Effect of Low-Stress Fatigue on the Off-Crack-Plane Fracture Energy in Engineered Cementitious Composites
This paper presented an experimental study on the flexural properties of engineered cementitious composites (ECCs). The bending fatigue damage, residual deformation, and damage characteristics were investigated after a certain number of low stress levels in fatigue load. The composite fracture energ...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/4720564 |
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| author | Longlong Liu Shuling Gao Jianda Xin Dahai Huang |
| author_facet | Longlong Liu Shuling Gao Jianda Xin Dahai Huang |
| author_sort | Longlong Liu |
| collection | DOAJ |
| description | This paper presented an experimental study on the flexural properties of engineered cementitious composites (ECCs). The bending fatigue damage, residual deformation, and damage characteristics were investigated after a certain number of low stress levels in fatigue load. The composite fracture energy and fiber-bridging fracture energy were calculated by the J integral. It is observed that the number of cracks increased with the increment of stress levels, and most of the cracks were formed during the earlier stage of the dynamic test. The deformation capability decreased with the increment of stress levels while the reduction of the ultimate load was minor after the dynamic load. Furthermore, the strain-hardening phenomenon of the specimen enhanced initially and then weakened with the increment of stress levels. The residual equivalent yield strength became smaller with the increase of stress levels. Meanwhile, the trend was mild at low stress levels and then became steep at high stress levels. |
| format | Article |
| id | doaj-art-c228a8876b2c415ebe04764003df4af5 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-c228a8876b2c415ebe04764003df4af52025-02-03T05:59:23ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/47205644720564Effect of Low-Stress Fatigue on the Off-Crack-Plane Fracture Energy in Engineered Cementitious CompositesLonglong Liu0Shuling Gao1Jianda Xin2Dahai Huang3School of Transportation Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, ChinaDepartment of Structures and Materials, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaSchool of Transportation Science and Engineering, Beihang University, Beijing 100191, ChinaThis paper presented an experimental study on the flexural properties of engineered cementitious composites (ECCs). The bending fatigue damage, residual deformation, and damage characteristics were investigated after a certain number of low stress levels in fatigue load. The composite fracture energy and fiber-bridging fracture energy were calculated by the J integral. It is observed that the number of cracks increased with the increment of stress levels, and most of the cracks were formed during the earlier stage of the dynamic test. The deformation capability decreased with the increment of stress levels while the reduction of the ultimate load was minor after the dynamic load. Furthermore, the strain-hardening phenomenon of the specimen enhanced initially and then weakened with the increment of stress levels. The residual equivalent yield strength became smaller with the increase of stress levels. Meanwhile, the trend was mild at low stress levels and then became steep at high stress levels.http://dx.doi.org/10.1155/2018/4720564 |
| spellingShingle | Longlong Liu Shuling Gao Jianda Xin Dahai Huang Effect of Low-Stress Fatigue on the Off-Crack-Plane Fracture Energy in Engineered Cementitious Composites Advances in Civil Engineering |
| title | Effect of Low-Stress Fatigue on the Off-Crack-Plane Fracture Energy in Engineered Cementitious Composites |
| title_full | Effect of Low-Stress Fatigue on the Off-Crack-Plane Fracture Energy in Engineered Cementitious Composites |
| title_fullStr | Effect of Low-Stress Fatigue on the Off-Crack-Plane Fracture Energy in Engineered Cementitious Composites |
| title_full_unstemmed | Effect of Low-Stress Fatigue on the Off-Crack-Plane Fracture Energy in Engineered Cementitious Composites |
| title_short | Effect of Low-Stress Fatigue on the Off-Crack-Plane Fracture Energy in Engineered Cementitious Composites |
| title_sort | effect of low stress fatigue on the off crack plane fracture energy in engineered cementitious composites |
| url | http://dx.doi.org/10.1155/2018/4720564 |
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