(1.School of Transportation,Wuhan University of Technology,Wuhan 430063,China;2.Key Laborarory of High Speed Ship Engineering,Ministry of Education,Wuhan 430063,China;)
A efficient petalled mode was developed based on the failure process and failure mechanism of the truncated cylindroconical projectile oblique penetrating. Energy consume,ballistic limit and residual velocity formulation was deduced. The result of formulation was fit well with FEM analysis.