Steel spheres 11 mm in diameter struck hemispherical and cylindrical targets at 3 km/s. Materials were AlSl 1020 and 4340. Tensile strength of these materials at strain rates of .0001/s to 1000/s was determined and important rate effects were observed. Peak particle velocity as a function of range and angle was measured by a fly-off plate technique. Peak stress was calculated from these data. Failure modes were determined from post-impact analysis of targets. Targets less than 6 cm diameter were totally fragmented. 8 cm diameter hemispheres failed in bi-axial tension. 4 cm thick hemispheres failed by planar spall. Large targets did not undergo gross tensile failure. (Kursetz)


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    Title :

    Impact induced tensile failures in steel


    Additional title:

    Aufprallausgeloeste Versagensfaelle der Spannungsbereiche bei Staehlen


    Contributors:
    Bless, S.J. (author) / Barber, J.P. (author)

    Published in:

    Publication date :

    1979


    Size :

    55 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English




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