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《Explosion and Shock Waves》 2008-02
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Experimental study of damage and fracture zone in cement sample subjected to exploding wave

LIN Ying-song1,2,WANG Li1,DING Yan-sheng2,JIANG Jin-bao1,SUN Feng-cheng1,ZHANG Bao-kang1,LIU Zhao-nian1(1.China University of Petroleum,College of Petroleum Engineering,Dongying 257061,Shangdong,China;2.Institute of Mechanics,Chinese Academy of Sciences,Beijing 100080,China)  
The phenomenon of the rock damage and fracture by shock wave of exploding in fractures was simulated via the experiment of exploding on the surface of the cement sample in deep water.The peak pressure decline of shock wave,which was suitable for this experiment,was obtained pm≈8.2W~1/3/R1.46.Results indicate that the crushed zone and tensile damage zone dimensions are about 2~5,20~30 times of the powder characteristic dimension respectively.Approximate energy consumed by shock wave to generate crushed and fracture zone in cement sample is 2%~7% of the total energy.
【Fund】: 国家高技术研究发展计划基金项目(2007AA06Z208);; 国家863计划基金项目
【CateGory Index】: O383
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8 YAO Yu-xin (Dept.of Transportation Engineering, Liaoning Dalian Jiaotong University,Dalian,116028, China);On Fractal Dimension concerned with Fragmentation[J];Journal of Benxi College of Metallurgy;2005-01
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