DYMAT 2009
Volume 2, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 1215 - 1221
Section Micro-Structural Effects
Published online 15 September 2009
DYMAT 2009 (2009) 1215-1221
DOI: 10.1051/dymat/2009171

Impact damage in concrete targets subjected to perforation of high velocity metallic fragment

A. Arias1, P. Forquin2 and R. Zaera1

1  Department of Continuum Mechanics and Structural Analysis, University Carlos III of Madrid, Avda. de la Universidad 30, 28911 Leganés, Madrid, Spain
2  Laboratory of Physics and Mechanics of Materials (LPMM) University Paul Verlaine of Metz, Ile du Saulcy, 57045 Metz, France

Published online: 15 September 2009

This study deals with the effect of adding alumina particles and silica fume to concretes on mechanical impact behaviour. Two types of shape of the alumina particles were used: angular particles of 4.5 mm medium size and spherical alumina particles of 4 mm diameter. Impact tests were made at 750 m/s with 4140 AISI steel projectiles of 5.3 mm calibre and mass of 1.2 g. A post-mortem study revealed the influence of the particles on the damage of the target and on the course of the projectile. Remarkable correlation is observed between confined and unconfined strengths and mechanical impact behaviour. Impact tests showed a beneficial effect of the presence of particles on the reduction of penetration in concrete.

© EDP Sciences 2009