Deformations and Strains Surrounding Weldments Using Moire Interferometry

  • J. S. Epstein

Abstract

Research on surface deformation and strain fields surrounding flawed and intact weldments will be reviewed. The principal tool of investigation will be moire interferometry. Experimental results will be compared with existing computational solutions. Three material systems will be presented. A 304 stainless steel butt weld with a nickel filler containing diffusion bond line cracks, a 9-2 1/4 chrome K weldment containing a chromium depletion zone and a commercially pure (CP)/6A1-4V titanium diffusion bond with and without cracks. Issues such as field mixity due to heterogeneous materials, asymptotic field analysis for elastoplastic interface cracks and slip band instability emanating from a diffusion bond line will be addressed.

Keywords

Heat Affect Zone Interface Crack Bond Line Fringe Order Remote Stress 
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.

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Bibliography

  1. 1.
    Blume, J.A. and Shih, C.F., “The Singular Behavior of a Bimaterial Strip”, Proceedings. 1988 ASCE Engineering Mechanics Specialty Conf.. R.A. Heller, ed, held at Virginia Polytechnic Inst., p.72, May 23–25, 1988.Google Scholar
  2. 2.
    Chavez, S.A., Determination of Mechanical Properties in the heat Affected Zone of a Dissimilar Metal. Ph.D. Thesis, Univ. Idaho, March 1989.Google Scholar
  3. 3.
    Matic, P. and Jolles, M., The Influence of Weld metal Properties. Weld Ge ometrv and Applied Load on Weld System Performance. Naval Research Laboratory Memorandum Report 5987, 1988.Google Scholar
  4. 4.
    Prinaris, A.A. and Saouma, V.E., Elasto Plastic Fracture of Welded Plates. Bureau of Mine Structural Research Series Report 88–90, March 1988.Google Scholar
  5. 5.
    Shih, C.F. and Asaro, R.J., “Elastic Plastic Analysis of Cracks on Bimaterial Inter faces-Part I Small Scale Yielding”, ASME J. Applied Mech.. vol 55, 1989, pp. 299–319.CrossRefGoogle Scholar
  6. 6.
    Zywicz, E. and Parks, D.M., “Elastic Yield Zone Around and Interfacial Crack Tip”, ASME J. Applied Mech.. vol. 56, pp. 577–584, 1989.CrossRefGoogle Scholar
  7. 7.
    Chaing, F.P., Lu, H., and Yan, X.T., “Photoelastic Analysis of a Crack at a Bimaterial Interface”, Proceedings Int. Conf. on Frac.-7. A.Salama, ed., vol. 4, pp. 3063–3072, 1988.Google Scholar
  8. 9.
    Post, D., “Moire Interferometry”, Ch.7, Handbook on Experimental Mechanics. A. Kobayashi, ed., McGraw Hill, 1988.Google Scholar
  9. 12.
    McMeeking, R.M., “Finite Deformation Analysis of Crack Tip opening in Elastic Plastic Materials and Implications for Fracture”, J. Mech. Phvs. Sol., vol. 25, pp. 357–381, 1977.CrossRefGoogle Scholar

Copyright information

© Elsevier Science Publishers Ltd 1990

Authors and Affiliations

  • J. S. Epstein
    • 1
  1. 1.The Department of Civil EngineeringThe Georgia Institute of TechnologyAtlantaUSA

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