Damage growth and recollection in aluminum under axisymmetric convergence using a helical flux compression generator
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Output type: Journal article
Author list: Kaul AM, Ivanovsky AV, Atchison WL, Petrukhin AA, Duday PV, Griego JR, Salazar M, Nadezhin SS, Tyupanova OA, Oro DM, Holtkamp DB, Rodriguez G, Tabaka LJ, Kraev AI, Skobelev AN, Westley DT, Anderson BG, Ivanov VA, Glybin AM, Kuzyaev AI, Stone JB, Payton JR, Goodwin PM, McCulloch Q, Montoya RR, Dudin VI, Zimenkov AA, Randolph RB, Fierro F, Reinovsky RE, Rousculp CL, Balandina AN, Podurets AM
Publisher: American Institute of Physics
Publication year: 2014
Journal: Journal of Applied Physics (0021-8979)
Volume number: 115
Issue number: 2
ISSN: 0021-8979
eISSN: 1089-7550
Languages: English-Great Britain (EN-GB)
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Open access status: closed
Abstract
Damage initiation and evolution, failure, and recollection processes under axisymmetric convergence were studied in the Russian-Damage experimental series, a joint effort between the Los Alamos National Laboratory and the All-Russian Institute of Experimental Physics. A helical explosive magnetic generator was used to drive a cylindrical liner shell to produce shock wave loading of a concentric cylindrical target shell. Shock wave amplitude was controlled by the liner-to-target spacing and by the magnetic field amplitude. Variation of the current pulse duration produced either a single impact, to study damage initiation through failure, or a double impact, to study failure with recollection. Both full and partial recollection of the main crack was obtained. By fielding high-precision diagnostics to measure the dynamic drive conditions and material response and by employing post-shot metallographic analysis, this project produced well-characterized experimental data across a range of damage and recollection levels for the chosen material, aluminum. We present selected experimental results to illustrate the methodology and utility of this experimental technique. (C) 2014 AIP Publishing LLC.
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5-HT1A
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