EXPERIMENTAL DETERMINATION OF FRACTURE TOUGHNESS OF THREE-POINT BENDING UHPCC BEAM AND INFLUENCE LAW

Wang Haichao; Wang Zhijun; Gao Shuling; Sun Fangning; Zhang Lingling; Qin Jingping

doi:10.13204/j.gyjz201309020

Volume 43 Issue 9

Dec. 2014

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Wang Haichao, Wang Zhijun, Gao Shuling, Sun Fangning, Zhang Lingling, Qin Jingping. EXPERIMENTAL DETERMINATION OF FRACTURE TOUGHNESS OF THREE-POINT BENDING UHPCC BEAM AND INFLUENCE LAW[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(9): 106-110. doi: 10.13204/j.gyjz201309020

Citation:

Wang Haichao, Wang Zhijun, Gao Shuling, Sun Fangning, Zhang Lingling, Qin Jingping. EXPERIMENTAL DETERMINATION OF FRACTURE TOUGHNESS OF THREE-POINT BENDING UHPCC BEAM AND INFLUENCE LAW[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(9): 106-110. doi: 10.13204/j.gyjz201309020

Citation:

Wang Haichao, Wang Zhijun, Gao Shuling, Sun Fangning, Zhang Lingling, Qin Jingping. EXPERIMENTAL DETERMINATION OF FRACTURE TOUGHNESS OF THREE-POINT BENDING UHPCC BEAM AND INFLUENCE LAW[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(9): 106-110. doi: 10.13204/j.gyjz201309020

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EXPERIMENTAL DETERMINATION OF FRACTURE TOUGHNESS OF THREE-POINT BENDING UHPCC BEAM AND INFLUENCE LAW

doi: 10.13204/j.gyjz201309020

1.
1. College of Civil Engineering and Architecture,Shandong University of Science and Technology,Qingdao 266590,China;
2.
2． College of Civil Engineering,Hebei University of Technology,Tianjin 300401,China;
3.
3． Qingdao Institute of Technology,Qingdao 266300,China

Received Date: 2012-11-08
Publish Date: 2013-09-20

Abstract

Abstract

Through the tests of 14 sets of three-point bending UHPCC beam specimens with the different compressivestrength，sizes and initial crack-depth ratios，their double-K fracture parameters are studied． The initial fracturetoughness KiniIC and unstable fracture toughness KunIC are calculated from the initial load Pini，the maximum load Pmax andcritical crack mouth open displacement CMODC ． The results indicate that the KiniIC and KiniIC of UHPCC and cementbasedspecimens increase with the increasing of compressive strength． The KiniIC and KunIC of UHPCC significantlyincrease with the decrease of initial crack-depth ratio，but the KiniIC (KunIC ) of cement-based specimens increase a little．The KiniIC and KunIC of UHPCC significantly increase with the increase of specimen size，but that of cement-basedspecimens present some discreteness．
- UHPCC,
- double-K fracture criterion,
- initial fracture toughness,
- unstable fracture toughness,
- three-point bending beam

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References(11)

References

李忠献,刘永光.I-II 复合型裂缝断裂角的分层剪滞模型与分析[J].大连理工大学学报,2008(6):283-290.

[2] 徐世烺,赵国藩.光弹贴片法研究混凝土裂缝扩展过程[J].水力发电学报,1991,10(3): 8-19.

[3] 吴智敏,董伟,许青.混凝土I-II 复合型裂缝扩展准则及扩展全过程的数值模拟[J].水力学报,2009(2):180-187.

[4] Li V C.Engineered Cementitious Composites Tailored CompositesThrough Micromechanical Modeling[C]// Banthia N,Bentur A,Mufti A.Fiber Reinforced Concrete: Present and the Future.Montreal: Canadian Society for Civil Engineering,1998:64-97.

[5] 徐世烺,王楠,李庆华.超高韧性水泥基复合材料增强普通混凝土复合梁弯曲性能试验研究[J].土木工程学报,2010,43(5):17-22.

[6] Xu Shilang,Reinhardt H W.Determination of Double-Kcriterionfor Crack Propagation in Quasi-brittle Materials, Part Ⅰ:Experimental Investigation of Crack Propagation[J].InternationalJournal of Fracture,1999,98(2):111-149.

[7] Xu Shilang,Reinhardt H W.Determination of Double-Kcriterion forCrack Propagation in Quasi-Brittle Materials,partⅡ: AnalyticalEvaluating and Practical Measuring Methods for Three-PointBending Notched Beams[J].International Journal of Fracture,1999,98(2):151-177.

[8] 徐世烺,赵国藩.混凝土结构裂缝扩展的双K 断裂准则[J].土木工程学报,1992,25(2):32-38.

[9] Xu Shilang,Reinhardt H W.A Simplified Method for DeterminingDouble-K Fracture Parameters for Three-Point Bending Tests[J].International Journal of Fracture,2000,104:181-209.

[10] 徐世烺,朱榆,张秀芳.水泥净浆和水泥砂浆材料的Ⅰ型断裂韧度测定[J].水利学报,2008,39(1):41-46.

[11] 徐世烺,赵国藩.混凝土结构裂缝扩展的双K 断裂准则[J].土木工程学报,1992,25(2):32-36.

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