| COMPUTATIONAL SIMULATION |
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Effects of Fiber Distribution and Orientation Distribution Based on Image
Processing on Bending Properties of PVA Fiber Reinforced Cementitious Composites |
| WU Wenhong1, NIU Hengmao2,4, ZHAO Yanru3, XING Yongming4
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1 College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051;
2 College of Construction
Engineering, Inner Mongolia Technical College of Construction, Hohhot 010070;
3 College of Civil Engineering,
Inner Mongolia University of Technology, Hohhot 010051;
4 College of Science, Inner Mongolia
University of Technology, Hohhot 010051 |
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Abstract Fiber distribution and orientation distribution play a key role in bending property of PVA fiber reinforced cementitious composites. PVA fibers distribution and orientation distribution based on image processing was quantitatively measured by fluorescence microscope images methods. Meanwhile, the effects of different formation of cementious matrix due to component adjusting on fibers distribution were discussed. Moreover, effects of fiber distribution and orientation distribution on bending properties of PVA fiber reinforced cementitious composites were comprehensively studied. The results of the distribution of PVA fibers showed that uniformity of the formation of cementious matrix was beneficial to good fibers distribution. At the same time, higher fiber distribution coefficient would lead to higher strength and ductility of the specimens with the same component and processing. The results of the orientation distribution of fibers showed that high distribution probability of orientation angle approaching to 90° between fiber length direction and the polishing surface direction contributed to high ductility of the specimens.
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Published: 25 March 2017
Online: 2018-05-02
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2017, Vol. 31 
