@ARTICLE{Fras_T._Application_2020,
 author={Fras, T. and Roth, C.C. and Mohr, D.},
 volume={68},
 number={No. 2 (i.a. Special Section on Computational Intelligence in Communications)},
 journal={Bulletin of the Polish Academy of Sciences Technical Sciences},
 pages={317-325},
 howpublished={online},
 year={2020},
 abstract={The following discussion concerns modelling of fracture in steel plates during an impact test, in which both target and striker are manufactured from the same material, high-strength high-hardness armour steel – Mars® 300. The test conditions (3 mm thick targets, projectiles with different nose shapes at impact velocity lower than 400 m/s) result in severely damaged components, which results in an analysis of stress states showing material failure. Numerical analyses are performed using two material models: the Johnson-Cook approach, as traditionally used in impact simulations, accounting for the effect of stress triaxiality, strain rate and temperature and for comparison, a simulation by means of the stress triaxiality and Lode angle parameter-dependent Hosford-Coulomb model, also incorporating the effect of the strain rate on a fracture initiation. The aim of the study is to analyse the mechanisms of penetration and perforation observed in the armour steel plates and validation of the modelling approaches.},
 type={Article},
 title={Application of two fracture models in impact simulations},
 URL={http://czasopisma.pan.pl/Content/116298/PDF/17D_317-325_01315_Bpast.No.68-2_29.04.20_KA_TeX.pdf},
 doi={10.24425/bpasts.2020.133120},
 keywords={armour steel, Lode angle parameter, stress triaxiality, Hosford-Coulomb model, Johnson-Cook model},
}