STP271

    Tensile Shear Strength of Adhesive Bonded Metals as a Function of the Rate of Loading

    Published: Jan 1961


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    Abstract

    An interlaboratory test program was devised by ASTM Committee D-14 on Adhesives to study the effects of the rate of loading of the ultimate tensile shear strength of metal-to-metal adhesive-bonded lap-shear specimens. Two metals, three adhesives, two overlap lengths, and four rates of loading were studied. The tensile shear specimens tested at rates of stressing from 600 to 2000 psi per min showed very little change in strength due to the rate of stressing. For a given rate of stressing the rate of strain which was observed by changes in crosshead speed increased as the modulus of elasticity of adhesives decreased. It is not possible, therefore, to express one rate of stressing as being equivalent to a particular rate of strain for adhesives that have different moduli of elasticity.


    Author Information:

    George, Desmond A.
    National Bureau of Standards, Weshington, D. C.

    Butzlaff, Harry R.
    A. O. Smith Corp., Milwaukee, Win.

    Mandel, John
    National Bureau of Standards, Weshington, D. C.


    Paper ID: STP42657S

    Committee/Subcommittee: D14.80

    DOI: 10.1520/STP42657S


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