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

A. Arias; P. Forquin; R. Zaera

doi:doi:10.1051/dymat/2009171

All issues

Volume 2 (2009)

10.1051/dymat/2009171

Abstract

Issue		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
DOI		https://doi.org/10.1051/dymat/2009171
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

Abstract
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.