I型裂纹动态断裂参量的应变片测试方法研究

doi:10.13722/j.cnki.jrme.2017.1542

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Abstract The measurement of dynamic fracture parameters of mode-I crack with the strain gauge was performed through the three-point bending tests under impact loading. Based on the analytical solution of strain field around crack tip derived according to the linear elastic fracture mechanics，two strain gauge methods for the measurement of dynamic fracture parameters of mode-I crack were proposed. A couple of stain gauges were mounted along the crack track at the specific orientation angles of acute and obtuse. The specific acute and obtuse angles between the strain gauge and running crack track were given. A two-parameter formula was established to characterize the crack tip location and the strain field around it. Thus，both the running speed and dynamic stress intensity factor (DSIF) of the crack tip can be precisely calculated. The running speed obtained from both the acute and obtuse strain gauge method and DSIF calculated from the obtuse strain gauge method were close to results from the caustics experiments that conducted simultaneously. In addition，the difference between DSIF of the dynamic caustics method and the obtuse strain gauge method was small in the middle of the specimen，and was large in other positions.

Key words： rock mechanics strain gage mode-I crack dynamic stress intensity factor running speed

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	Articles by authors
	LI Qing1
	YU Qiang1
	ZHANG Suixi1
	2
	TIAN Ce1
	QIAN Lu1
	LI Na1

Cite this article:

LI Qing1,YU Qiang1,ZHANG Suixi1, et al. Strain gauge method for the measurement of dynamic fracture parameters of mode-I crack[J]. , 2018, 37(6): 1430-1437.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2017.1542 OR http://www.rockmech.org/EN/Y2018/V37/I6/1430

