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- W1480777862 abstract "An experimental procedure is reported to perform shear tests on specimens held under moderately high hydrostatic pressures (on the order of 10 GPa). The mechanical behavior of materials subjected to such pressures, varies substantially from that observed at atmospheric pressure or even pressures typically attained during industrial processing. These differences must be incorporated into models such as the Steinberg-Guinan hardening model or discrete dislocation dynamics simulations. The goal of the proposed research is to develop and implement testing procedures that experimentally determine pressure-dependent dislocation mobilities in oriented single crystals of the BCC transition metals. These experiments will provide calibration data for models of materials subjected to extreme pressures and will assist in model validation. This paper reports the development of the experimental procedures. A thin foil of polycrystalline Ta was used to perform the initial experiments under hydrostatic pressures ranging from 2.1 to 4.2 GPa. Both yielding and hardening behavior are observed to be sensitive to the imposed pressure." @default.
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- W1480777862 date "2004-02-17" @default.
- W1480777862 modified "2023-10-17" @default.
- W1480777862 title "Measurement of Shear Strength in BCC Materials Subjected to Moderate Pressures" @default.
- W1480777862 doi "https://doi.org/10.2172/15013904" @default.
- W1480777862 hasPublicationYear "2004" @default.
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