Abstract
Results of photoelastic tests have e been projected into a technique for evaluating optimum levels of interference within pin-loaded lugs. Based upon the measurements of the variation of maximum stress with load at various levels of interference and for several lug configurations, an analysis shows that interference fits can be used to combat fatigue within pin-loaded lugs by reducing cyclic-stress levels at the critical regions.
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References
Kaman Report T-74, “M.I.T. Photoelastic Study of HOK-1 Blade Grip Lag Pin Area,” September 16, 1954.
M. Hetenyi, “Handbook of Experimental Stress Analysis,” p.880.Wiley, New York 1950.
Homelite Corp. Bulletin 51, “Homelite CR-39, Transparent Plastic Sheet,” Homelite Corp., Wilmington, Delaware, November 1, 1957.
R. J. Roark, “Formulas for Stress and Strain,” p.276, McGraw-Hill, New York, 1954.
S. Timoshenko, “Strength of Materials,”Part II, p. 241, D. Van Nostrand Company, Inc., New York, 1950).
M. M. Frocht, “Photoelasticity,”Vol. 2, p. 189, Wiley, New York, 1948.
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S. J. Ligenza was formerly with Dynamic Stress Section, Kaman Aircraft Corp., Bloomfield, Conn.
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Ligenza, S.J. Cyclic-stress reduction within pin-loaded lugs resulting from optimum interference fits. Experimental Mechanics 3, 21–28 (1963). https://doi.org/10.1007/BF02327222
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DOI: https://doi.org/10.1007/BF02327222