Improved Sectional Image Analysis Technique for Evaluating Fiber Orientations in Fiber-Reinforced Cement-Based Materials

Materials

Bang Yeon Lee⁴  Su-Tae Kang³  Hae-Bum Yun¹  Yun Yong Kim² 

[1] Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA;;Department of Civil Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, KoreaDepartment of Civil Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Korea;School of Architecture, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea;

关键词: fiber;    fiber-reinforced concrete;    image analysis;    orientation;   

DOI  :  10.3390/ma9010042

来源: mdpi

【 摘 要 】

The distribution of fiber orientation is an important factor in determining the mechanical properties of fiber-reinforced concrete. This study proposes a new image analysis technique for improving the evaluation accuracy of fiber orientation distribution in the sectional image of fiber-reinforced concrete. A series of tests on the accuracy of fiber detection and the estimation performance of fiber orientation was performed on artificial fiber images to assess the validity of the proposed technique. The validation test results showed that the proposed technique estimates the distribution of fiber orientation more accurately than the direct measurement of fiber orientation by image analysis.

【 授权许可】

CC BY   
© 2016 by the authors; licensee MDPI, Basel, Switzerland.