Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Numerical Analysis of the Contour Method for Measuring Residual Stresses in Laser Shock Peened Ti-6Al-4V Strips

  • Shin Shang-Hyon (Division of Marine Engineering System, Mokpo Maritime University)
  • Published : 2005.05.01
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Abstract

The contour method is based on the elastic superposition principle, and relies on deformations that occur when a residually stressed part is cut along a plane. During the cut, the part is constrained at a location along the cut so that deformations are restrained as much as possible. The displacement is applied to an elastic FE model of the half. When plasticity is involved in the relaxation process, the superposition principle is no longer valid, and stress error in the resulting measurement of residual stress would be caused. Residual stress states in a laser peened Ti-6Al-4V strip were taken for the FE simulation.

Keywords

References

  1. Ruschau, J. J.. John. R., Thompson. S. R. and Nicholas, T., Fatigue Crack Growth Rate Characteristics of Laser Shock Peened Ti-6AI-4V. ASME J. Engineering Materials and Technology, vol. 121, pp. 321-329. 1999 https://doi.org/10.1115/1.2812381
  2. Smith, P.R. Shepard, M. J., Prevey III, P. S. and Clauer, A. H., Effect of Power Density and Pulse Repetition on Laser Shock Peening of Ti-6AI-4V, ASME J. Materials Engineering and Performance, vol. 9, pp. 33-37, 2000 https://doi.org/10.1361/105994900770346259
  3. Rankin, J. E. and Hill, M. R., Measurement of Thickness-Average Residual Stress Near the Edge of a Thin Laser Peened Strip , ASME J. Engineering Materials and Technology, vol.125 pp. 283-293, 2003 https://doi.org/10.1115/1.1584481
  4. Prime, M. B., Cross-Sectional Mapping of Residual Stresses by Measuring the Surface Contour After a Cut , ASME J. Engineering Materials and Technology. vol. 123. pp. 162-168. 2001 https://doi.org/10.1115/1.1345526
  5. Buecker, H. F., The propagation of Cracks and the Energy of Elastic Deformation, Trans. ASME, vol. 80, pp. 1225-1230, 1958
  6. ABAQUS, Users Manual, Version 6.2, Hibbitt Karlsson & Sorensen, 2000
  7. Measurement of Residual Stresses by the Hole-drilling Strain Gage Method. Technical Note No. TN-503-4. Vishay-Measurement Group Inc.. 1-19. 1993
  8. Beaney, E. M., Accurate Measurement of Residual Stress on any Steel Using the Center Hole Method, Strain, Journal BSSM, vol. 12, pp. 99-106, 1976
  9. Beghini, M., Bertini. L., and Raffaelli, P., Numerical Analysis of Plasticity Effects in the Hole-drilling Residual Stress Measurement. J. of Testing and Evaluation. vol. 22. pp. 522-529, 1994 https://doi.org/10.1520/JTE11856J
  10. Nobre, J. P.. Kornmeier. M., Dias, A. M. and Scholtes. B., Use of the Hole-drilling Method for Measuring Residual Stresses in Highly Stressed Shot-peened Surfaces, Experimental Mechanics, vol. 40, pp. 289-297. 2000 https://doi.org/10.1007/BF02327502