Results and Analysis from Mine Impulse Experiments Using Stereo-Digital Image Correlation

Report No. ARL-RP-0370
Authors: Craig Barker, Douglas Howle, Terry Holdren, Jeffrey Koch, and Raquel Ciappi
Date/Pages: May 2012; 18 pages
Abstract: This paper focuses on the development and analysis of experimental mine impulse data for simple v-shaped structures constructed with a top floor plate. The impulse data were collected at a small-scale test facility designed and operated by the U.S. Army Research Laboratory (ARL) Weapons and Materials Research Directorate (WMRD). The facility uses stereo-digital image correlation to track the motion of a speckled pattern painted on the top floor plate of the target. This capability allows for the measurement of the vibration motion of the top floor plate from which the global motion of the target can also be derived. Experiments were performed using three v-shaped targets with angles of 10, 20 and 30 degrees. Centerline shots were performed on each structure using two cylindrical C-4 charge sizes, 600g and 800g, each with a 1:3 height-to-diameter ratio. Off-center shots were performed for the 20 degree target with C-4 charge sizes of 800g and 1000g. Finite element modeling and statistical analysis of the experimental data was performed by the Survivability Lethality Analysis Directorate (SLAD) of ARL.
Distribution: Approved for public release
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Last Update / Reviewed: May 1, 2012