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Updated: Jul 3, 2026

Blast Quantification Using Hopkinson Pressure Bars
Published on: July 5, 2016
An alternative method for the measurement of the mechanical impulse of a vertically directed blast
1Council for Scientific and Industrial Research, PO Box 395, Pretoria, South Africa. gturner@csir.co.za
Abstract:
An alternative method for the measurement of the total mechanical impulse of a vertically directed blast due to an explosive charge is presented. The method differs from apparatus that employ a vertically displaced mass (similar in principle to the ballistic pendulum) in that a relatively compact spring-damper system is employed to constrain the movement of the mass. The mechanical impulse is determined by integrating, with respect to time, the net force applied to the spring-damper system. The details of an explosive impulse measuring instrument rated to 12 kN s are presented.
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