Interaction between a pre-existing crack defect with different angles and a running crack

Yue Zhongwen; Song Yao; Wang Xu; Li Mingyang; Li Minglin

doi:10.11883/1001-1455(2017)01-0162-07

Volume 37 Issue 1

Jan. 2017

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Yue Zhongwen, Song Yao, Wang Xu, Li Mingyang, Li Minglin. Interaction between a pre-existing crack defect with different angles and a running crack[J]. Explosion And Shock Waves, 2017, 37(1): 162-168. doi: 10.11883/1001-1455(2017)01-0162-07

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Yue Zhongwen, Song Yao, Wang Xu, Li Mingyang, Li Minglin. Interaction between a pre-existing crack defect with different angles and a running crack[J]. Explosion And Shock Waves, 2017, 37(1): 162-168. doi: 10.11883/1001-1455(2017)01-0162-07

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Interaction between a pre-existing crack defect with different angles and a running crack

doi: 10.11883/1001-1455(2017)01-0162-07

School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083, China

Received Date: 2015-01-21
Rev Recd Date: 2016-07-18
Publish Date: 2017-01-25

Abstract

Abstract

Using the digital-laser dynamic caustic system, the impact tests of the three-point bending beam were performed to investigate the interaction mechanism between a pre-existing crack defect with different angles and a running crack. The experimental results show that the secondary cracks were initiated at the tips of the middle pre-existing cracks under impact loading; the secondary cracks at the tip of the pre-existing cracks would not initiate until they have accumulated more energy in 0-10 μs; both the peak value of the dynamic stress intensity factor of the main cracks and the secondary cracks would rise with the increase of the pre-existing cracks angle in the central part of the specimen.
- solid mechanics,
- dynamic stress intensity factor,
- pre-existing crack defect,
- dynamic caustics,
- impact loading,
- three-point bending beam

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References(16)

