Perforation mechanics of 2024 aluminium protective plates subjected to impact by different nose shapes of projectiles - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Thin-Walled Structures Année : 2018

Perforation mechanics of 2024 aluminium protective plates subjected to impact by different nose shapes of projectiles

Résumé

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.

Dates et versions

hal-03346384 , version 1 (16-09-2021)

Identifiants

Citer

M. Rodriguez-Millan, D. Garcia-Gonzalez, A. Rusinek, F. Abed, A. Arias. Perforation mechanics of 2024 aluminium protective plates subjected to impact by different nose shapes of projectiles. Thin-Walled Structures, 2018, 123, pp.1-10. ⟨10.1016/j.tws.2017.11.004⟩. ⟨hal-03346384⟩
17 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More