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Experimental Mechanics

, Volume 21, Issue 9, pp 336–340 | Cite as

Stress-concentration factors for elliptical holes near an edge

A two-dimensional photoelastic study obtained the stress concentrations for the ends of elliptical holes normal to and near the edges of finite-width plates
  • J. B. Hanus
  • C. P. Burger
Article

Abstract

Experimental and theoretical stress-concentration factor and stress-intensity factor solutions exist for a large number of hole shapes and configurations. However, little work has been done on the interaction between holes and free edges. This paper reports the results of an experimental study which investigated elliptical holes close to each edge of a tension plate. The holes were symmetric with respect to the longitudinal axis of the models and had their major axes normal to the edge of the plate. The ellipse ratio and the distance between the center and the edge were varied.

A statistical model is developed which shows that the stress concentrationK g at both ends of the ellipses is linearly dependent on a geometric function ϕ such thatK g = αΦ + γ. The values for the function ϕ are given.

Keywords

Experimental Study Mechanical Engineer Statistical Model Fluid Dynamics Longitudinal Axis 
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.
    Peterson, R.E., Stress Concentration Factors, New York:John Wiley & Sons (1974).Google Scholar
  2. 2.
    ASME Boiler and Pressure Vessel Code, Section XI, “Rules for Inservice Inspection of Nuclear Power Plant Components,” Division I (1977).Google Scholar
  3. 3.
    Isida, M., “On the Tension of a Semi-Infinite Plate with an Elliptic Hole,”Scientific Papers of Fact. of Engineering, Tokushima University, Japan,5,75 (1955),(In Japanese).Google Scholar
  4. 4.
    Hanus, J.B., “Stress Concentration Factors Due to Flaws Near the Edge of a Plate Under Tension,” M.S. Thesis, Iowa State University (1980).Google Scholar
  5. 5.
    Instructions for Machining Two-Dimensional Models from PSM-1, Photolastic Inc., Bulletin 1-201.Google Scholar
  6. 6.
    Wahl, A.M. andBeeuwkes, Jr., R., “Stress Concentration Produced by Holes and Notches,”Trans. of the Amer. Soc. of Mech. Eng.,56,617–625 (1934).Google Scholar
  7. 7.
    Erickson, P.E. andRiley, W.F., “Minimizing Stress Concentrations Around Circular Holes in Uniaxially Loaded Plates,”Experimental Mechanics,18 (3),97–100 (1978).CrossRefGoogle Scholar
  8. 8.
    Helwig, J.T. andCouncil, K.A., editors, “SAS User's Guide,”SAS Institute, Inc., Raleigh, NC (1979).Google Scholar
  9. 9.
    Ingliss, C.E., “Stress in a Plate Due to the Presence of Cracks and Sharp Corners,”Transactions of the Royal Institution of Naval Architects,55,219–230 (1913).Google Scholar
  10. 10.
    Durelli, A.J., Parks, V.J. andFeng, H.C., “Stresses Around an Elliptical Hole in a Finite Plate Subjected to Axial Loading,”Transactions of the ASME, Series E,88,192–195 (1966).Google Scholar
  11. 11.
    Neuber, H., Theory of Notch Stresses, Ann Arbor, MI:J.W. Edwards Co. (1964).Google Scholar
  12. 12.
    Jones, N. andHozos, D., “A Study of the Stress Around Elliptical Holes in Flat Plates,”Trans of the ASME, Series B,93 688 (1971).Google Scholar
  13. 13.
    Baratta, F.I. andNeal, D.M., “Stress Concentration Factors in U-Shaped and Semi-Elliptical Notches,”J. of Strain Anal.,5,121–127 (1970).Google Scholar

Copyright information

© Society for Experimental Mechanics, Inc. 1981

Authors and Affiliations

  • J. B. Hanus
    • 1
  • C. P. Burger
    • 2
  1. 1.John Deere Product Engineering CenterWaterloo
  2. 2.Department of Engineering Science and MechanicsIowa State UniversityAmes

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