A technique is described for the rapid determination of residual stresses through the combined use of hole drilling and holographic interferometry. A small diameter blind hole is drilled into a part containing residual stresses and the displacement field caused by localized stress relief is registered using holographic interferometry instead of a strain gage rosette. The optical interference fringe pattern created in the hologram upon release of stress is analyzed by a fringe counting method that allows stresses to be computed quickly. A comparison of stresses determined by the holographic hole drilling technique with different known biaxial residual stresses is shown.
Issue Section:
Technical Papers
1.
ASTM E837-94, 1994, “Standard Test Method for Determining Residual Stresses by the Hole-Drilling Strain-Gage Method,” Annual Book of ASTM Standards, Section 3, Vol. 03.01, American Society for Testing and Materials, Philadelphia, PA, pp. 643–649.
2.
Kabiri
M.
1986
, “Toward More Accurate Residual-Stress Measurements by the Hole-Drilling Method: Analysis of Relieved-Strain Coefficients
,” Experimental Mechanics
, Vol. 26
, No. 1
, pp. 14
–21
.3.
Makino
A.
Nelson
D.
1994
, “Residual Stress Determinaion by Single-Axis Holographic Interferometry and Hole Drilling, Part I: Theory
,” Experimental Mechanics
, Vol. 34
, No. 1
, pp. 66
–78
.4.
Makino, A., 1994, “Residual Stress Measurement Using Holographic Interferometry and Hole Drilling,” PhD dissertation, Mech. Engr. Dept., Stanford University, Stanford, CA.
5.
Nelson
D.
Fuchs
E.
Makino
A.
Williams
D.
1994
, “Residual Stress Determination by Single-Axis Holographic Interferometry and Hole Drilling, Part II: Experiments
,” Experimental Mechanics
, Vol. 34
, No. 1
, pp. 79
–88
.6.
Nickola, W. E., 1984, “Post-Yield Effects on Center-Hole Residual Stress Measurements,” Proc. V Int. Congress on Exp Mech., June 10–15, 1984, Montre´al, SESA, Brookfleld Ctr., CT, pp. 126–136.
7.
Ostrovsky, Yu. I., Shchepinov, V. P., and Yakovlev, V. V., 1991, Holographic Interferometry in Experimental Mechanics, Springer-Verlag, Berlin, Germany.
8.
Schajer
G. S.
1981
, “Application of Finite Element Calculations to Residual Stress Measurements
,” ASME JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY
, Vol. 103
, No. 2
, pp. 157
–163
.9.
Schajer
G. S.
1988
, “Measurement of Non-Uniform Residual Stresses Using the Hole-Drilling Method. Part I—Stress Calculation Procedures
,” ASME JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY
, Vol. 110
, No. 4
, pp. 338
–343
.10.
Stetson
K. A.
1974
, “Fringe Interpretation for Hologram Interferometry of Rigid-Body Motions and Homogeneous Deformations
,” Journal of the Optical Society of America
, Vol. 64
, No. 1
, pp. 1
–10
.11.
Vest, C. M., 1979, Holographic Interferometry, Wiley, New York.
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