Evaluation of the IMPAC66 Shock Test Machine, Serial Number 118

Report No. ARL-TR-2840
Authors: Marshal A. Childers
Date/Pages: October 2002; 27 pages
Abstract: The purpose of this evaluation was to calibrate and identify the performance capabilities of an MTS IMPAC66 shock test machine, Serial Number 118. This system is situated in Lab 1252 in Building 4600 of the U.S. Army Research Laboratory (ARL) at Aberdeen Proving Ground, Maryland, and is used by ARL's Weapons and Materials Research Directorate. The IMPAC66 shock test machine was designed to simulate high acceleration and/or high velocity scenarios. Shock tests performed at ARL are used to determine the survivability of electronic sensing packages when these are exposed to various launching environments. Typical accelerations associated with gun-launched munitions can range from 1500 g's to 30,000 g's2. The results provided in this report will be used as a reference for the shock test applications performed within ARL. This work will also be used as a benchmark for post-refurbishment and post-maintenance performance verification. The IMPAC66 shock test machine, Serial Number 118, was evaluated for calibration and performance with respect to current usage at ARL and for future reference in testing and maintenance functions. Several series of experiments were conducted to determine the effects of felt programmer thickness, four cut-off frequencies, and two accelerometer measurement ranges.
Distribution: Approved for public release
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Last Update / Reviewed: October 1, 2002