Documents disponibles écrits par cet auteur

Dynamic response of retrofitted masonry walls for blast loading / Girum S. Urgessa in Journal of engineering mechanics, Vol. 136 N° 7 (Juillet 2010) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 136 N° 7 (Juillet 2010) . - pp. 858-864 Titre : Dynamic response of retrofitted masonry walls for blast loading Type de document : texte imprimé Auteurs : Girum S. Urgessa, Auteur ; Arup K. Maji, Auteur Article en page(s) : pp. 858-864 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Blast  loads  Concrete  Masonry  Finite  element  method  Fiber  reinforced  polymers  Full-Scale  tests  Walls. Résumé : A full-scale blast test was conducted on eight masonry walls reinforced with two and four layers of carbon fibers and two types of polymer matrices. The walls were then subjected to a 0.45-kg pentolite booster suspended from the ceiling of a test structure. The pressure-time history caused by the blast and the resulting displacement response were measured during the test. This paper presents a summary of the test program and the corresponding results from a nonlinear single degree of freedom analysis. The results provide a basis for determining effective means of retrofitting existing masonry walls and designing new structures to withstand blast loads. The paper also outlines a fiber-reinforced polymer retrofit design procedure for walls subjected to blast loading. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JENMDT000 [...] [article] Dynamic response of retrofitted masonry walls for blast loading [texte imprimé] / Girum S. Urgessa, Auteur ; Arup K. Maji, Auteur . - pp. 858-864. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 136 N° 7 (Juillet 2010) . - pp. 858-864 Mots-clés : Blast  loads  Concrete  Masonry  Finite  element  method  Fiber  reinforced  polymers  Full-Scale  tests  Walls. Résumé : A full-scale blast test was conducted on eight masonry walls reinforced with two and four layers of carbon fibers and two types of polymer matrices. The walls were then subjected to a 0.45-kg pentolite booster suspended from the ceiling of a test structure. The pressure-time history caused by the blast and the resulting displacement response were measured during the test. This paper presents a summary of the test program and the corresponding results from a nonlinear single degree of freedom analysis. The results provide a basis for determining effective means of retrofitting existing masonry walls and designing new structures to withstand blast loads. The paper also outlines a fiber-reinforced polymer retrofit design procedure for walls subjected to blast loading. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JENMDT000 [...]