Development of Electromagnetic Ring Expansion Apparatus for High-Strain-Rate Test

Abstract:

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The structure of the experimental set-up for electromagnetic ring expansion and its electric properties are presented in the paper. While earlier expanding ring apparatuses were usually equipped with shaped-charge, thyratron or ignitron switches, we propose to use the impulse high-voltage thyritor as a switch to discharge capacitor bank. Furthermore, the preliminary results of the copper ring fragmentation properties are presented for different initial charge of capacitor bank (0,5 ÷ 2 kV). On the basis of our calculated and preliminary experimental data of the ring motion for expansion at 2 kV, we estimated the radial ring velocity, which was close to 250 m/s.

Info:

Periodical:

Solid State Phenomena (Volumes 147-149)

Edited by:

Zdzislaw Gosiewski and Zbigniew Kulesza

Pages:

645-650

DOI:

10.4028/www.scientific.net/SSP.147-149.645

Citation:

J. Janiszewski and W. Pichola, "Development of Electromagnetic Ring Expansion Apparatus for High-Strain-Rate Test", Solid State Phenomena, Vols. 147-149, pp. 645-650, 2009

Online since:

January 2009

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Price:

$35.00

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