Abstract
An experimental method for impulsively loading structural rings with a simultaneously applied, short-duration pressure pulse is presented. The loading is produced by magnetic pressure between two parallel current-carrying conductors. A fast discharge capacitor bank and a current pulse shaping technique are utilized to provide a pressure pulse with a duration of about 2 μsec, a duration sufficiently short that loading can be considered impulsive for most structural ring experiments. Applicability of the method was demonstrated with an experiment where the impulse was cosinusoidally distributed over half the circumference of a thin aluminum ring. Measured strain-time histories were in close agreement with theoretical predictions.
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