STP287

    Effect of Stress Concentration on Tensile Strength of Titanium and Steel Alloy Sheet at Various Temperatures

    Published: Jan 1961


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    Abstract

    The effect of stress concentrations on the nominal tensile strength of sheet was studied for a number of ultra-high-strength steels and heat-treated titanium alloys at several test temperatures from −320 F to 800 F. Sheet specimens containing edge-notches of various root radii were employed for the investigations. The test results illustrate a wide variation in the behavior of the different alloys as a function of temperature. It appears that some steels approach an extremely brittle condition when exposed to very low temperatures. In addition, preliminary results were obtained on the room-temperature behavior of a titanium sheet alloy heat treated in a nonconventional manner to a completely brittle condition. The behavior of this alloy appears to be in general conformance with the present concepts of “ideally brittle” materials.


    Author Information:

    Sachs, George
    Associate Director and Senior Project Engineer, Syracuse University Research Institute, Syracuse, N. Y.

    Sessler, John G.
    Associate Director and Senior Project Engineer, Syracuse University Research Institute, Syracuse, N. Y.


    Paper ID: STP46980S

    Committee/Subcommittee: E28.10

    DOI: 10.1520/STP46980S


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