J. Phys. IV France
Volume 134, August 2006EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
|Page(s)||629 - 634|
|Publié en ligne||26 juillet 2006|
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 629-634
An experimental method of measuring the confined compression strength of high-performance concretes to analyse their ballistic behaviourP. Forquin1, A. Árias2 and R. Zaera2
1 Laboratory of Physics and Mechanics of Materials, University Paul-Verlaine of Metz, Ile du Saulcy, 57045 Metz Cedex 1, France
2 Department of Continuum Mechanics and Structural Analysis, University Carlos III of Madrid, 28911 Leganés, Madrid, Spain
Published online: 26 July 2006
The test known as “quasi-oedometric compression” consists of the compression of a cylindrical specimen confined in a thick vessel. In this work, an original methodology is proposed to deduce the radial stress and strain within the specimen using hoop strains measured on the external surface of the vessel, taking into account its elasto-plastic deformation. On one hand the spherical and deviatoric behaviours of two concretes are deduced. On the other hand, their ballistic behaviour is analysed using impact tests. These experiments are simulated numerically by the plasticity model of Krieg, Swenson and Taylor, and the features of the model are identified by the previous confined compression tests. The capacity of the model to describe the ballistic behaviour of such materials is shown in a comparison of the numerical simulations with the ballistic tests.
© EDP Sciences 2006