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Pullout behavior of inclined steel fiber in an ultra-high strength cementitious matrix

Title
Pullout behavior of inclined steel fiber in an ultra-high strength cementitious matrix
Authors
Lee Y.Kang S.-T.Kim J.-K.
Ewha Authors
이윤
Issue Date
2010
Journal Title
Construction and Building Materials
ISSN
0950-0618JCR Link
Citation
vol. 24, no. 10, pp. 2030 - 2041
Indexed
SCIE; SCOPUS WOS scopus
Abstract
In this study, as a part of research to characterize the tensile properties of steel fiber reinforced ultra-high strength cementitious composites, pullout tests of steel fiber were performed to evaluate the effect of fiber inclination angle on the load direction and an analytical pullout model was derived considering this effect. The fiber inclination angles considered in the pullout tests were 0°, 15°, 30°, 45°, and 60°. From the pullout tests, it was observed that the largest peak load was obtained at an angle of 30° or 45°, and the peak slip increased as the fibers were oriented at a more inclined angle. Based on the experimental results, an analytical pullout behavior model considering fiber inclination was proposed. In order to take into account the effect of fiber inclination in the pullout model, apparent shear strengths (τ(app)) and slip coefficient (β) were introduced to express the variation of pullout peak load and the augmentation of peak slip as the inclined angle increases. These variables are expressed as functions of the inclined angle (φ). © 2010 Elsevier Ltd. All rights reserved.
DOI
10.1016/j.conbuildmat.2010.03.009
Appears in Collections:
엘텍공과대학 > 건축공학전공 > Journal papers
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