增幅循环荷载下CFRP约束型橡胶砂浆的疲劳特征

doi:10.11896/cldb.21040223

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Abstract To improve the bearing capacity and fatigue resistance of rubber cement-based materials, cyclic loading-unloading tests of normal rubber cement mortar (N-RCM) and carbon fiber reinforced polymers (CFRP) confined rubber cement mortar (C-RCM) were carried out, and the fatigue damage evolution characteristics of the two specimens were compared and analyzed from the aspects of the load-deformation curve, fai-lure state, deformation, modulus and energy. The results show that compared with N-RCM, C-RCM has ideal toughness and ductility, and its peak load and peak deformation increase by 1.38 times and 2.47 times, respectively. N-RCM shows conventional shear failure, while C-RCM shows instantaneous expansion explosion failure after a large amount of energy storage. Compared with the maximum moduli of loading and unloading of N-RCM, the two of C-RCM increase by 42.32% and 26.19%, respectively. The elastic energy and cumulative damage energy of C-RCM increase by 4.97 times and 45.57 times, respectively, compared with those of N-RCM, indicating that CFRP significantly improves the energy storage and energy dissipation capacity of rubber mortar. The fatigue damage growth rate of N-RCM is significantly higher than that of C-RCM, indicating that CFRP plays a key role in promoting the rubber mortar material to give full play to its structural resistance by increasing the fatigue yield process, and effectively delays the development of fatigue damage. Finally, the difference of fracture mechanism between N-RCM and C-RCM was analyzed and discussed.

Key words： carbon fiber reinforced polymers (CFRP) rubber mortar cyclic loading-unloading fatigue damage

Published: 10 May 2022 Online: 2022-05-09

CLC number:

TB332

Fund:National Natural Science Foundation of China (52074009) and the Key Research and Development Program Project of Anhui Province (201904a07020081).

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	Articles by authors
	YANG Rongzhou
	CHEN Peiyuan
	GE Jinjin
	XU Ying
	WANG Jia
	LIU Jiaxing
	XIE Haotian

Cite this article:

YANG Rongzhou,CHEN Peiyuan,GE Jinjin, et al. Fatigue Characteristics of CFRP Sheet Confined Rubber Cement Mortar Under Increasing Amplitude Cyclic Load[J]. Materials Reports, 2022, 36(9): 21040223-10.

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http://www.mater-rep.com/EN/10.11896/cldb.21040223 OR http://www.mater-rep.com/EN/Y2022/V36/I9/21040223

1 Yazdani S, Asadollahi S, Shoaei P, et al. Engineering Failure Analysis, 2021, 122, 105219.
2 Sun F J, Pang S H, Zhang Z W, et al. Composite Structures, 2020, 236, 111927.
3 Khan I, Shahzada K, Bibi T, et al. Structures, 2021, 30, 41.
4 Youssfa O, ElGawady M A, Mills J E. Structures, 2015, 3, 13.
5 Pacheco-Torres R, Cerro-Prada E, Escolano F, et al. Construction and Building Materials, 2018, 176, 539.
6 Yang F, Feng W, Liu F, et al. Construction and Building Materials, 2019, 198, 423.
7 Feng W, Chen B, Yang F, et al. Journal of Building Engineering, 2021, 33, 101610.
8 Zhang Q, Wang L. Construction and Building Materials, 2021, 269, 121287.
9 Li P, Wu Y F, Gravina R. Construction and Building Materials, 2016, 123, 814.
10 He Q F, Yue L Y, Mao J W. Journal of Vibration and Shock, 2021, 40(4), 171(in Chinese).
何庆锋, 岳泪阳, 毛佳伟. 振动与冲击, 2021, 40(4), 171.
11 Wang Z, Wang D, Smith S T, et al. Engineering Structures, 2012, 40, 64.
12 Liu M Y, Lu J, Ming P, et al. Acta Materiae Compositae Sinica, 2021(5),1594(in Chinese).
刘妙燕, 陆俊, 明攀, 等. 复合材料学报, 2021(5),1594.
13 Xie J, Zheng Y, Guo Y, et al. Composite Structures, 2019, 228, 111371.
14 Pacheco-Torres R, Cerro-Prada E, Escolano F, et al. Construction and Building Materials, 2018, 176, 539.
15 Bompa D V, Elghazouli A Y. Construction and Building Materials, 2019, 209, 126.
16 Xu Y, Yang R. Journal of Materials in Civil Engineering, 2020, 32(10), 04020309.
17 Yang R Z, Xu Y, Zheng Q Q, et al. Journal of Building Materials, 2021, 24(5), 961(in Chinese).
杨荣周, 徐颖, 郑强强, 等. 建筑材料学报, 2021, 24(5), 961.
18 Yang R, Xu Y, Chen P, et al. Journal of Central South University, 2021, 28(7), 2158.
19 Li T, Pei X, Wang D, et al. Engineering Fracture Mechanics, 2019, 206, 330.
20 Gambarelli S, Nisticò N, Ožbolt J. Composites Part B: Engineering, 2014, 67, 303.
21 Fan J, Jiang D, Chen J, et al. Construction and Building Materials, 2018, 166, 974.
22 Jin L, Chen H, Wang Z, et al. Composite Structures, 2020, 254, 112843.
23 Yu Z, Tang R, Li F,et al. Construction and Building Materials, 2021, 288, 123105.