[1]郑如杰、毕贤顺.裂纹尺寸对混凝土断裂韧度的影响[J].福建工程学院学报,2017,15(03):224-228.[doi:10.3969/j.issn.1672-4348.2017.03.005]
　Zheng Rujie,Bi Xianshun.Effect of crack size on the fracture toughness of concrete[J].Journal of FuJian University of Technology,2017,15(03):224-228.[doi:10.3969/j.issn.1672-4348.2017.03.005]
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裂纹尺寸对混凝土断裂韧度的影响()
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《福建工程学院学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第15卷
期数:
2017年03期
页码:
224-228
栏目:
出版日期:
2017-06-25

文章信息/Info

Title:
Effect of crack size on the fracture toughness of concrete
作者:
郑如杰、毕贤顺
福建工程学院土木学院
Author(s):
Zheng Rujie;  Bi Xianshun
College of Civil Engineering, Fujian University of Technology
关键词:
混凝土; 数值模拟; 三点弯曲试验; 裂纹; 断裂韧度
Keywords:
concrete;  numerical simulation;  three-point bending test;  crack;  fracture toughness
分类号:
TU37
DOI:
10.3969/j.issn.1672-4348.2017.03.005
文献标志码:
A
摘要:
利用断裂力学方法对含有裂纹混凝土试件的断裂韧度进行了研究。通过预制不同裂纹深度的混凝土试件，采用三点弯曲试验方法对含裂纹混凝土梁的断裂韧度进行实验，同时利用ABAQUS软件，采用最大主应力牵引损伤开裂准则与线性软化损伤模型进行数值模拟。结果表明，实验结果和数值模拟比较一致，最大误差不超过15%，当初始缝纹长度为40~120 mm时，起裂断裂韧度KiniIC变化幅度较小，失稳断裂韧度KunIC有明显的减小趋势。
Abstract:
The fracture toughness of concrete specimen with cracks was studied via fracture mechanic method. Through precasting concrete specimens of different crack depths, three-point bending test method was employed to study the fracture toughness of the concrete beam with cracks. Meanwhile, the maximum principal stress damage and fracture criterion and linear softening damage model in the ABAQUS software were adopted to conduct the experiment. The results show that the numerical simulation result is in agreement with the experimental result with the largest difference being less than 10%, that when the initial crack length is within 40mm and 120mm, the initial fracture toughness KiniIC has little change while the unstable fracture toughness KunIC is in an obvious decreasing trend.

参考文献/References:

[1] Kaplan M F. Crack propagation and the fracture of concret[J]. Journal of the American Concrete Institute,1961,4(3):497-519.
[2] Hilberborg A, Modeer M, Petersson P E. Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements[J]. Cement Concrete Research,1976,6(6):773-782.
[3] 徐世烺，王建敏.水压作用下大坝混凝土裂缝扩展与双K断裂参数[J].土木工程学报,2009(2):119-125.
[4] 荣华，董伟，吴智敏，等.大初始缝高比混凝土试件双K断裂参数的试验研究[J]. 工程力学,2012(1):162-167.
[5] 李晓东，董伟，吴智敏，等. 小尺寸混凝土试件双K断裂参数试验研究[J].工程力学,2010(2):166-171.
[6] 徐世烺.混凝土断裂力学[M].北京:科学出版社,2011.
[7] Guinea G V, Pastor J Y. Stress intensity factor,compliance and CMOD for a general threepoint beam[J]. International Journal of Fracture,1998,89:103-116.

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更新日期/Last Update: 2017-06-25