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Characterization of the orientation profile of steel fiber reinforced concrete
Abstract The orientation of fibers has a pronounced influence on the tensile behavior of steel fiber reinforced concrete (SFRC) and, consequently, this aspect should be considered in modeling the material constitutive law. Previous works have shown that the tensile strength of SFRC is directly related to the average orientation of the fibers. However, few studies have investigated the correlation between the variation of distribution of fiber orientation and material strength. This paper introduces a new concept of orientation profile in order to characterize fiber orientation through an unambiguous method. From the investigation on experimental data it could be observed that fiber orientation follows a Gaussian law and that the distribution and average values of single fiber orientations are correlated with each other. Conclusions from this paper are particularly relevant for the development of micromechanical models for SFRC.
Characterization of the orientation profile of steel fiber reinforced concrete
Abstract The orientation of fibers has a pronounced influence on the tensile behavior of steel fiber reinforced concrete (SFRC) and, consequently, this aspect should be considered in modeling the material constitutive law. Previous works have shown that the tensile strength of SFRC is directly related to the average orientation of the fibers. However, few studies have investigated the correlation between the variation of distribution of fiber orientation and material strength. This paper introduces a new concept of orientation profile in order to characterize fiber orientation through an unambiguous method. From the investigation on experimental data it could be observed that fiber orientation follows a Gaussian law and that the distribution and average values of single fiber orientations are correlated with each other. Conclusions from this paper are particularly relevant for the development of micromechanical models for SFRC.
Characterization of the orientation profile of steel fiber reinforced concrete
Laranjeira, F. (author) / Grünewald, S. (author) / Walraven, J. (author) / Blom, C. (author) / Molins, C. (author) / Aguado, A. (author)
Materials and Structures ; 44 ; 1093-1111
2010-11-06
19 pages
Article (Journal)
Electronic Resource
English
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