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Structural Engineering and Mechanics Volume 30, Number 2, September30 2008 , pages 147-164 DOI: https://doi.org/10.12989/sem.2008.30.2.147 |
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Numerical modeling for cyclic crack bridging behavior of fiber reinforced cementitious composites |
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Kyung-Joon Shin, Kwang-Myong Lee and Sung-Pil Chang
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| Abstract | ||
| Recently, many researches have been done to examine the behavior of fiber reinforced concrete (FRC) subjected to the static loading. However, a few studies have been devoted to cyclic behaviors of FRC. A main objective of this paper is to investigate the cyclic behavior of FRC through theoretical method. A new cyclic bridging model was proposed for the analysis of fiber reinforced cementitious composites under cyclic loading. In the model, non-uniform degradation of interfacial bonding under cyclic tension was considered. Fatigue test results for FRC were numerically simulated using proposed models and the proposed model is achieving better agreement than the previous model. Consequently, the model can establish a basis for analyzing cyclic behavior of fiber reinforced composites. | ||
| Key Words | ||
| cyclic fiber bridging relation; cyclic constitutive relation; fiber reinforced cementitious composites; numerical modeling. | ||
| Address | ||
| Kyung-Joon Shin: Dept. of Civil Engineering Seoul National University, Shillim-dong, Gwanak-gu, Seoul 151-744, Korea Kwang-Myong Lee: Dept. of Civil and Environmental Engineering SungKyunKwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon 440-746, Korea Sung-Pil Chang: Dept. of Civil Engineering Seoul National University, Shillim-dong, Gwanak-gu, Seoul 151-744, Korea | ||