Experimental Study and Extended Finite Element Simulation of Fracture of Self-Compacting Rubberized Concrete
Self-compacting rubberized concrete (SCRC) is a high-performance concrete that can achieve compacting effect by self-gravity without vibration during pouring. Because of its excellent fluidity, homogeneity, and stability, the application of self-compacting concrete in engineering can improve work ef...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6622880 |
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| author | Xinquan Wang Hongguo Diao Yunliang Cui Changguang Qi Shangyu Han |
| author_facet | Xinquan Wang Hongguo Diao Yunliang Cui Changguang Qi Shangyu Han |
| author_sort | Xinquan Wang |
| collection | DOAJ |
| description | Self-compacting rubberized concrete (SCRC) is a high-performance concrete that can achieve compacting effect by self-gravity without vibration during pouring. Because of its excellent fluidity, homogeneity, and stability, the application of self-compacting concrete in engineering can improve work efficiency and reduce project cost. The effects of loading rate on the fracture behavior of self-compacting concrete were studied in this paper. Three-point bend (TPB) tests were carried out at five loading rates of 1, 0.1, 0.001, 0.0001, and 0.00001 mm/s. The dimensions of the specimens were 100 mm × 100 mm × 400 mm. A precast crack was set in the middle of the specimen with a notch-depth ratio of 0.4. The experimental results show that the peak load on the load-CMOD (crack mouth opening displacement) curve gradually increases with the increase of the loading rate. Although the fracture energy a presented greater dispersion under the loading rate of 1 mm/s, the overall changes were still rising with the increase of the loading rate. Besides studying the softening characteristics of the self-compacting concrete, the constitutive softening curve of the self-compacting concrete was obtained using the bilinear model. Finally, curved three-point bending beams were simulated by using the extended finite element method based on ABAQUS. The fracture process of the self-compacting concrete under different loading conditions was analyzed more intuitively. The simulation results were compared with the experimental results, and the same conclusions were obtained. |
| format | Article |
| id | doaj-art-91eb5e774cc94e7d8849a13184b76af0 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-91eb5e774cc94e7d8849a13184b76af02025-02-03T05:49:50ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66228806622880Experimental Study and Extended Finite Element Simulation of Fracture of Self-Compacting Rubberized ConcreteXinquan Wang0Hongguo Diao1Yunliang Cui2Changguang Qi3Shangyu Han4Zhejiang University City College, Hangzhou 310015, ChinaZhejiang University City College, Hangzhou 310015, ChinaZhejiang University City College, Hangzhou 310015, ChinaCollege of Architecture, Civil Engineering and Environment, Ningbo University, Ningbo 315211, ChinaCollege of Civil and Architectural Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaSelf-compacting rubberized concrete (SCRC) is a high-performance concrete that can achieve compacting effect by self-gravity without vibration during pouring. Because of its excellent fluidity, homogeneity, and stability, the application of self-compacting concrete in engineering can improve work efficiency and reduce project cost. The effects of loading rate on the fracture behavior of self-compacting concrete were studied in this paper. Three-point bend (TPB) tests were carried out at five loading rates of 1, 0.1, 0.001, 0.0001, and 0.00001 mm/s. The dimensions of the specimens were 100 mm × 100 mm × 400 mm. A precast crack was set in the middle of the specimen with a notch-depth ratio of 0.4. The experimental results show that the peak load on the load-CMOD (crack mouth opening displacement) curve gradually increases with the increase of the loading rate. Although the fracture energy a presented greater dispersion under the loading rate of 1 mm/s, the overall changes were still rising with the increase of the loading rate. Besides studying the softening characteristics of the self-compacting concrete, the constitutive softening curve of the self-compacting concrete was obtained using the bilinear model. Finally, curved three-point bending beams were simulated by using the extended finite element method based on ABAQUS. The fracture process of the self-compacting concrete under different loading conditions was analyzed more intuitively. The simulation results were compared with the experimental results, and the same conclusions were obtained.http://dx.doi.org/10.1155/2021/6622880 |
| spellingShingle | Xinquan Wang Hongguo Diao Yunliang Cui Changguang Qi Shangyu Han Experimental Study and Extended Finite Element Simulation of Fracture of Self-Compacting Rubberized Concrete Advances in Civil Engineering |
| title | Experimental Study and Extended Finite Element Simulation of Fracture of Self-Compacting Rubberized Concrete |
| title_full | Experimental Study and Extended Finite Element Simulation of Fracture of Self-Compacting Rubberized Concrete |
| title_fullStr | Experimental Study and Extended Finite Element Simulation of Fracture of Self-Compacting Rubberized Concrete |
| title_full_unstemmed | Experimental Study and Extended Finite Element Simulation of Fracture of Self-Compacting Rubberized Concrete |
| title_short | Experimental Study and Extended Finite Element Simulation of Fracture of Self-Compacting Rubberized Concrete |
| title_sort | experimental study and extended finite element simulation of fracture of self compacting rubberized concrete |
| url | http://dx.doi.org/10.1155/2021/6622880 |
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