References

[1]	岳中文, 王煦, 许鹏, 等.含圆孔缺陷三点弯曲梁动态焦散实验[J].实验力学, 2015, 30(3):339-348. http://d.old.wanfangdata.com.cn/Periodical/sylx201503011 Yue Zhongwen, Wang Xu, Xu Peng, et al. Dynamic caustics experiment of three-point bending beam with circular hole defect[J]. Journal of experimental mechanics, 2015, 30(3):339-348. http://d.old.wanfangdata.com.cn/Periodical/sylx201503011
[2]	姚学锋, 熊春阳, 方竞.含偏置裂纹三点弯曲梁的动态断裂行为研究[J].力学学报, 1996, 28(6):661-669. doi: 10.3321/j.issn:0459-1879.1996.06.003 Yao Xuefeng, Xiong Chunyang, Fang Jing. Study of dynamic fracture behaviour on three-point-bend beam with off-center edge-crack[J]. Acta Mechanica Sinica, 1996, 28(6):661-669. doi: 10.3321/j.issn:0459-1879.1996.06.003
[3]	Kalthoff J F, Winkler S, Beinert J. Dynamic stress intensity factors for arresting cracks in DCB specimens[J]. International Journal of Fracture, 1976, 12(2):317-319. doi: 10.1007/BF00036990
[4]	姚学锋, 倪受庸, 赵亚溥, 等.含裂纹三点弯曲梁起始扩展的动态分析[J].应用力学学报, 1996, 13(4):122-126. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199600629904 Yao Xuefeng, Ni Shouyong, Zhao Yapu, et al. Dynamic analysis on initial and propagation of three-point-bending beam with crack[J]. Chinese Journal of Applied Mechanics, 1996, 13(4):122-126. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199600629904
[5]	杨仁树, 许鹏, 岳中文, 等.圆孔缺陷与Ⅰ型运动裂纹相互作用的试验研究[J].岩土力学, 2016, 37(6):1597-1603. http://d.old.wanfangdata.com.cn/Periodical/ytlx201606009 Yang Renshu, Xu Peng, Yue Zhongwen, et al. Laboratory study of interaction between a circular hole defect and mode Ⅰ moving crack[J]. Rock and Soil Mechanics, 2016, 37(6):1597-1603. http://d.old.wanfangdata.com.cn/Periodical/ytlx201606009
[6]	黄明利, 朱万成, 逄铭彰.动载荷作用下含偏置裂纹三点弯曲梁破坏过程的数值模拟[J].岩石力学与工程学报, 2007, 26(增刊1):3384-3389. http://d.old.wanfangdata.com.cn/Periodical/yslxygcxb2007z1120 Huang Mingli, Zhu Wangcheng, Pang Mingzhang. Numerical simulation of dynamic failure processes of three-point bending beam with offset notch[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(suppl 1):3384-3389. http://d.old.wanfangdata.com.cn/Periodical/yslxygcxb2007z1120
[7]	Kobashy A S, Chan C F. A dynamic photoelastic analysis of dynamic-tear-test specimen[J]. Experimental Mechanics, 1976, 16(5):176-181. doi: 10.1007/BF02327995
[8]	岳中文, 杨仁树, 孙中辉, 等.含倾斜边裂纹岩石冲击断裂模拟试验[J].煤炭学报, 2010, 35(9):1456-1460. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK201001884638 Yue Zhongwen, Yang Renshu, Sun Zhonghui, et al. Simulation experiment of rock fracture containing inclined edge crack under impact load[J]. Journal of China Coal Society, 2010, 35(9):1456-1460. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK201001884638
[9]	姚学锋, 方竞.冲击载荷下扩展裂纹尖端动态能量释放率分布的焦散线分析[J].爆炸与冲击, 1996, 16(2):111-116. http://www.bzycj.cn/CN/Y1996/V16/I2/111 Yao Xuefeng, Fang Jing. Analysis of caustics on dynamic energy release rate of running crack tip under impact load[J]. Explosion and Shock Waves, 1996, 16(2):111-116. http://www.bzycj.cn/CN/Y1996/V16/I2/111
[10]	Theocaris P S, Andrianopoulous N P. Dynamic three-point bending of short beams studied by caustics[J]. International Journal of Solids and Structures, 1977, 17(7):707-715. doi: 10.1016-0020-7683(81)90007-X/
[11]	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. doi: 10.3321/j.issn:0253-9993.2009.02.010 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. doi: 10.3321/j.issn:0253-9993.2009.02.010
[12]	岳中文, 杨仁树, 郭东明, 等.爆炸应力波作用下缺陷介质裂纹扩展的动态分析[J].岩土力学, 2009, 30(4):949-954. doi: 10.3969/j.issn.1000-7598.2009.04.015 Yue Zhongwen, Yang Renshu, Guo Dongming, et al. Dynamic analysis of crack propagation in media containing flaw under the explosive stress wave[J]. Rock and Soil Mechanics, 2009, 30(4):949-954. doi: 10.3969/j.issn.1000-7598.2009.04.015
[13]	朱万成, 唐春安, 杨天鸿, 等.偏三点弯曲岩石试件中裂纹扩展过程的数值模拟[J].东北大学学报:自然科学版, 2002, 23(6):592-595. doi: 10.3321/j.issn:1005-3026.2002.06.023 Zhu Wancheng, Tang Chun'an, Yang Tianhong, et al. Numerical modeling of crack propagation in rocks under the condition of three-point bending[J]. Journal of Northeastern University (Natural Science), 2002, 23(6):592-595. doi: 10.3321/j.issn:1005-3026.2002.06.023
[14]	Yue Z W, Yang L Y, Wang Y B. Experimental study of crack propagation in polymethyl methacrylate material with double holes under the directional controlled blasting[J]. Fatigue & Fracture of Engineering Materials & Structures, 2013, 36(8):827-833. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=d269ac333bf670b1173f8482672e1d0b
[15]	Sih G C. Mechanics of fracture: Experimental evaluation of stress concentration and intensity factors[M]. Hingham, Mass: Martinus Nijhoff Pubishers, 1981:280-330.
[16]	Papadopoulos G A. Fracture mechanics-the experimental method of caustics and the det.-criterion of fracture[M]. London: Springer-Verlag London Limited, 1993:211-220.