The fracture energy of materials under pulse microsecond-scale loading |
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| Authors: | A A Gruzdkov S I Krivosheev Yu V Petrov |
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| Institution: | (1) Dinamika Research Center, St. Petersburg State University, Petrodvorets, 198504, Russia |
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| Abstract: | Based on the results of fracture in polymethyl methacrylate and a spheroplastic using a magnetic-pulse setup, the specific work of the formation of a new surface is estimated, which is similar to Griffith’s surface energy for quasi-static tests. The value obtained is greater than the corresponding value determined from the quasi-static tests by an order of magnitude and tends to increase as the loading time decreases. |
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