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Orientation factor and number of fibers at failure plane in ring-type steel fiber reinforced concrete / C. Lee in Cement and concrete research, Vol. 40 N° 5 (Mai 2010) 

Public ISBD [article]  in Cement and concrete research > Vol. 40 N° 5 (Mai 2010) . - pp. 810–819 Titre : Orientation factor and number of fibers at failure plane in ring-type steel fiber reinforced concrete Type de document : texte imprimé Auteurs : C. Lee, Auteur ; H. Kim, Auteur Année de publication : 2012 Article en page(s) : pp. 810–819 Note générale : Bibliogr. Langues : Anglais (eng) Mots-clés : Modeling  ;  Concrete  ;  Fiber  Reinforcement  ;  Orientation  Factor Résumé : Considering the probabilistic distributions of fibers in ring-type steel fiber reinforced concrete, the orientation factor and the number of ring-type steel fibers crossing the failure plane were theoretically derived as a function of fiber geometry, specimen dimensions, and fiber volume fraction. A total number of 24 specimens were tested incorporating different fiber types, specimen geometry, and fiber volume fractions of 0.2% and 0.4%: 5 beams and 5 panels containing straight steel fibers; and 6 beams and 8 panels containing ring-type steel fibers. Measurements were made to assess the number of fibers at fractured surfaces of steel fiber reinforced concrete. The developed theoretical expressions reasonably predicted the orientation factor and the number of ring-type steel fibers at failure plane: the average and the standard deviation for the ratios of the test to theory were 1.03 and 0.26, respectively. Theoretical investigations and comparisons were made for the values of orientation factor and the number of fibers at failure plane for straight steel fibers and ring-type steel fibers. En ligne : http://www.sciencedirect.com/science/article/pii/S000888460900341X [article] Orientation factor and number of fibers at failure plane in ring-type steel fiber reinforced concrete [texte imprimé] / C. Lee, Auteur ; H. Kim, Auteur . - 2012 . - pp. 810–819. Bibliogr. Langues : Anglais (eng) in Cement and concrete research > Vol. 40 N° 5 (Mai 2010) . - pp. 810–819 Mots-clés : Modeling  ;  Concrete  ;  Fiber  Reinforcement  ;  Orientation  Factor Résumé : Considering the probabilistic distributions of fibers in ring-type steel fiber reinforced concrete, the orientation factor and the number of ring-type steel fibers crossing the failure plane were theoretically derived as a function of fiber geometry, specimen dimensions, and fiber volume fraction. A total number of 24 specimens were tested incorporating different fiber types, specimen geometry, and fiber volume fractions of 0.2% and 0.4%: 5 beams and 5 panels containing straight steel fibers; and 6 beams and 8 panels containing ring-type steel fibers. Measurements were made to assess the number of fibers at fractured surfaces of steel fiber reinforced concrete. The developed theoretical expressions reasonably predicted the orientation factor and the number of ring-type steel fibers at failure plane: the average and the standard deviation for the ratios of the test to theory were 1.03 and 0.26, respectively. Theoretical investigations and comparisons were made for the values of orientation factor and the number of fibers at failure plane for straight steel fibers and ring-type steel fibers. En ligne : http://www.sciencedirect.com/science/article/pii/S000888460900341X