combination with material property measurement data of the curved surface block material, a residual stress by introducing a curved surface block residual stress calculation model.
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