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TECHNICAL PAPERS

Enhanced Measurement of Residual Stress by Speckle Correlation Interferometry and Local Heat Treating for Low Stress Levels

[+] Author and Article Information
Martin J. Pechersky

Westinghouse Savannah River Company, Aiken, SC 29808 e-mail: martin.pechersky@srs.gov

Chandra S. Vikram

The University of Alabama, Huntsville, AL 35899

J. Pressure Vessel Technol 124(3), 371-374 (Jul 26, 2002) (4 pages) doi:10.1115/1.1482086 History: Received December 07, 2000; Revised March 29, 2001; Online July 26, 2002
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References

Figures

Grahic Jump Location
Fringe pattern after 5 s, tensile load equals 50% of yield
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Fringe pattern after 15 s, tensile load equals 50% of yield
Grahic Jump Location
Fringe pattern after 5 s, tensile load equals 70% of yield
Grahic Jump Location
Fringe pattern after 15 s, tensile load equals 70% of yield
Grahic Jump Location
Fringe pattern after 5 s, tensile load equals 90% of yield
Grahic Jump Location
Fringe pattern after 15 s, tensile load equals 90% of yield
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Schematic diagram showing copper block cooling contact (gray) areas of the tensile specimen (ASTM standard E8; 0.100 in. thick×8 in. long×34 in. wide grips with reduced 1/2 in. gage area)
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50% pretension, room temperature 20.1°C; minimum temperature −54°C; tension reading crossed 65% of yield
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70% pretension, room temperature 19.9°C; minimum temperature −45°C; tension reading crossed 90% of yield
Grahic Jump Location
90% pretension, room temperature 19.9°C; minimum temperature −53.8°C, tension reading crossed 115% of yield

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