SHPB劈裂试验下橡胶水泥砂浆的动态力学、能量特性及破坏机理试验研究

doi:10.11896/cldb.20030105

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Abstract In this paper, based on the Brazilian splitting principle under static load, the SHPB splitting test of rubber cement mortar was carried out, and the dynamic mechanics, energy characteristics, and failure mechanism of rubber cement mortar under the SHPB splitting test were studied. Based on damage mechanics, the effects of rubber content, curing humidity, and impact load on dynamic splitting damage of cement mortar were analyzed from the point of view of strength and energy, and six damage paths under three damage factors were discussed.Combined with the fai-lure modes of disc specimens, a simplified plane ideal force model of impact splitting was established. Two different dynamic splitting fracture forms on fracture form-Ⅰ and fracture form-Ⅱ were analyzed and the failure mechanism of disk specimen under fracture form-Ⅱ was discussed preliminarily. The above research results showed that the addition of rubber and the decrease of curing humidity have a great negative effect on the dynamic splitting tensile strength of cement mortar. Normal cement mortar disc specimens and rubber cement mortar disc specimens have the same evolution trends of stress rate and strain rate. The addition of rubber particles and the decrease of curing humidity hinders the transfer of energy in cement mortar disc specimens to some extent. The dynamic splitting damage of cement mortar disc samples caused by different single damage factors and different compound damage factors is different. Under higher impact pressure, the disk specimen is likely to be destroyed by the formation of “triangular crushing zone”, “splitting tensile zone” and “bending fracture zone”. Finally, the effect of ITZ on the strength and impact resistance of rubber cement mortar under SHPB splitting was analyzed from a mesoscopic point of view.

Key words： rubber cement mortar split Hopkinson pressure bar (SHPB) brazilian splitting dynamic mechanics energy characteristics fai-lure mechanism

Published: 04 June 2021

CLC number:

TB332

Fund:Key Research and Development Program Project of Anhui Province (201904a07020081), Nature Science Foundation of Anhui (1908085QE213).

About author:: Rongzhou Yang, doctoral candidate, Anhui University of Science and Technology, is mainly engaged in the study of mechanical properties, energy and explosion shock of materials.
Ying Xu, professor, doctor, doctoral supervisor, has been engaged in teaching and scientific research in civil engineering materials, geotechnical engineering blasting, mine construction engineering, and other directions for a long time. He has successively presided over 20 key projects of the National Natural Science Foundation, surface projects, and provincial and ministerial projects. More than 150 papers have been published, of which 40 have been included by SCI and EI, and 5 academic monographs and teaching materials have been published, such as “Theory and Application of Blasting in Underground Engineering” and “Theory and Practice of Explosive Grouting in the Weak Zone”. He has won
1 first prize, 2 second prize, and 10 third prize at the provincial and ministerial level. He also has won the honorary titles of outstanding talents of the Ministry of Education in the new century, blasting experts with outstanding contributions in the whole country, academic and technological leaders of Anhui Province, and Anhui Outstanding Youth Scientific and Technological Innovation Award. The academic part-time jobs are the vice president of China Blasting Industry Association, the vice-chairman of Engineering Blasting Committee of China Mechanical Society, the member of the Blasting Equipment and Technology Expert Committee of China Coal expert Committee, and the vice-chairman of China Engineering Blasting Expert Committee.

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Cite this article:

YANG Rongzhou,XU Ying,CHEN Peiyuan, et al. Experimental Study on Dynamic Mechanics, Energy Characteristics, and Failure Mechanism of Rubber Cement Mortar Under SHPB Splitting Test[J]. Materials Reports, 2021, 35(10): 10062-10072.

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http://www.mater-rep.com/EN/10.11896/cldb.20030105 OR http://www.mater-rep.com/EN/Y2021/V35/I10/10062

