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Dynamic Compressive Strain Rate Tests on Several Grades of Beryllium

Nicholas, T., Megan Sever

Abstract

Results of static and dynamic compression tests on several grades of beryllium and lockalloy are presented. A split Hopkinson pressure bar system, used to generate data at strain rates up to 1000/sec, is described in detail. Stress-strain curves show several different grades of beryllium to have a moderate amount of strain rate sensitivity in compression in the plastic region.

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Key concepts: Split-Hopkinson pressure bar, Strain rate, Beryllium, Dynamic range compression, Compression (physics), Materials science, Strain (injury), Bar (unit)