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工程力学  2015 

基体裂纹-异型夹杂相互作用焦散线实验研究

DOI: 10.6052/j.issn.1000-4750.2014.03.0143, PP. 198-202

Keywords: 静态焦散线,异型夹杂,应力强度因子KI,焦散斑畸变,裂纹

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Abstract:

该文通过透射式静态焦散线方法利用三点弯曲梁断裂实验对异型夹杂与基体裂纹的相互作用进行研究。首先得到不同夹杂情况下I型裂纹尖端的焦散斑图,引入焦散斑纵横轴长之比β反映焦散斑在夹杂作用下的畸变特性;其次,提取相应的焦散斑特征尺寸,并得到I型裂纹的应力强度因子KI;最后,基于不同夹杂情况下裂尖焦散斑、裂尖应力强度因子与裂尖和夹杂之间距离的关系,揭示不同夹杂对裂纹尖端应力场奇异性影响规律。实验研究结果为含异型夹杂结构的强度设计和断裂性能评估提供实验依据。

References

[1]  卿龙邦, 李庆斌, 管俊峰, 王娟. 基于虚拟裂缝模型的混凝土断裂过程区研究[J]. 工程力学, 2012, 29(9): 112―116, 132.
[2]  Qing Longbang, Li Qingbin, Guan Junfeng, Wang Juan. Study of concrete fracture process zone based on fictitious crack model [J]. Engineering Mechanics, 2012, 29(9): 112―116, 132. (in Chinese)
[3]  任利, 谢和平, 谢凌志, 艾婷. 基于断裂力学的裂隙岩体强度分析初探[J]. 工程力学, 2012, 30(2): 156―162, 168.
[4]  Ren Li, Xie Heping, Xie Lingzhi, Ai Ting. Preliminary study on strength of cracked rock specimen based on fracture mechanics [J]. Engineering Mechanics, 2012, 30(2): 156―162, 168. (in Chinese)
[5]  聂建国, 王宇航. ABAQUS 中混凝土本构模型用于模拟结构静力行为的比较研究[J]. 工程力学, 2012, 30(4): 59―67.
[6]  Nie Jianguo, Wang Yuhang. Comparison study of constitutive model of concrete in ABAQUS for static analysis of structures [J]. Engineering Mechanics, 2012, 30(4): 59―67. (in Chinese)
[7]  Lee P Y, Sun Z C, Liao M, et al. The study of crack mechanism during arc brazing of cooling pipe to ITER magnet support system [J]. IEEE Transactions on Applied Superconductivity, 2014, 24(3): 1―4.
[8]  Jajam K C, Tippur H V. Role of inclusion stiffness and interfacial strength on dynamic matrix crack growth: An experimental study [J]. International Journal of Solids and Structures, 2012, 49(9): 1127―1146.
[9]  Yao X F, Xu W. Recent application of caustics on experimental dynamic fracture studies [J]. Fatigue & Fracture of Engineering Materials & Structures, 2011, 34(6): 448―459.
[10]  Yao X F, Xu W, Bai S L, Yeh H Y. Caustics analysis of the crack initiation and propagation of graded materials [J]. Composites Science and Technology, 2008, 68(3/4): 953―962.
[11]  Yao X F, Xu W, Arakawa K, Takahashi K, T Mada Dynamic optical visualization on the interaction between propagating crack and stationary crack [J]. Optics and Lasers in Engineering, 2005, 43(2): 195―207.
[12]  许蔚, 姚学锋, 金观昌. 功能梯度材料II型动态裂纹尖端的焦散线分析[J]. 工程力学, 2006, 23(9): 30―35.
[13]  Xu Wei, Yao Xuefeng, Jin Guanchang. Caustics analysis of mode II dynamic crack tip infunctionally gradient materlals [J]. Engineering Mechanics, 2006, 23(9): 30―35. (in Chinese)
[14]  姚学锋, 倪受庸, 方竞. 关于瞬态应力强度因子和裂纹扩展加速度之间的关系探讨[J]. 工程力学, 1996, 13(3): 33―39. Yao Xuefeng, Ni Shouyong, Fang Jing. An analysis of the relations between the stress intensity factor and crack acceleration [J]. Engineering Mechanics, 1996, 13(3): 33―39. (in Chinese)
[15]  许蔚, 徐曼琼, 姚学锋, 等. 正交复合材料I型裂纹动态响应焦散线实验研究[J]. 工程力学, 2006, 23(3): 173―177. Xu Wei, Xu Manqiong, Yao Xuefeng, et al. Experimental study of caustics of mode-I dynamic crack response in orthotropic composites [J]. Engineering Mechanics, 2006, 23(3): 173―177. (in Chinese)
[16]  杨仁树, 杨立云, 岳中文, 等. 爆炸载荷下缺陷介质裂纹扩展的动焦散试验[J]. 煤炭学报, 2009, 34(2): 187―192.
[17]  Yang Renshu, Yang Liyun, Yue Zhongwen, et al. Dynamic caustics experiment of crack propagation in material containing flaws under blasting load [J]. Journal Of China Coal Society, 2009, 34(2): 187―192. (in Chinese)
[18]  岳中文, 杨仁树, 郭东明, 等. 爆炸作用下空孔周围应力场变化的模型实验[J]. 煤炭学报, 2009, 34(5): 624―628.
[19]  Yue Zhongwen, Yang Renshu, Guo Dongming, et al. Model experimental of stress field around empty hole under blasting loading [J]. Journal of China Coal Society, 2009, 34(5): 624―628. (in Chinese)
[20]  Manogg P. Anwendungen der schattenoptik zur untersuchung des zerreissvor-gangs von platen [D]. Albert-Ludwigs-Universität Freiburg im Breisgau, 1964.
[21]  Theocaris P S. Local yielding around a crack tip in plexiglas [J]. Journal of Applied Mechanics. 1970, 37(2): 409―415.
[22]  Papadopoulos G A, Papanicolaou G C. Dynamic crack propagation in rubber-modified composite models [J]. Journal of Materials Science, 1988, 23(10): 3421―3434.
[23]  Kezhuang Gong, Zheng Li. Caustics method in dynamic fracture problem of orthotropic materials [J]. Optics and Lasers in Engineering, 2008, 46(8): 614―619.
[24]  中国航空研究院. 应力强度因子手册[M]. 北京: 科学出版社, 1981: 100.
[25]  China Aviation Academy. Handbook of stress intensity factors [M]. Beijing: Science Press, 1981: 100. (in Chinese)

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