RT Journal Article
T1 Perforation mechanics of 2024 aluminium protective plates subjected to impact by different nose shapes of projectiles
A1 Rodríguez Millán, Marcos
A1 García González, Daniel
A1 Rusinek, A.
A1 Abed, F.
A1 Arias Hernández, Ángel
AB This paper focuses on the mechanical behaviour of aluminium alloy 2024-T351 under impact loading. This study has been carried out combining experimental and numerical techniques. Firstly, experimental impact tests were conducted on plates of 4 mm of thickness covering impact velocities from 50 m/s to 200 m/s and varying the stress state through the projectile nose shape: conical, hemispherical and blunt. The mechanisms behind the perforation process were studied depending on the projectile configuration used by analyzing the associated failure modes and post-mortem deflection. Secondly, a numerical study of the mechanical behaviour of aluminium alloy 2024-T351 under impact loading was conducted. To this end, a three-dimensional model was developed in the finite element solver ABAQUS/Explicit. This model combines Lagrangian elements with Smoothed Particle Hydrodynamics (SPH) elements. A good correlation was obtained between numerical and experimental results in terms of residual and ballistic limit velocities.
PB Elsevier
SN 0263-8231
YR 2018
FD 2018-02
LK https://hdl.handle.net/10016/32444
UL https://hdl.handle.net/10016/32444
LA eng
DS e-Archivo
RD 1 sept. 2024