Detonation Velocity Measurements from a Digital High-speed Rotating-mirror Framing Camera

Report No. ARL-TN-0502
Authors: Matthew M. Biss, Kimberly Y. Spangler
Date/Pages: September 2012; 18 pages
Abstract: Rate-stick experiments were performed and digital high-speed framing-camera images were captured to determine energetic material detonation wave velocities. Rate-stick experiments consisting of 20-mm-diameter pressed pellets having a length-to-diameter (L/D) ratio of 1, with the total charge having a L/D of 10, were conducted. Digital high-speed images were recorded at rates upwards of 2.5 million frames/s using a Cordin model 570 rotating-mirror framing camera. Individual images were analyzed to determine the pixel position at which the reaction products break out from the energetic material-air interface. Position-time records were constructed and best-fit lines applied to the data to determine detonation velocities. The results of three different energetic materials are presented. Detonation velocities were found to be in good agreement with piezo-pin velocity measurements concurrently taken.
Distribution: Approved for public release
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Last Update / Reviewed: September 1, 2012