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《材料导报》期刊社  2017, Vol. 31 Issue (6): 140-146    https://doi.org/10.11896/j.issn.1005-023X.2017.06.028
  计算模拟 |
基于图像处理的纤维分布与取向分布对水泥基材料弯曲性能的影响
武文红1, 牛恒茂2, 4, 赵燕茹3, 邢永明4
1 内蒙古工业大学信息工程学院, 呼和浩特 010051;
2 内蒙古建筑职业技术学院建筑工程学院, 呼和浩特 010070;

3 内蒙古工业大学土木工程学院, 呼和浩特 010051;
4 内蒙古工业大学理学院, 呼和浩特 010051
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
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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摘要 聚乙烯醇(PVA)纤维增强水泥基材料的弯曲性能与纤维在水泥基体内的分布和取向分布相关。采用抛光断面后涂荧光粉的显微成像法,基于图像处理程序对PVA纤维在水泥基材料中的分布和取向分布进行量化测定,对不同基体结构特征影响纤维分布的机理进行了讨论。结合弯曲试验结果,研究了纤维分布和取向分布对材料弯曲性能的影响。纤维分布测定结果表明,均匀的基体结构特征利于纤维的分布,同时对于材料组分和加工制作过程完全相同的试件,纤维分布系数越大,试件的弯曲强度与韧性越大;纤维取向分布测定结果表明,乱向分布的纤维当其长度方向与抛光断面方向的角度接近90°分布概率越大,试件的弯曲韧性也越大。
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武文红
牛恒茂
赵燕茹
邢永明
关键词:  PVA纤维水泥基复合材料  荧光显微成像法  纤维分布  纤维取向分布  弯曲性能    
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.
Key words:  polyvinyl alcohol (PVA) fiber reinforced cementitious composites    fluorescence microscope    fiber distribution    fiber orientation distribution    bending property
               出版日期:  2017-03-25      发布日期:  2018-05-02
ZTFLH:  TU528.58  
基金资助: 国家自然科学基金(11362013);内蒙古自治区高等学校科学研究项目(NJZY330);内蒙古工业大学科学研究项目(X201423)
通讯作者:  赵燕茹:女,1971年生,博士,博士研究生导师,教授,主要从事纤维增强水泥基材料的研究,E-mail:zhaoyanru710523@126.cn   
作者简介:  武文红:女,1980年生,硕士,讲师,主要从事图形图像处理的应用研究,E-mail:wwh801225@163.com
引用本文:    
武文红, 牛恒茂, 赵燕茹, 邢永明. 基于图像处理的纤维分布与取向分布对水泥基材料弯曲性能的影响[J]. 《材料导报》期刊社, 2017, 31(6): 140-146.
WU Wenhong, NIU Hengmao, ZHAO Yanru, XING Yongming. Effects of Fiber Distribution and Orientation Distribution Based on Image
Processing on Bending Properties of PVA Fiber Reinforced Cementitious Composites. Materials Reports, 2017, 31(6): 140-146.
链接本文:  
http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2017.06.028  或          http://www.mater-rep.com/CN/Y2017/V31/I6/140
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