Study of the splitting crack propagation morphology using high-speed 3D DIC

Xu Zhenyang; Yang Jun; Guo Lianjun

doi:10.11883/1001-1455(2016)03-0400-07

Volume 36 Issue 3

Oct. 2018

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Xu Zhenyang, Yang Jun, Guo Lianjun. Study of the splitting crack propagation morphology using high-speed 3D DIC[J]. Explosion And Shock Waves, 2016, 36(3): 400-406. doi: 10.11883/1001-1455(2016)03-0400-07

Citation:

Xu Zhenyang, Yang Jun, Guo Lianjun. Study of the splitting crack propagation morphology using high-speed 3D DIC[J]. Explosion And Shock Waves, 2016, 36(3): 400-406. doi: 10.11883/1001-1455(2016)03-0400-07

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Study of the splitting crack propagation morphology using high-speed 3D DIC

doi: 10.11883/1001-1455(2016)03-0400-07

1.
College of Mining Engineering, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China
2.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

Received Date: 2014-10-24
Rev Recd Date: 2015-04-08
Publish Date: 2016-05-25

Abstract

Abstract

To explore a method for control over the boulders splitting morphology, cylindrical concrete specimens were penetrated by a linear-shaped charge, the splitting cracks' propagation and development were photographed and the splitting development process of their 3D deformation characteristics were analyzed using high-speed 3D DIC. The results show that the velocity of the crack propagation within the data analysis region exhibits a tendency for a step-by-step increase. The peak velocity and the average velocity are respectively 235.52 m/s and 140.89 m/s. The impact of the linear shaped-charge jet plays a significant role in determining the splitting of the target so that the cracks of the target propagated symmetrically downward in an s-shape along the axis, and on its path the crack showed three obvious inflection points, where branch cracks were produced whose propagation distance was below 5 cm. The shape and location of the main strain concentration determines the crack propagation trend and path, and the tensile strain concentration occurs before the crack appears. The specimen exhibits a quasi-static splitting and the cracks have a fairly even distribution.
- mechanics of explosion,
- crack,
- High-speed DIC-3D,
- concrete,
- velocity,
- strain

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References(16)

References

[1]	钱伟长.穿甲力学[M].北京:国防工业出版社, 1984.
[2]	Alekseevskii V P. Penetration of a rod into a target at high velocity[J]. Combustion, Explosion, and Shock Waves, 1966, 2(2):63-66. doi: 10.1007-BF00749237/
[3]	Sternberg J. Material properties determining the resistance of ceramics to high velocity penetration[J]. Journal of Applied Physics, 1989, 65(9):3417-3424. doi: 10.1063/1.342659
[4]	威廉·普·沃尔特斯, 乔纳斯·埃·朱卡斯.成型装药原理及其应用[M].王树魁, 贝静芬, 译.北京:兵器工业出版社, 1992.
[5]	肖强强, 黄正祥, 祖旭东.双材质复合射流对混凝土的侵彻[J].爆炸与冲击, 2014, 34(4):457-463. doi: 10.11883/1001-1455(2014)04-0457-07 Xiao Qiangqiang, Huang Zhengxiang, Zu Xudong. Penetration of jacketed jet into concret[J]. Explosion and Shock Waves, 2014, 34(4):457-463. doi: 10.11883/1001-1455(2014)04-0457-07
[6]	Kirugulige M S, Tippur H V. Measurement of fracture parameters for a mixed-mode crack driven by stress waves using image correlation technique and high-speed digital hotography[J]. Strain, 2009, 45(2):108-122. doi: 10.1111/str.2009.45.issue-2
[7]	Chevalier L, Calloch S, Hild F, et al. Digital image correlation used to analyze the multiaxial behavior of rubber-like materials[J]. European Journal of Mechanics-A: Solids, 2001, 20(2):169-187. doi: 10.1016/S0997-7538(00)01135-9
[8]	Erdogan F, Sih G C. On the crack extension in plates under plane loading and transverse shear[J]. Journal of Basic Engineering, 1963, 85(4):519-525. doi: 10.1115/1.3656897
[9]	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. http://d.old.wanfangdata.com.cn/Periodical/ytlx200904015 Yue Zhongwen, Yang Renshu, Guo Dongming, et al. Dynamic analysis of crack propagation in media containing flaws under the explosive stress wave[J]. Rock and Soil Mechanics, 2014, 35(8):2048-2414. http://d.old.wanfangdata.com.cn/Periodical/ytlx200904015
[10]	肖正学, 张志呈, 郭学彬.断裂控制爆破裂纹发展规律的研究[J].岩石力学与工程学报, 2002, 21(4):546-549. doi: 10.3321/j.issn:1000-6915.2002.04.019 Xiao Zhengxue, Zhang Zhicheng, Guo Xuebin. Research on crack developing law of rock fracture controlled blasting[J]. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(4):546-549. doi: 10.3321/j.issn:1000-6915.2002.04.019
[11]	戴俊.岩石动力学特性与爆破理论[M].北京:冶金工业出版社, 2002.
[12]	王汉军, 黄风雷, 张庆明.岩石定向断裂爆破的力学分析及参数研究[J].煤炭学报, 2003, 28(4):399-402. http://d.old.wanfangdata.com.cn/Periodical/mtxb200304014 Wang Hanjun, Huang Fenglei, Zhang Qingming. Mechanics effect analysis and parameters study on borehole directional fracture blasting[J]. Journal of China Coal Society, 2003, 28(4):309-402. http://d.old.wanfangdata.com.cn/Periodical/mtxb200304014
[13]	Chao Y J, Sutton M A, Peters W H, et al. Measurement of three-dimensional displacements in deformable bodies by digital image processing[C]//1989 SEM Spring Conference on Experimental Mechanics. Cambridge, 1989: 139-146.
[14]	Kolsky H, Shearman A C. Investigation of fractures produced by transient stress waves[J]. Research, 1949, 2(8):384-389.
[15]	杨建华, 卢文波, 胡英国, 等.隧洞开挖重复爆炸荷载作用下围岩累积损伤特性[J].岩土力学, 2014, 35(2):512-518. http://d.old.wanfangdata.com.cn/Periodical/ytlx201402030 Yang Jianhua, Lu Wenbo, Hu Yingguo, et al. Accumulated damage in surrounding rocks due to repeated blasting loads during blasting excavation of tunnels[J]. Rock and Soil Mechanics, 2014, 35(2):512-518. http://d.old.wanfangdata.com.cn/Periodical/ytlx201402030
[16]	严成增, 郑宏, 孙冠华, 等.基于数字图像技术的岩土材料有限元-离散元分析[J].岩土力学, 2014, 35(8):2048-2414. http://d.old.wanfangdata.com.cn/Periodical/ytlx201408038 Yan Chengzeng, Zheng Hong, Sun Guanhua, et al. FDEM of geomaterials based on digital image technology[J]. Rock and Soil Mechanics, 2014, 35(8):2048-2414. http://d.old.wanfangdata.com.cn/Periodical/ytlx201408038