2025 Volume 2025 Pages 20250008
The purpose of this study is to develop a more general and accurate empirical formula of ballistic limit velocity than the conventionally used Ballistic Research Laboratory (BRL) formula. After presenting a unified description of the conventional empirical formulae, an empirical formula including fitting parameters is proposed. Then, the parameters of the proposed formula are determined using the results of perforation tests and finite element analyses considering the strain rate dependence of material strength and fracture in SUS304 steel plates, and it is shown that it is possible to develop a penetration evaluation equation that enables highly accurate evaluation than the BRL formula.