1 Valente M, Sibai A.Journal of Applied Biomaterials & Functional Mate-rials, 2019, 17(1), DOI: 10.1177/2280800019835486.
2 Abdelmonem A, El-Feky M S, Nasr E S A R, et al.Construction and Building Materials, DOI: 10.1016/j.conbuildmat.2019.08.041.
3 Xu J, Yao Z Y, Yang G, et al.Construction and Building Materials, DOI: 10.1016/j.conbuildmat.2019.117282.
4 Strukar K, Šipoš T K, Milićević I, et al.Engineering Structures, 2019, 188, 452.
5 Liu B D, Feng M Y, Lin B H, et al. China Railway Science, 2019, 40(6), 9 (in Chinese).
刘保东, 冯明扬, 林柏欢, 等.中国铁道科学, 2019, 40(6), 9.
6 Segre N, Joekes I.Cement and Concrete Research, 2000, 30 (9), 1421.
7 Zhao Q H, Wang F, Zhu H. Acta Materiae Compositae Sinica, 2018, 35(8), 2222 (in Chinese).
赵秋红, 王菲, 朱涵.复合材料学报, 2018, 35(8), 2222.
8 Feng W H, Liu F, Yang F, et al. Construction and Building Materials, 2019, 224, 408.
9 Feng W H, Liu F, Yang F, et al. Construction and Building Materials, 2018, 165, 675.
10 Hao Y H, Fan L, Han Y, et al.Journal of Vibration and Shock, 2019, 38(17), 73 (in Chinese).
郝贠洪, 樊磊, 韩燕, 等. 振动与冲击, 2019, 38(17), 73.
11 Di S T, Jia C, Qiao W G, et al. Journal of Jilin University (Engineering and Technology Edition), 2019, 49(6), 1900 (in Chinese).
狄胜同, 贾超, 乔卫国, 等.吉林大学学报(工学版), 2019, 49(6), 1900.
12 Liu B D, Yang S Z, Li W L, et al. Construction and Building Materials, DOI: 10.1016/j.conbuildmat.2019.117286.
13 Xue G, Hou S, Niu J G. Building Structure, 2019, 49(12), 98 (in Chinese).
薛刚, 侯帅, 牛建刚. 建筑结构, 2019, 49(12), 98.
14 Yan Y D, Liu R G, Lu C H, et al. Journal of Harbin Institute of Techno-logy, 2016, 48(12), 148 (in Chinese).
延永东, 刘荣桂, 陆春华, 等. 哈尔滨工业大学学报, 2016, 48(12), 148.
15 Yang R Z, Xu Y, Chen P Y, et al.Material Reports B:Research Papers, 2020, 34(2), 4049 (in Chinese).
杨荣周, 徐颖, 陈佩圆, 等.材料导报:研究篇, 2020, 34(2), 4049.
16 Yang R Z, Xu Y, Chen P Y.Material Reports B:Research Papers, 2020,34(7),14070 (in Chinese).
杨荣周, 徐颖, 陈佩圆.材料导报:研究篇, 2020,34(7),14070.
17 Gong F Q, Li X B, Zhao J.Chinese Journal of Rock Mechanics and Engineering, 2010, 29(5), 881 (in Chinese).
宫凤强, 李夕兵, Zhao J.岩石力学与工程学报, 2010, 29(5), 881.
18 Xu Y, Shao B B, Xu W W, et al.Explosion and Shock Waves, 2017, 37(2), 315 (in Chinese).
徐颖, 邵彬彬, 许维伟, 等.爆炸与冲击, 2017, 37(2), 315.
19 Li M, Qiao L, Li Q W.Chinese Journal of Geotechnical Engineering, 2017, 39(7), 1336 (in Chinese).
李淼, 乔兰, 李庆文.岩土工程学报, 2017, 39(7), 1336.
20 Ping Q, Ma Q Y, Yuan P, et al.Journal of Mining and Safety Enginee-ring, 2013, 30(3), 401 (in Chinese).
平琦, 马芹永, 袁璞,等.采矿与安全工程学报, 2013, 30(3), 401.
21 Su X B, Ji H G, Pei F, et al.Journal of Harbin Institute of Technology, 2018, 50(8), 161 (in Chinese).
苏晓波, 纪洪广, 裴峰, 等.哈尔滨工业大学学报, 2018, 50(8), 161.
22 Xia K W, Yao W. Journal of Rock Mechanics and Geotechnical Enginee-ring, 2015, 7(1), 27.
23 Xue Y Z, Liu T, Tang L Z, et al.Journal of Wuhan University of Techno-logy, 2013, 35(3), 97(in Chinese).
薛奕忠, 刘涛, 唐礼忠, 等.武汉理工大学学报, 2013, 35(3), 97.
24 Xu J P, Dong X L, Fu Y Q, et al.Chinese Journal of Theoretical and Applied Mechanics, 2020, 52(3), 864(in Chinese).
徐纪鹏, 董新龙, 付应乾, 等.力学学报, 2020, 52(3), 864.
25 Yang R S, Li W Y, Li Y L, et al.Journal of China Coal Society, 2020, 45(9), 3107(in Chinese).
杨仁树, 李炜煜, 李永亮, 等. 煤炭学报, 2020, 45(9), 3107.
26 Yang R Z, Xu Y, Chen P Y, et al.Construction and Building Materials, DOI: 10.1016/j.conbuildmat.2020.120071.
27 Li Y, Zhang X, Wang R J, et al. Construction and Building Materials, DOI: 10.1016/j.conbuildmat.2019.116691.