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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Cement and Concrete ...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Cement and Concrete Composites
Article . 2019 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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A new physical model for empirical fiber snubbing effect in cementitious composites based on large deflection beam theory

Authors: Jie Yao; Christopher K.Y. Leung;

A new physical model for empirical fiber snubbing effect in cementitious composites based on large deflection beam theory

Abstract

Abstract A single fiber crosses a crack in Strain-Hardening Cementitious Composites (SHCC) can be either perpendicular or inclined to the crack surface. When the single fiber pullout test is performed on inclined polymeric fibers, the peak pull-out load is commonly observed to increase with the inclination angle. Usually the fiber is modeled as a flexible string passing over a frictional pulley, and the observed phenomenon is explained by the high local friction (or snubbing effect) near the fiber exiting point. However, such an explanation is not perfectly satisfactory because the bending stiffness of the fiber is not necessarily negligible and the pulley does not physically exist. In this study, a new model which treats the fiber as a beam and emphasize on the large deflection effect of the fiber is developed. The entire fiber bridging stress vs crack opening relationship can be derived and the empirical snubbing effect is also revealed, even without assuming the presence of a frictional pulley. Moreover, at small crack opening, the predicted trend of bridging force with inclination angle from the new model is in better agreement with test results than the snubbing friction model.

Country
China (People's Republic of)
Keywords

Inclined fiber, Modeling, Strain-hardening cementitious composites, Micromechanics, Large deflection, Snubbing effect

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Powered by OpenAIRE graph
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
19
Top 10%
Top 10%
Top 10%
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