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The photoelastic-coating technique for plastic-elastic contact

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Abstract

Steel models coated with thin birefringent layers representing transverse sections through British-Standardinch keyed shafts and hubs have been loaded in torsion. Models with two different steel shafts and clearance fits between key and keyways and between shaft and hub have been analyzed over a large range of torques.

Large plastic strains occurred at six contact positions where there are discontinuities of profile and surface contact of the chamfered key or the shaft. Contact strains have been measure, corrected for shear lag and normalized. Plastic-elastic SCF's are lower than corresponding elastic values.

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References

  1. Fessler, H. and Eissa, M., “Reduction of Elastic Stress Concentrations in End-Milled Keyed Connections,” to be published in Experimental Mechanics.

  2. Fessler, H. and Eissa, M., “Distribution of Transmitted Torque and Elastic Stresses in Keyed Connections,” 7th Int. Conf. Exp. Stress Anal., Haifa, Israel (1982).

  3. Fessler, H. and Eissa, M., “Three-dimensional Elastic Stress Distribution in End-milled Keyed Connections,” accepted for publication in JSA (1983).

  4. Fessler, H. andEissa, M., “Elastic Stresses due to Torque Transmitted Through Prismatic Part of Keyed Connections,”Part I, Standard Shapes with Different Fits and Friction, JSA,17 (2),103–111 (1982).

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  5. Fessler, H. and Eissa, M., “Elastic Stresses due to Torque Transmitted Through Prismatic Part of Keyed Connections,” Part II, Effect of Shapes with Usual Fits and Friction, accepted for publication in JSA.

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  7. Fessler, H., Newton, E.A.A. andWilson, R.W., “On the Effect of Layer Thickness in Photoelastic Reflection Techniques,”Conf. Opt. Meth. Stress Anal., Nottingham, 1963, Brit. J. Appl. Phys.,14,889–893 (Dec. 1963).

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Authors and Affiliations

  1. Department of Mechanical Engineering, University of Nottingham, University Park, NG7 2RD, Nottingham, England

    H. Fessler (Professor)

  2. Faculty of Electronic Engineering, University of Menoufia, 3295, Menoufia, Egypt

    M. Eissa (Professor)

Authors
  1. H. Fessler
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  2. M. Eissa
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Fessler, H., Eissa, M. The photoelastic-coating technique for plastic-elastic contact. Experimental Mechanics 23, 282–288 (1983). https://doi.org/10.1007/BF02319254

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  • DOI: https://doi.org/10.1007/BF02319254

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