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Material testing at high strain rate using the split Hopkinson by Marais S.T., TAit R.B., Cloete T.J., Nurick G.N. is a nonfiction available to read on EtoBox.

What is Material testing at high strain rate using the split Hopkinson about?

Blast, Impact and Survivability Research Unit (BISRU), Department of Mechanical Engineering, University of Cape Town. Latin American Journal of Solids and Structures 1 (2004), p. 319-339. This paper reports on a particularly accurate and precise physical and experimental data capture and data processing system for high strain rate testing using the split Hopkinson pressure bar. The data processing incorporated the first four Pochammer-Chree modes and proved to be suitable for the tests that were carried out. To vindicate the design of the facility, two materials were tested, namely mild steel and copper, in both the as-received and annealed conditions. The actual test data, once appropriately processed was compared with both the Johnson-Cook (JC) and Cowper-Symonds (CS) high strain rate materials models, as well as with other published data. The correlation with previously published constants for the JC and CS models was not particularly good, due to perceived differences in the stress levels and prior work hardening, heat treatment condition and microstructure of these earlier tests, as these variables affect the constitutive equation constants. Using other published data, however

Who reads Material testing at high strain rate using the split Hopkinson?

Author

Marais S.T., TAit R.B., Cloete T.J., Nurick G.N.

Language

EN

Category

nonfiction

Subjects

Engineering, Mechanical Engineering & Dynamics, Stem