Conductivity measurements of explosively shocked aluminum and ofhc copper used for armature material in a magnetic flux compression generator

D. Hemmert, J. Mankowski, J. Rasty, A. Neuber, J. Dickens, M. Kristiansen

Research output: Contribution to conferencePaper

1 Scopus citations

Abstract

Modeling and characterization of a Magnetic Flux Compression Generator (MFCG) requires detailed knowledge of the changes in conductivity of the MFCG materials during the shock-loading phase. In the studies reported here, a thin metallic strip is shocked with an explosively generated shock wave produced from a charge of Composition C-4. The shock wave is intended to simulate the shock wave and pressures produced in MFCG research currently being conducted at Texas Tech University. These pressures are estimated to be between 1 and 3 GPa. The experimental setup is arranged so that the shapes of the metallic strip and shock front are the same, as confirmed using optical fibers. This was to ensure that the test sample was shocked uniformly. The metallic test strip is pulsed with a 70 A current pulse during application of the shock wave. The current and voltage across the test sample are measured directly to determine the change in conductivity. Pressure measurements are conducted in separate tests under similar conditions using strain gauges. The results are then compared to results determined previously using a Split Hopkinson Pressure Bar apparatus (SHPB).

Original languageEnglish
Pages1073-1076
Number of pages4
StatePublished - 2003
Event14th IEEE International Pulsed Power Conference - Dallas, TX, United States
Duration: Jun 15 2003Jun 18 2003

Conference

Conference14th IEEE International Pulsed Power Conference
CountryUnited States
CityDallas, TX
Period06/15/0306/18/03

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    Hemmert, D., Mankowski, J., Rasty, J., Neuber, A., Dickens, J., & Kristiansen, M. (2003). Conductivity measurements of explosively shocked aluminum and ofhc copper used for armature material in a magnetic flux compression generator. 1073-1076. Paper presented at 14th IEEE International Pulsed Power Conference, Dallas, TX, United States.