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TECHNICAL PAPERS

The Computation and Measurement of Residual Stresses in Laser Deposited Layers

[+] Author and Article Information
S. Finnie

145 W. 67th Street, Apt. 26D, New York, NY 10023

W. Cheng

BEAR, Inc., 2216 5th Street, Berkeley, CA 94710

I. Finnie

University of California, Berkeley, Dept. of Mech. Eng., Berkeley, CA 94720

J. M. Drezet, M. Gremaud

CALCOM SA, PSE-EPFL. 1015 Lausanne, Switzerland

J. Eng. Mater. Technol 125(3), 302-308 (Jul 10, 2003) (7 pages) doi:10.1115/1.1584493 History: Received June 10, 2002; Revised December 10, 2002; Online July 10, 2003
Copyright © 2003 by ASME
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References

Lu., J., ed., 1996, Handbook of Measurement of Residual Stress, Soc. for Exp. Mech. Inc., Fairmont Press, Lilburn, CA.
Cheng,  W., and Finnie,  I., 1985, “A Method for Measurement of Axisymmetric Residual Stresses in Circumferentially Welded Thin-Walled Cylinders,” ASME J. Eng. Mater. Technol., 106, pp. 131–185.
Cheng, W., and Finnie, I., 1994, “An Overview of the Crack Compliance Method for Residual Stress Measurement,” Proc. 4th Int. Conf. on Residual Stress, Soc. for Exp. Mech. Inc., Bethel CT, pp. 449–458.
Mason, J. C., 1984, Basic Matrix Methods, Butterworths & Co. (Publishers Ltd.).
Finnie,  I., and Cheng,  W., 1995, “Residual Stresses and Fracture Mechanics,” ASME J. Eng. Mater. Technol., 117, pp. 373–378.
Cheng,  W., and Finnie,  I., 1993, “A Comparison of the Strains Due to Edge Cracks and Cuts of Finite Width With Applications to Residual Stress Measurement,” ASME J. Eng. Mater. Technol., 115, pp. 220–226.

Figures

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Out of plane deformation observed at mid-height of cladding
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Predicted and measured values of σy(x) for a preheated specimen
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Out of plane deformation observed in mid section of the preheated specimen
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Illustration of radius R produced by “flattening” the cladding
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Internal moments required for compatible deformation at interface
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Schematic diagram of the specimen
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Configuration used for stress measurement
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Procedure used to calculate compliances for piecewise functions
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Predicted and measured values of σy(x) for a nonpreheated specimen. The order n of the Legendre polynomial series is shown in parentheses.

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