Improvement in Predicting the Post-Cracking Tensile Behavior of Ultra-High Performance Cementitious Composites Based on Fiber Orientation Distribution
In this paper, the post-cracking tensile behavior of Ultra-High Performance Cementitious Composites (UHPCC) was studied and an improved analytical model to predict the behavior depending on the fiber orientation distribution was proposed. Two different casting methods were adopted to estimate the in...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2016-10-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1944/9/10/829 |
| _version_ | 1811194243206610944 |
|---|---|
| author | Myoung Sung Choi Su-Tae Kang Bang Yeon Lee Kyeong-Taek Koh Gum-Sung Ryu |
| author_facet | Myoung Sung Choi Su-Tae Kang Bang Yeon Lee Kyeong-Taek Koh Gum-Sung Ryu |
| author_sort | Myoung Sung Choi |
| collection | DOAJ |
| description | In this paper, the post-cracking tensile behavior of Ultra-High Performance Cementitious Composites (UHPCC) was studied and an improved analytical model to predict the behavior depending on the fiber orientation distribution was proposed. Two different casting methods were adopted to estimate the influence of the casting method on the tensile behavior. The direct tensile test results showed that the post-cracking tensile behavior was considerably dependent on the casting method. The influence of the casting method was quantified by image analysis of the fiber distribution. The fiber orientation distribution obtained by image analysis may sometimes include considerable error according to the image resolution, which may cause inaccuracy when predicting the post-cracking tensile behavior based on the fiber orientation distribution. To overcome this dependency, the tensile bridging behavior by the fibers in UHPCC was simulated considering the obtained fiber orientation distribution as well as the number of fibers detected. The post-cracking behavior was then simulated by combining the bridging behavior and tension softening behavior of the matrix. The approach adopted in this study to simulate the post-cracking behavior of UHPCC showed good agreement with the experimental results. |
| first_indexed | 2024-04-12T00:23:39Z |
| format | Article |
| id | doaj.art-c55611edc9764efd89f7d43e9f7d7e2d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-12T00:23:39Z |
| publishDate | 2016-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-c55611edc9764efd89f7d43e9f7d7e2d2022-12-22T03:55:39ZengMDPI AGMaterials1996-19442016-10-0191082910.3390/ma9100829ma9100829Improvement in Predicting the Post-Cracking Tensile Behavior of Ultra-High Performance Cementitious Composites Based on Fiber Orientation DistributionMyoung Sung Choi0Su-Tae Kang1Bang Yeon Lee2Kyeong-Taek Koh3Gum-Sung Ryu4Department of Safety Engineering, Dongguk University-Gyeongju, 123 Dongdae-ro, Gyeongju, Gyeongbuk 38066, KoreaDepartment of Civil Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, KoreaSchool of Architecture, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, KoreaStructural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang, Gyeonggi 10223, KoreaStructural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang, Gyeonggi 10223, KoreaIn this paper, the post-cracking tensile behavior of Ultra-High Performance Cementitious Composites (UHPCC) was studied and an improved analytical model to predict the behavior depending on the fiber orientation distribution was proposed. Two different casting methods were adopted to estimate the influence of the casting method on the tensile behavior. The direct tensile test results showed that the post-cracking tensile behavior was considerably dependent on the casting method. The influence of the casting method was quantified by image analysis of the fiber distribution. The fiber orientation distribution obtained by image analysis may sometimes include considerable error according to the image resolution, which may cause inaccuracy when predicting the post-cracking tensile behavior based on the fiber orientation distribution. To overcome this dependency, the tensile bridging behavior by the fibers in UHPCC was simulated considering the obtained fiber orientation distribution as well as the number of fibers detected. The post-cracking behavior was then simulated by combining the bridging behavior and tension softening behavior of the matrix. The approach adopted in this study to simulate the post-cracking behavior of UHPCC showed good agreement with the experimental results.http://www.mdpi.com/1996-1944/9/10/829post-cracking behaviorfiber reinforcementUHPCCfiber orientationbridging |
| spellingShingle | Myoung Sung Choi Su-Tae Kang Bang Yeon Lee Kyeong-Taek Koh Gum-Sung Ryu Improvement in Predicting the Post-Cracking Tensile Behavior of Ultra-High Performance Cementitious Composites Based on Fiber Orientation Distribution Materials post-cracking behavior fiber reinforcement UHPCC fiber orientation bridging |
| title | Improvement in Predicting the Post-Cracking Tensile Behavior of Ultra-High Performance Cementitious Composites Based on Fiber Orientation Distribution |
| title_full | Improvement in Predicting the Post-Cracking Tensile Behavior of Ultra-High Performance Cementitious Composites Based on Fiber Orientation Distribution |
| title_fullStr | Improvement in Predicting the Post-Cracking Tensile Behavior of Ultra-High Performance Cementitious Composites Based on Fiber Orientation Distribution |
| title_full_unstemmed | Improvement in Predicting the Post-Cracking Tensile Behavior of Ultra-High Performance Cementitious Composites Based on Fiber Orientation Distribution |
| title_short | Improvement in Predicting the Post-Cracking Tensile Behavior of Ultra-High Performance Cementitious Composites Based on Fiber Orientation Distribution |
| title_sort | improvement in predicting the post cracking tensile behavior of ultra high performance cementitious composites based on fiber orientation distribution |
| topic | post-cracking behavior fiber reinforcement UHPCC fiber orientation bridging |
| url | http://www.mdpi.com/1996-1944/9/10/829 |
| work_keys_str_mv | AT myoungsungchoi improvementinpredictingthepostcrackingtensilebehaviorofultrahighperformancecementitiouscompositesbasedonfiberorientationdistribution AT sutaekang improvementinpredictingthepostcrackingtensilebehaviorofultrahighperformancecementitiouscompositesbasedonfiberorientationdistribution AT bangyeonlee improvementinpredictingthepostcrackingtensilebehaviorofultrahighperformancecementitiouscompositesbasedonfiberorientationdistribution AT kyeongtaekkoh improvementinpredictingthepostcrackingtensilebehaviorofultrahighperformancecementitiouscompositesbasedonfiberorientationdistribution AT gumsungryu improvementinpredictingthepostcrackingtensilebehaviorofultrahighperformancecementitiouscompositesbasedonfiberorientationdistribution |