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The Effect of Interface Treatment on Ceramic Performance and Modeling Dyneema Subjected to Ballistic Impact

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Southwest Research Institute Minneapolis United States

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This work documents two separate studies one that evaluates the effect material interfaces have on the ballistic response of ceramics and one that evaluates numerical approaches to model the composite Dyneema. The first study uses several configurations where a ceramic is attached to a metal backing plate and the effect of bonding the plate to the substrate is evaluated. Two material models are used in this study, the Tonge-Ramesh TR ceramic model and the Johnson-Holmquist-Beissel JHB ceramic model. In the second study several approaches are used to evaluate the ability to model the ballistic response of Dyneema. Experimental ballistic data were provided by the Army Research Laboratory ARL and are used to evaluate the numerical approaches. All the work presented herein use a prerelease of the 2017 Beta version of the EPIC code. The remainder of this report presents the results for the bonding study followed by a discussion on modeling Dyneema.

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01 Jan 0001, 01 Jan 0001, This work was performed for Johns Hopkins University under PO: 2003301962-Mod 1 with funding provided by the Army Research Laboratory (ARL). The Author would like to thank Dr. Andrew Tonge and Dr. Richard Becker, from the ARL, for their contributions to this work. This report is a modified version of a limited distribution report submitted to the ARL December 29, 2017. This modified version has been approved for public release by the ARL; there are no limitations on its distribution.



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