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Correlation between single fiber pullout and tensile response of FRC composites with high strength steel fibers

Author(s): D.J. Kim, S. El-Tawil, A.E. Naaman
Paper category: Workshop
Book title: Fifth International RILEM Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC5)
Editor(s): H.W. Reinhardt, A.E. Naaman
ISBN: 978-2-35158-046-2
Pages: 67 - 76
Total Pages: 10
Language: English

This paper describes the results of experimental tests designed to correlate the pull-out response of two types of high strength steel fibers [Hooked and Torex fibers] with the tensile response of fiber reinforced cement composites using such fibers. The focus is mostly on HPFRCC or strain-hardening composites in tension and the parameter studied include fiber type. Experimental results reveal that a strong correlation exists between pull-out behavior and tensile response, especially in terms of the extent of slip before bond decays and the strain-capacity of the composite prior to localization. While the bond strength is important, the extent of slip prior to bond softening is also most critical. It is concluded that extensive slip hardening in the fiber pullout behavior leads to high strain capacity composites with multiple micro-cracks.

Online publication: 2014
Publication Type: full_text
Public price (Euros): 0.00

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