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Experimental Mechanics

, Volume 24, Issue 3, pp 233–242 | Cite as

Determination of stress-intensity factors of fillet-welded T-joints by computer-assisted photoelasticity

  • C. L. Tsai
  • S. K. Park
Article

Abstract

Fillet-welded T-joints with crack-like discontinuities are analyzed using the photoelasticity method. Stress-intensity factors of opening modes are determined for undercut, overlap and center-line crack of fillet joints with respect to the various loading conditions and the weld dimensions. The photoelastic analysis uses a 20-point overdeterministic approach. The accuracy of fringe measurement is obtained by iteration of the measured results on a pattern-recognition software.

Keywords

Mechanical Engineer Fluid Dynamics Open Mode Undercut Weld Dimension 
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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References

  1. 1.
    Post, D., “Photoelastic Stress Analysis for An Edge Crack in The Tensile Field,”Proc. SESA,12 (1),99–116 (1954).MathSciNetGoogle Scholar
  2. 2.
    Wells, A.A. andPost, D., “The Dynamic Stress Distribution Surrounding A Running Crack—A Photoelastic Analysis,”Proc. SESA,16 (1),69–92,Brookfield Center,CT (1958).Google Scholar
  3. 3.
    Irwin, G.R., Discussion of Ref. 2, Proc. SESA,16 (1),93–96,Brookfield Center, CT (1958).Google Scholar
  4. 4.
    Bradley, W.B., “A Photoelastic Investigation of Dynamic Brittle Fracture,” PhD Thesis, Univ. of Washington (1969).Google Scholar
  5. 5.
    Schroedl, M.A. and Smith, C.W., “Local Stress Near Deep Surface Flaws Under Cylindrical Bending Fields — Progress in Flaw Growth and Fracture Toughness Testing,” ASTM STP 536, ASTM, 45–63 (1973).Google Scholar
  6. 6.
    Sanford, R.J. andDally, J.W., “A General Method for Determining Mixed-Mode Stress-Intensity Factor from Isochromatic Fringe Patterns,”J. Eng. Fract. Mech.,11,621–633 (1979).Google Scholar
  7. 7.
    Tada, H., Paris, P.C. andIrwin, G.R., The Stress Analysis Cracks Handbook, Del Res. Corp., Hellertown, PA (1973).Google Scholar
  8. 8.
    Tsai, C.L., “Fitness-for-Service Design of Fillet Welded Joints,” Res. Rep. for Center for Welding Res., The Ohio State Univ. (1984).Google Scholar
  9. 9.
    Dally, J.W. andSanford, R.J., “Classification of Stress-intensity Factors from Isochromatic-fringe Patterns,”Experimental Mechanics,18 (12),441–448 (1978).CrossRefGoogle Scholar
  10. 10.
    Rolfe, S.T. andBarsom, J.M., Fracture and Fatigue in Structures, Prentice-Hall, Inc., Englewood Cliffs, NJ (1977).Google Scholar

Copyright information

© Society for Experimental Mechanics, Inc. 1984

Authors and Affiliations

  • C. L. Tsai
    • 1
  • S. K. Park
    • 2
  1. 1.Department of Welding EngineeringThe Ohio State UniversityColumbus
  2. 2.University of Illinois, Urbana-ChampaignUrbana

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