Dynamic mechanical properties of porous rock under impact loading

Yongxiang Dong*, Changjing Xia, Lixing Xiao, Shunshan Feng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationMachinery, Materials Science and Engineering Applications, MMSE 2011
Pages5-9
Number of pages5
DOIs
Publication statusPublished - 2011
Event2011 International Academic Conference on Machinery, Materials Science and Engineering Applications, MMSE 2011 - Wuhan, China
Duration: 15 Jul 201116 Jul 2011

Publication series

NameAdvanced Materials Research
Volume228-229
ISSN (Print)1022-6680

Conference

Conference2011 International Academic Conference on Machinery, Materials Science and Engineering Applications, MMSE 2011
Country/TerritoryChina
CityWuhan
Period15/07/1116/07/11

Keywords

  • Dynamic behavior
  • Impact loading
  • Man-made rock
  • Porosity
  • SHPB

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