Effect of Grain Content on the Sandstone Properties Using Biconcave Bond Model of DEM
Journal
Sustainable Civil Infrastructures
Start Page
38
End Page
50
ISSN
23663405
ISBN (of the container)
9783319957708
Date Issued
2019
Author(s)
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. © 2019, Springer International Publishing AG, part of Springer Nature.
Event(s)
5th GeoChina International Conference on Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, 2018
Subjects
Discrete Element Method (DEM)
Linear Contact Model
Sandstone Model
Sandstone Properties
Uniaxial Compressive Strength (UCS)
Publisher
Springer Science and Business Media B.V.
Description
5th GeoChina International Conference on Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, 2018, 23 July 2018 through 25 July 2018, HangZhou
Type
conference paper