Yarn pull-out as a mechanism for dissipating ballistic impact energy in Kevlar® KM-2 fabric -: Part II:: Predicting ballistic performance

The energy absorbed in ballistic fabrics is modeled by assuming yam pull-out, including yam uncrimping and translation, as the primary energy absorption mechanism. Using a semi-empirical model of yarn pull-out based on laboratory tests, predictions of fabric ballistic performance are compared to ballistic test results. The study demonstrates that quasi-static pull-out results can be correlated quantitatively with yarn pull-out during ballistic impact.