0
TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

Thermoelastic Stress Analysis: An NDE Tool for Residual Stress Assessment of Metallic Alloys

[+] Author and Article Information
A. L. Gyekenyesi

Ohio Aerospace Institute, NASA Glenn Research Center, 21000 Brookpark Road, MS 6-1, Cleveland, OH 44135

J. Eng. Gas Turbines Power 124(2), 383-387 (Mar 26, 2002) (5 pages) doi:10.1115/1.1417982 History: Received November 01, 1999; Revised February 01, 2000; Online March 26, 2002
Copyright © 2002 by ASME
Your Session has timed out. Please sign back in to continue.

References

Lesniak, J. R., and Boyce, B. R., 1994, “A High-Speed Differential Thermographic Camera,” SEM Spring Conference Proceedings, Baltimore, MD, June 6–8, pp. 491–497.
Thomson,  W. (Lord Kelvin), 1853, “On the Dynamical Theory of Heat,” Trans. - R. Soc. Edinbrgh, 20, pp. 261–283.
Machin,  A. S., Sparrow,  J. G., and Stimson,  M. G., 1987, “Mean Stress Dependence of the Thermoelastic Constant,” Strain, 23, pp. 27–30.
Dunn, S. A., Lombardo, D., and Sparrow, J. G., 1989, “The Mean Stress Effect in Metallic Alloys and Composites,” SPIE Stress and Vibration: Recent Developments in Industrial Measurement and Analysis, Vol. 1084, pp. 129–142.
Wong,  A. K., Jones,  R., and Sparrow,  J. G., 1987, “Thermoelastic Constant or Thermoelastic Parameter?” J. Phys. Chem. Solids, 48, pp. 749–753.
Wong,  A. K., Sparrow,  J. G., and Dunn,  S. A., 1988, “On the Revised Theory of the Thermoelastic Effect,” J. Phys. Chem. Solids, 49, pp. 395–400.
Lesniak, J. R., and Boyce, B. R., 1995, “Differential Thermography Applied to Structural Integrity Assessment,” Proceedings of the International Conference on Thermal Sensing and Imaging Diagnostic Applications, Vol. 2473, Orlando, FL, Apr. 19–21, pp. 179–189.
Castelli, M. G., Arnold, S. M., and Saleeb, A. F., ?, “Specialized Deformation Tests for the Characterization of a Viscoplastic Model: Application to a Titanium Alloy,” NASA TM-106268, in print.
Gyekenyesi, A. L., and Baaklini, G. Y., 1999, “Thermoelastic Stress Analysis: The Mean Stress Effect in Metallic Alloys,” Proceedings of SPIE Conference on the NDE of Aging Materials and Composites, Newport Beach, CA, Mar. 1–4.

Figures

Grahic Jump Location
Schematic diagram of TSA system (DeltaTherm 1000 User’s Manual)
Grahic Jump Location
Typical IR test image for TIMETAL 21S specimen. The rectangular box within the specimen indicates the area where the average signal was obtained. The scale displays the dimensionless digital values of the IR camera signal.
Grahic Jump Location
Temperature dependence of TSA IR signal. Data consists of eight tests utilizing three specimens. All tests normalized by corresponding IR signals at 23°C. Equation represents first-order linear regression fit of all data.
Grahic Jump Location
Mean stress dependence of IR signal for three specimens. Equation represents first-order linear regression fit of all data.
Grahic Jump Location
First harmonic IR signal output at various stress amplitudes (σm=0). The plot contains data from three specimens; each with three repetitions. Equation represents first-order linear regression fit of all data.
Grahic Jump Location
Second harmonic IR signal output at various amplitudes (σm=0). The plot contains data from three specimens; each with three repetitions. Equation represents first-order linear regression fit of all data.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In