| Titre : | Strength and damage of concrete under high triaxial loading (2011) |
| Auteurs : | Yann Malécot, Auteur ; Daudeville, Laurent, Auteur ; Fabrice Dupray, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | European journal of environmental and civil engineering (Vol. 14 N° 6-7, Juin 2010) |
| Article en page(s) : | pp. 777-803 |
| Note générale : | Génie Civil |
| Langues : | Anglais |
| Index. décimale : | 624 (Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes) |
| Tags : | Concrete Triaxial test High confinement Mesoscale modeling Young's modulus |
| Résumé : | This study focuses on identifying concrete behavior under severe loading (near field detonation or ballistic impacts). In order to reproduce high stress levels with wellcontrolled loading paths, static tests are carried out on concrete samples by mean of a very high-capacity triaxial press. Experimental results indicate a sizeable change in concrete behavior with confining pressure. At low pressure values, the concrete exhibits brittle behavior with failure caused by a localized damage mechanism. In contrast, at high confining pressures, the concrete becomes a ductile material, and failure is associated with diffuse material damage. These tests also show an evolution of the elastic characteristics of concrete. A numerical modeling of these previous experiments is performed at a mesoscopic scale. It provides a reproduction of the main characteristics of concrete behavior under high confinement, both qualitatively and quantitatively. |
| DEWEY : | 624 |
| ISSN : | 1964-8189 |
| En ligne : | http://ejece.revuesonline.com/resnum.jsp |
