Response of cracks in structural materials to short pulse loads |
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| Authors: | H Homma DA Shockey Y Murayama |
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| Institution: | Department of Metallurgy and Fracture Mechanics, Poulter Laboratory, SRI International, Menlo Park, CA 94025, U.S.A.;Graduate Student, Toyohashi University of Technology, Tempaku-Cho, Toyohashi, 440 Japan |
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| Abstract: | Cracks in single-edge-notched strip specimens of 4340 steel, 1018 steel, and 6061-T651 aluminum were loaded by tensile pulses of various amplitudes and durations to determine critical stresses for crack instability. The results were not well described by static fracture mechanics, but were in accord with behavior inferred from considerations of crack-tip stress intensity histories. |
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