[14]	HU X，GUAN J，WANG Y，et al. Comparison of boundary and size effect models based on new developments[J]. Engineering Fracture Mechanics，2017，175：146-167.
[13]	QI C Z，WANG M，BAI J，et al. Mechanism underlying dynamic size
[1]	杨仁树，陈程，王煦，等. 不同直径空孔对爆生裂纹扩展行为影响规律的实验研究[J]. 煤炭学报，2017，42(10)：2 498-2 503. (YANG Renshu，CHEN Cheng，WANG Xu，et al. Experimental investigation on the influence of different diameter empty holes on the crack growth behavior of blasting[J]. Journal of China Coal Society，2017，42(10)：2 498-2 503.(in Chinese))
[3]	岳中文，郭洋，王煦，等. 空孔形状对岩石定向断裂爆破影响规律的研究[J]. 岩土力学，2016，37(2)：376-382.(YUE Zhongwen，GUO Yang，WANG Xu，et al. Influence of empty hole shape on directional fracture controlled blasting of rock[J]. Rock and Soil Mechanics，2016，37(2)：376-382.(in Chinese))
[5]	IRWIN R G. Analysis of stresses and strains near the end of a crack traversing a plate[J]. Journal of Applied Mechanics，1957，24(3)：361-364.
[4]	岳中文，宋耀，王煦，等. 不同倾角预制裂纹缺陷与运动裂纹的相互作用[J]. 爆炸与冲击，2017，37(1)：162-168.(YUE Zhongwen，SONG Yao，WANG Xu，et al. Interaction between a pre-existing crack defect with different angle and a running crack[J]. Explosion and Shock Waves，2017，37(1)：162-168.(in Chinese))
	effect on rock mass strength[J]. International Journal of Impact Engineering，2014，68：1-7.
[8]	DALLY J W，SANFORD R J. Strain-gage methods for measuring the open-mode stress-intensity factor， [J]. Experimental Mechanics，1987，27(4)：381-388.
[17]	杨仁树，左进京，杨立云，等. 爆炸应力波作用下动、静裂纹相互作用的实验研究[J]. 爆炸与冲击，2017，37(6)：952-958.(YANG Renshu，ZUO Jinjing，YANG Liyun，et al. Dynamic and static crack interaction under action of explosive stress wave[J]. Explosion and Shock Waves，2017，37(6)：952-958.(in Chinese))
[2]	夏开文，徐颖，姚伟，等. 静态预应力条件作用下岩板动态破坏行为试验研究[J]. 岩石力学与工程学报，2017，36(5)：1 122-1 132. (XIA Kaiwen，XU Ying，YAO Wei，et al. Experimental study of dynamic fracture behavior of brittle rock plate under static pre-loading[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(5)：1 122-1 132.(in Chinese))
[7]	DEHNAVI M Y，KHALEGHIAN S，EMAMI A，et al. Utilizing digital image correlation to determine stress intensity factors[J]. Polymer Testing，2014，37：28-35.
[6]	WILLIAMS M L. On the stress distribution at the base of a stationary crack[J]. Journal of Applied Mechanics，1957，24(3)：109-114.
[9]	YUE Z W，SONG Y，HAN R J，et al. Experimental study on dynamic fracture behavior of three -point bending beam with double deformity inclusions[J]. Journal of Southeast University，2016，32(3)：333-338.
[10]	YUE Z W，SONG Y，YANG R S，et al. Comparison of caustics and the strain gage method for measuring mode I stress intensity factor of PMMA material[J]. Polymer Testing，2017，59：10-19.
[11]	SARANGI H，MURTHY K S R K，CHAKRABORTY D. Experimental verification of optimal strain gage locations for the accurate determination of mode I stress intensity factors[J]. Engineering Fracture Mechanics，2013，110：189-200.
[16]	李清，于强，朱各勇，等. 不同药量的切缝药包双孔爆破裂纹扩展规律试验[J]. 岩石力学与工程学报，2017，36(9)：2 205-2 212. (LI Qing，YU Qiang，ZHU Geyong，et al. Experimental study of crack propagation under two-hole slotted cartridge blasting with different amounts of charge[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(9)：2 205-2 212.(in Chinese))
[18]	李清. 爆炸致裂的岩石动态力学行为与断裂控制试验研究[博士学位论文][D]. 北京：中国矿业大学，2009.(LI Qing. Experiment of fracture behaviors and control for crack propagation under blasting load[Ph. D. Thesis][D]. Beijing：China University of Mining and Technology，2009.(in Chinese))
[19]	BERGER J R，DALLY J W. An overdeterministic approach for measuring using strain gages[J]. Experimental Mechanics，1988，28(2)：142-145.
[20]	岳中文，宋耀，杨仁树，等. 冲击荷载下深梁动态断裂行为的光弹性实验[J]. 振动与冲击，2017，36(19)：236-241.(YUE Zhongwen，SONG Yao，YANG Renshu，et al. Photoelastic experiments on deep beam fracture behaviors under impact load[J]. Journal of Vibration and Shock，2017，36(19)：236-241.(in Chinese))
[22]	赵熙，鞠杨，郑泽民. 混合型应力强度因子的光弹性多参数测定[J]. 工程科学学报，2017，39(8)：1 288-1 294.(ZHAO Xi，JU Yang，ZHENG Zemin. Multiple parameter measurement of mixed-mode stress intensity factors using the photoelastic method[J]. Chinese Journal of Engineering，2017，39(8)：1 288-1 294.(in Chinese))
[12]	CHAKRABORTY D，MURHTY K S R K，CHAKRABORTY D. Determination of KI in orthotropic laminates with double ended cracks using a single strain gage technique[J]. Theoretical and Applied Fracture Mechanics，2016，82：96-106.
[15]	范天佑. 断裂动力学引论[M]. 北京：北京理工大学出版社，1990：116-123.(FAN Tianyou. An introduction to fracture dynamics[M]. Beijing：Beijing Institute of Technology Press，1990：116-123.(in Chinese))
[21]	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)：1 597-1 603.(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)：1 597-1 603.(in Chinese))