TY - JOUR N2 - This paper presents a numerical investigation of fracture criterion influence on perforation of high-strength 30PM steel plates subjected to 7.6251 mm Armour Piercing (AP) projectile. An evaluation of four ductile fracture models is performed to identify the most suitable fracture criterion. Included in the paper is the Modified Johnson-Cook (MJC) constitutive model coupled separately with one of these fracture criteria: the MJC fracture model, the Cockcroft-Latham (CL), the maximum shear stress and the constant failure strain models. A 3D explicit Lagrangian algorithm that includes both elements and particles, is used in this study to automatically convert distorted elements into meshless particles during the course of the computation. Numerical simulations are examined by comparing with the experimental results. The MJC fracture model formulated in the space of the stress triaxiality and the equivalent plastic strain to fracture were found capable of predicting the realistic fracture patterns and at the same time the correct projectile residual velocities. However, this study has shown that CL one parameter fracture criterion where only one simple material test is required for calibration is found to give good results as the MJC failure criterion. The maximum shear stress fracture criterion fails to capture the shear plugging failure and material fracture properties cannot be fully characterized with the constant fracture strain. L1 - http://journals.pan.pl/Content/84993/PDF/02_paper.pdf L2 - http://journals.pan.pl/Content/84993 PY - 2015 IS - No 2 EP - 179 DO - 10.1515/meceng-2015-0010 KW - high velocity perforation KW - ductile fracture criterion KW - material tests KW - numerical simulations A1 - Tria, Djalel Eddine A1 - Trębiński, Radosław PB - Polish Academy of Sciences, Committee on Machine Building VL - vol. 62 DA - 14.08.2015 T1 - On the influence of fracture criterion on perforation of high-strength steel plates subjected to armour piercing projectile SP - 157 UR - http://journals.pan.pl/dlibra/publication/edition/84993 T2 - Archive of Mechanical Engineering ER -