Dynamic Mechanical Properties of Porous Rock under Impact Loading

Yong Xiang Dong; Chang Jing Xia; Li Xing Xiao; Shun Shan Feng

doi:10.4028/www.scientific.net/AMR.228-229.5

Paper Titles

Preface and Committees

Development of New Patching Materials for Bridge and Tunnel Structures
p.1

Dynamic Mechanical Properties of Porous Rock under Impact Loading
p.5

A Decision Making Methodology to Divide Virtualized Resources Morphologies
p.10

Research and Development of Intelligent Design System for Machine Tool Fixture Based on KBE
p.17

Low Temperature Anti-Cracking Performance of Brucite-Fiber-Reinforced Asphalt Concrete
p.23

The Light-Sensitive Character of WO₃ Nanorods Synthesized by the Hydrothermal Method
p.29

Preparation of Spherical NiO Nanoparticles by the Thermal Decomposition of NiC₂O₄ 2H₂O Precursor in the Air
p.34

Development of a Robotic System to Examine Outer Cylinder of Pipes in Steam Generators
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 228-229Dynamic Mechanical Properties of Porous Rock under...

Dynamic Mechanical Properties of Porous Rock under Impact Loading

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.

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Periodical:

Advanced Materials Research (Volumes 228-229)

Pages:

5-9

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.228-229.5

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Online since:

April 2011

Authors:

Yong Xiang Dong, Chang Jing Xia, Li Xing Xiao, Shun Shan Feng

Keywords:

Dynamic Behavior, Impact Loading, Man-Made Rock, Porosity, Split Hopkinson Pressure Bar (SHPB)

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