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- W2892218981 abstract "A methodology for constructing of dynamic deformation diagrams with the direct impact method on a gas dynamic vertical test machine is developed and theoretically verified. The approach of the contact surfaces of the striker and the measuring rod is determined from the equation of motion of the striker as an absolutely rigid body due to the effect of the stress (strain) pulse arising in the measuring rod. The methodology is verified by reconstructing the given deformation diagram when using computer modeling of an axisymmetric problem accounting for the wave processes in the striker−specimen−measuring rod, instead of a physical experiment. The main errors in determining (reconstructing) viscoplastic properties of materials are shown to be determined by the accuracy of experimental measurements. For materials with low temperature of melting, it is necessary, for large deformations, to account for the temperature change due to the dissipation of work for plastic deformations. Key words: computer modeling, dynamic deformation diagrams, direct impact method, viscoplastic materials, large deformations, verification." @default.
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- W2892218981 date "2009-01-01" @default.
- W2892218981 modified "2023-09-27" @default.
- W2892218981 title "DEVELOPMENT AND VERIFICATION OF THE DIRECT IMPACT METHODFOR IDENTIFYING VISCOPLASTIC PROPERTIES OF MATERIALSIN EXPERIMENTS ON A GAS DYNAMIC VERTICAL TEST STAND" @default.
- W2892218981 doi "https://doi.org/10.32326/1814-9146-2009-71-1-184-192" @default.
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