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Effect of Grain Content on the Sandstone Properties Using Biconcave Bond Model of DEM

  • Chia-Chi Chiu
  • Shi-Feng Chen
  • Meng-Chia Weng
Conference paper
Part of the Sustainable Civil Infrastructures book series (SUCI)

Abstract

This study adopted the biconcave bond model of DEM (Discrete element method) to investigate the mechanical behavior of sandstone. The biconcave bond model is capable of simulating the cementation between non-contact grains of sandstone with high porosity. It also links the micro parameters and macro material properties. The biconcave bond model incorporated with grain-matrix structure was used to investigate the influence of grain and matrix on sandstone behavior. The simulation shows that the stress-strain curves fit experiment result well. In addition, the sensitivity analysis of GAR (Grain area ratio) and porosity shows that the simulation of UCS and Young’s modulus agree well with the empirical equation.

Notes

Acknowledgements

The authors would like to thank the Ministry of Science and Technology, Taiwan, for financially supporting this research under Contract No. MOST 104-2116-M-002-024.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Civil EngineeringNational Taiwan UniversityTaipeiTaiwan
  2. 2.Department of Civil EngineeringNational Chiao Tung UniversityHinchuTaiwan

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