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Article

Flexural Characteristics of Functionally Graded Fiber-Reinforced Cementitious Composite with Polyvinyl Alcohol Fiber

1
Division of Engineering Mechanics and Energy, University of Tsukuba, Tsukuba 305-8577, Japan
2
Degree Programs in Systems and Information Engineering, University of Tsukuba, Tsukuba 305-8577, Japan
3
Department of Engineering Mechanics and Energy, University of Tsukuba, Tsukuba 305-8577, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Jian-Guo Dai
J. Compos. Sci. 2021, 5(4), 94; https://doi.org/10.3390/jcs5040094
Received: 22 March 2021 / Revised: 28 March 2021 / Accepted: 30 March 2021 / Published: 1 April 2021
(This article belongs to the Special Issue High Performance Fiber-Reinforced Cementitious Composites)
The objective of this study is to investigate the flexural characteristics of functionally graded fiber-reinforced cementitious composite (FG-FRCC) concerning the fiber volume fraction (Vf) varying in layers and the layered effect in bending specimens. The FG-FRCC specimens, in which Vf increases from 0% in the compression zone to 2% in the tensile zone, are three-layered specimens using polyvinyl alcohol (PVA) FRCC that are fabricated and tested by a four-point bending test. The maximum load of the FG-FRCC specimens exhibits almost twice that of homogeneous specimens, even when the average of the fiber volume fraction in the whole specimen is 1%. The result of the section analysis, in which the stress–strain models based on the bridging law (tensile stress–crack width relationship owned by the fibers) consider the fiber orientation effect, shows a good adaptability with the experiment result. View Full-Text
Keywords: fiber-reinforced cementitious composite; functionally graded material; bending test; fiber volume fraction; section analysis; bridging law fiber-reinforced cementitious composite; functionally graded material; bending test; fiber volume fraction; section analysis; bridging law
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MDPI and ACS Style

Kanakubo, T.; Koba, T.; Yamada, K. Flexural Characteristics of Functionally Graded Fiber-Reinforced Cementitious Composite with Polyvinyl Alcohol Fiber. J. Compos. Sci. 2021, 5, 94. https://doi.org/10.3390/jcs5040094

AMA Style

Kanakubo T, Koba T, Yamada K. Flexural Characteristics of Functionally Graded Fiber-Reinforced Cementitious Composite with Polyvinyl Alcohol Fiber. Journal of Composites Science. 2021; 5(4):94. https://doi.org/10.3390/jcs5040094

Chicago/Turabian Style

Kanakubo, Toshiyuki, Takumi Koba, and Kohei Yamada. 2021. "Flexural Characteristics of Functionally Graded Fiber-Reinforced Cementitious Composite with Polyvinyl Alcohol Fiber" Journal of Composites Science 5, no. 4: 94. https://doi.org/10.3390/jcs5040094

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