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Photoelastic analysis of I-beams with elliptic-type web cutouts

Principal objective of investigation is to establish the elastic stress distribution at the surface of the web cutouts, for various cutout shapes, when loaded with a center load in bending

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Abstract

An investigation of the fully plastic load-carrying capacity of aluminum-alloy I-beams with web cutouts leads to an interest in the elastic stress distribution for these cutouts. The photoelastic procedure was used to evaluate the elastic stress distribution at the surface of the web cutouts. The shear-difference method was used to establish the probable location of the fully plastic hinges which might be expected to form in the aluminum-alloy prototype.

The data obtained were in good agreement with experimental results obtained on aluminum-alloy I-beams.

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References

  1. Worley, Will J., and Taira, Shuji, “Inelastic Behavior of Aluminum Alloy I-Beams with Rectangular Web Section Cutouts,” Wright Air Development Center, Report TR 56-330 Pt. II, Contract No. AF 33(616)-2753, Project No. 7360, April 1956.

  2. Worley, Will J., “Inelastic Behavior of Aluminum Alloy I-Beams with Elliptical Web Section Cutouts,” Wright Air Development Center, Report TR 56-330, Pt. V, Contract No. AF 33(616)-2753, Project No. 7360, October 1956.

  3. Worley, Will J., and Brewer, Fred D., “Inelastic Behavior of Aluminum Alloy I-Beams with Elliptic-Type Web Section Cutouts,” Wright Air Development Center, Report TR 56-330, Pt. VII, Contract No. AF 33(616)-2753, Project No. 7360, September 1957.

  4. Worley, Will J., “Inelastic Behavior of Aluminum Alloy I-Beams with Web Cutouts,” University of Illinois Engng. Exp. Sta. Bull. 448, April 1958.

  5. Ruffner, Benjamin F., and Schmidt, Calvin L., “Stresses at Cutouts in Shear Resistant Webs as Determined by the Photoelastic Method,” NACA TN 984, October 1945, 45 p.

  6. Alcoa Structural Handbook, Aluminum Company of America, Pittsburgh, Pa., 1955.

  7. Frocht, Max M., Photoelasticity, John Wiley & Sons, N. Y., (1941).

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Authors and Affiliations

  1. University of Illinois, Urbana, Ill.

    Will J. Worley (Professor of Theoretical and Applied Mechanics)

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  1. Will J. Worley
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Worley, W.J. Photoelastic analysis of I-beams with elliptic-type web cutouts. Experimental Mechanics 1, 176–184 (1961). https://doi.org/10.1007/BF02323086

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  • DOI: https://doi.org/10.1007/BF02323086

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