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SHPB인장 시험에서 알루미늄 합금의 진응력-진변형률 관계
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 Title & Authors
SHPB인장 시험에서 알루미늄 합금의 진응력-진변형률 관계
Yang, Hyeon-Mo; Min, Ok-Gi;
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The split Hokinson pressure bar(SHPB) test has been used to find the mechanical property of materials at high strain rate. A tensile split Hopkinson pressure bar test system is developed and the threaded tensile specimen and the split collar are placed between elastic bars. When the compressive elastic wave generated by a striker is transferred from the transmit bar to the incident bar, some elastic wave is reflected at the threaded parts of the specimen and the transmit bar. This reflected wave can interfere with the transmitted wave. A proper length of elastic bars and the location of strain gage in these elastic bars are determined to avoid this interference. In order to avoid the interference of elastic wave reflected at the threaded parts of specimen and elastic bar, the length of transmit bar must be longer than that of incident bar. Strain gage in transmit bar must be located as close as possible from the interface of a transmit bar and specimen. In the developed tensile SHPB test system, A12011-T3 and A17075-T6 are tested to get the true stress-strain relation in the range of strain rate at 103 /sec
SHPBT;Tensile Split Hopkinson;High Strain Rate;
 Cited by
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서송원, 민옥기, 이정민, 'SHPB 시험용 알루미늄 압축시편의 치수 효과,' 대한기계학회 1998년도 춘계학술대회 논문집 A, 339-343