Open AccessPerforation of aluminum plates by fragment simulating projectiles (FSP)
Author(s) -
Teresa Frąś,
Léon Colard,
Piotr Pawłowski
Publication year - 2015
Publication title -
the international journal of multiphysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 12
eISSN - 2048-3961
pISSN - 1750-9548
DOI - 10.1260/1750-9548.9.3.267
Subject(s) - projectile , perforation , smoothed particle hydrodynamics , materials science , finite element method , aluminium , structural engineering , fragment (logic) , ls dyna , ballistic limit , mechanics , composite material , physics , computer science , engineering , metallurgy , punching , programming language
The paper describes the ballistic impact test, in which fragment simulating projectiles (FSPs) of a 20-mm-diameter have been used against 40-mmthick plates made of an aluminum alloy AA7020-T651. To perforate plates, the projectiles must have reached a velocity higher than 890 m/s. Based on the performed ballistic test, the plugging failure mode is numerically modeled using the LS-DYNA software package. Results obtained due to the calculations in the Finite Element Method (FEM) are compared with the results from the Smoothed Particle Hydrodynamics (SPH). A condition of geometrical similarity between the target deformed experimentally and its numerical representation is introduced to evaluate the performed simulations