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

Chia Chi Chiu, Shi Feng Chen, Meng Chia Weng*

*Corresponding author for this work

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

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.

Original languageEnglish
Title of host publicationNew Prospects in Geotechnical Engineering Aspects of Civil Infrastructures - Proceedings of the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes
Subtitle of host publicationFrom Failure to Sustainability, 2018 in HangZhou, China
EditorsHadi Khabbaz, Heejung Youn, Mounir Bouassida
PublisherSpringer Science and Business Media B.V.
Pages38-50
Number of pages13
ISBN (Print)9783319957708
DOIs
StatePublished - 2019
Event5th GeoChina International Conference on Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, 2018 - HangZhou, China
Duration: 23 Jul 201825 Jul 2018

Publication series

NameSustainable Civil Infrastructures
ISSN (Print)2366-3405
ISSN (Electronic)2366-3413

Conference

Conference5th GeoChina International Conference on Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, 2018
CountryChina
CityHangZhou
Period23/07/1825/07/18

Keywords

  • Discrete Element Method (DEM)
  • Linear Contact Model
  • Sandstone Model
  • Sandstone Properties
  • Uniaxial Compressive Strength (UCS)

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