Advertisement

Effects of Rolled Plate Thickness on Anisotropy, with Application to Acoustic Stress Measurement

  • Richard B. Mignogna
  • Alfred V. Clark
  • Bhakta B. Rath
  • Carl L. Vold

Abstract

Common structural materials which are normally idealized as isotropic for most engineering purposes must be considered anisotropic for purposes of acousto-elastic stress measurement. The degree of anisotropy affects the number of moduli, as well as their departure from the usual isotropic values. For instance, rolled plates made of the same alloy, with the same temper designation, may have different moduli for different amounts of rolling. It is the purpose of this paper to determine whether the acousto-elastic constants are identical for commercial rolled plates of the same alloy and temper but different thicknesses.

Keywords

Stress Intensity Factor Thin Plate Pole Figure Plate Thickness Thick Plate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Hughes, D.S. and Kelly, J.L. “Second-Order Elastic Deformation of Solid”, Physical Rev., Vol. 92, (1953) 1145–1149.CrossRefGoogle Scholar
  2. 2.
    Rollins, F.R., “Study of Methods for Non-Destructive Measurement Residual Stress,” WADC Tech. Report 1959Google Scholar
  3. 3.
    Rollins, F.R., “Ultrasonic Methods for Non-Destructive Measurement of Residual Stress”, WADD Tech. Report 1961.Google Scholar
  4. 4.
    Sullivan, P. F and Papadakis, E.P., “Ultrasonic Double Refraction in Worked Metals”, J. Acoust. Soc. Am. Vol. 33, (1961) 1622–1624.Google Scholar
  5. 5.
    Mahadevan, P., “Effect of Frequency on Texture-Induced Wave Birefringence in Metals,” Nature, Vol. 211, (1966) 621–622.CrossRefGoogle Scholar
  6. 6.
    Crecraft, D.I., “The Measurement of Applied and Residual Stressed in Metals Using Ultrasonic Waves,” J. Sound Vib., Vol. 5, No. 1, (1967) 173–192.CrossRefGoogle Scholar
  7. 7.
    Hsu, N.N., “Acoustical Birefringence and Use of Ultrasonic Waves for Experimental Stress Analysis,” Exp. Mech., Vol. 14, No. 5, (1974) 169–176.CrossRefGoogle Scholar
  8. 8.
    Okada, K., “Stress-Acoustic Relations for Stress Measurement by Ultrasonic Technique,” J. Acoust. Soc. Jpn. (E), Vol. 1, No. 3, (1980) 193–200.CrossRefGoogle Scholar
  9. 9.
    Iwashimizu, Y. and Kubomure, K., “Stress-Induced Rotation of Polarization Directions of Elastic Waves in Slightly Anisotropic Materials,” Int. J. Solids Structures, Vol. 9, (1973) 99–114.CrossRefGoogle Scholar
  10. 10.
    Clark, A.V. and Mignogna, R.B., “A Comparison of Two Theories of Acousto-Elasticity,” Ultrasonics, Vol. 21, No. 5 (1983) 217–225.CrossRefGoogle Scholar
  11. 11.
    Clark, A.V. and Mignogna, R.B., “Acousto-Elastic Measurement of Stress and Stress Intensity Factors Around Crack Tips,” Ultrasonics, Vol. 21, No. 2, (1983) 57–64.CrossRefGoogle Scholar
  12. 12.
    Sanford, R.J., “A Critical Re-examination of the Westergaard Method for Solving Opening Mode Crack Problems,” Mechanics Research Communications, Vol. 6, (1979) 289–294.CrossRefGoogle Scholar
  13. 13.
    Sanford, R.J., et.al., “A Photoelastic Study of the Influence of Non-Singular Stresses in Fracture Test Specimens,” NUREG/CR-2179, University of MD, College Park, MD, August 1981.Google Scholar
  14. 14.
    Okada, K., “Acousto-elastic Determination of Stress in Slightly Orthotropic Materials,” Exp, Mech., Vol. 21, (1981) 461–466.CrossRefGoogle Scholar
  15. 15.
    Papadakis, E.P., “Ultrasonic Attenuation and Velocity in Three Transformation Products in Steel,” J. Appl. Phys., Vol. 35, (1964) 1474–1482.CrossRefGoogle Scholar
  16. 16.
    Papadakis, E.P., “Ultrasonic Phase Velocity by the Method Incorporating Diffraction Phase Corrections,” J. Acoust. Soc. Am., Vol, 42, (1967) 1045–1057.CrossRefGoogle Scholar
  17. 17.
    Chung, D.H., Silversmith, D.J. and Chick, B.B., “A Ultrasonis Pulse-Echo-Overlap Method for Determining Sound Velocities and Attenuation of Solids,” Rev. Sei. Instrum., Vol. 40, (1969) 718–720.CrossRefGoogle Scholar
  18. 18.
    Barrett, C.S., and Massalski, T.B. “Structures of Metals,” McGraw-Hill Book Co., New York (1966).Google Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • Richard B. Mignogna
    • 1
  • Alfred V. Clark
    • 1
  • Bhakta B. Rath
    • 1
  • Carl L. Vold
    • 1
  1. 1.Naval Research LaboratoryUSA

Personalised recommendations