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About empirical models predicting the missile perforation of concrete barriers / J. Baroth in European journal of environmental and civil engineering, Vol. 16 N° 9 (special issue) (Octobre 2012) 

Public ISBD [article]  in European journal of environmental and civil engineering > Vol. 16 N° 9 (special issue) (Octobre 2012) . - pp. 1074-1089 Titre : About empirical models predicting the missile perforation of concrete barriers Type de document : texte imprimé Auteurs : J. Baroth, Auteur ; L. Daudeville, Auteur ; Y. Malecot, Auteur Année de publication : 2012 Article en page(s) : pp. 1074-1089 Note générale : Génie Civil Langues : Français (fre) Mots-clés : Soft  and  hard  impacts  Reinforced  concrete  Perforation Résumé : This paper deals with empirical formulae predicting the perforation of reinforced concrete barriers. These formulae are usually validated for hard impacts only. Consequently, on the one hand, a simple method is proposed in case of soft impacts. For various tests, experimental and model predictions of perforation show a good agreement. On the other hand, recent tests at the material scale show that the behaviour of concrete under high confinement does not depend on the unconfined compressive strength of concrete after 28 days, fc 28. Therefore analytical models based on fc 28 need to be considered with caution. ISSN : 1964-8189 En ligne : http://www.tandfonline.com/doi/full/10.1080/19648189.2012.699746 [article] About empirical models predicting the missile perforation of concrete barriers [texte imprimé] / J. Baroth, Auteur ; L. Daudeville, Auteur ; Y. Malecot, Auteur . - 2012 . - pp. 1074-1089. Génie Civil Langues : Français (fre) in European journal of environmental and civil engineering > Vol. 16 N° 9 (special issue) (Octobre 2012) . - pp. 1074-1089 Mots-clés : Soft  and  hard  impacts  Reinforced  concrete  Perforation Résumé : This paper deals with empirical formulae predicting the perforation of reinforced concrete barriers. These formulae are usually validated for hard impacts only. Consequently, on the one hand, a simple method is proposed in case of soft impacts. For various tests, experimental and model predictions of perforation show a good agreement. On the other hand, recent tests at the material scale show that the behaviour of concrete under high confinement does not depend on the unconfined compressive strength of concrete after 28 days, fc 28. Therefore analytical models based on fc 28 need to be considered with caution. ISSN : 1964-8189 En ligne : http://www.tandfonline.com/doi/full/10.1080/19648189.2012.699746