Transverse Compression Response of a Multi-Ply Kevlar Vest

Report No. ARL-TR-3343
Authors: Martin N. Raftenberg, Michael J. Scheidler, and Paul Moy
Date/Pages: September 2004; 34 pages
Abstract: Each of the two 38 x 38-cm square panels, consisting of 28 plies of plain-woven 600-denier Kevlar KM2 and a Cordura case, was loaded in quasistatic, transverse compression by means of an Instron machine. Constitutive assumptions were introduced to allow for calculation of Green-St. Venant strain, second Piola-Kirchhoff stress, and Cauchy stress. A least squares fit in the form of a rational function was obtained for each second Piola-Kirchhoff stress vs. Green-St. Venant strain curve.
Distribution: Approved for public release
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Last Update / Reviewed: September 1, 2004