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Dynamic mechanical properties of porous rock under impact loading

  • Yongxiang Dong*
  • , Changjing Xia
  • , Lixing Xiao
  • , Shunshan Feng
  • *此作品的通讯作者
  • China University of Mining & Technology, Beijing
  • Beijing Institute of Technology

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

摘要

Dynamic impact experiments of man-made rock were carried out with the Split Hopkinson Pressure Bar (SHPB) apparatus in this paper. The impact process was analyzed and the influence of rock porosity on dynamic mechanical behavior was investigated. The stress-strain curves in rock were obtained by the one-dimensional stress wave theory. The curve lays foundation for numeric simulation of rock fracture under impact loading. The damage profiles of rock specimen under the impact loading show that the man-made rock exhibits obvious shear damage under the impact loading because it is a typical porous medium containing large quantities of defects such as pores, cracks and grain boundaries at the microscale. The experimental results also indicated that rock porosity plays an important role in dynamic mechanical behavior.

源语言英语
主期刊名Machinery, Materials Science and Engineering Applications, MMSE 2011
页5-9
页数5
DOI
出版状态已出版 - 2011
活动2011 International Academic Conference on Machinery, Materials Science and Engineering Applications, MMSE 2011 - Wuhan, 中国
期限: 15 7月 2011 → 16 7月 2011

丛书

姓名Advanced Materials Research
卷228-229
ISSN(印刷版)1022-6680

会议

会议2011 International Academic Conference on Machinery, Materials Science and Engineering Applications, MMSE 2011
国家/地区中国
市Wuhan
时期15/07/11 → 16/07/11

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