Experimental study and numerical simulation on shock-damaged rock

GUO Xue-bin; XIAO Zheng-xue; SHI Jin-jin; LIU Fu-sheng; HAN Yong

doi:10.11883/1001-1455(2007)05-0438-07

Volume 27 Issue 5

Oct. 2014

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Article Navigation > Explosion And Shock Waves > 2007 > 27(5): 438-444

LU Yi, HU Xianzhong, ZHANG Guodong. The influence of inert gas on the lower flammability limit of propane[J]. Explosion And Shock Waves, 2022, 42(2): 025401. doi: 10.11883/bzycj-2021-0231

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GUO Xue-bin, XIAO Zheng-xue, SHI Jin-jin, LIU Fu-sheng, HAN Yong. Experimental study and numerical simulation on shock-damaged rock[J]. Explosion And Shock Waves, 2007, 27(5): 438-444. doi: 10.11883/1001-1455(2007)05-0438-07

LU Yi, HU Xianzhong, ZHANG Guodong. The influence of inert gas on the lower flammability limit of propane[J]. Explosion And Shock Waves, 2022, 42(2): 025401. doi: 10.11883/bzycj-2021-0231

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Experimental study and numerical simulation on shock-damaged rock

doi: 10.11883/1001-1455(2007)05-0438-07

1.
Institute of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China;
2.
Laboratory of High-pressure Physics of Southwest Jiaotong University, Chengdu 610031, Sichuan, China;
3.
Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Publish Date: 2007-09-25

Abstract

Abstract

Impact-damage experiments on limestone specimens were carried out on one-stage light-gas gun. Pressure in specimens during shock wave action process was tested by manganin gauge. Impact-damaged and fragmentation properties of lime rock were analyzed by acoustic sounding and splitting cut observation on specimens after shock experiments. Test and analyzed results show that if flyer plate diameter is smaller than that of specimen, the freedom surface of specimen is better, and colliding pressure is 1.0~1.7 GPa, specimen damage has divisional characters with different mechanisms, including head-core space, ring-shape crack area, central section damage space and empennage failure zone. Soft reclaim installation provided a good freedom surface for the side and empennage of specimens, and pull stress made the dominant function for rock damage. Impact-damaged process of rock was numerically simulated using LS-DYNA finite element code to analyze impact-damaged properties of limestone specimens and to validate experimental results.
- solid mechanics,
- damaged properties,
- one-stage light-gas gun,
- slimerock,
- impact experiment

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Experimental study and numerical simulation on shock-damaged rock

doi: 10.11883/1001-1455(2007)05-0438-07

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Experimental study and numerical simulation on shock-damaged rock

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