Exploration of Mechanical Behaviors of Argillaceous Siltstone through Photoelastic Model Test and DEM Modelling
Joint Authors
Li, Weike
Han, Jianqiang
Cui, Jie
Luo, Weili
Zheng, Guangzao
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-04
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
This paper aims at investigating mechanical behaviors of argillaceous siltstone through a photoelastic model test and DEM modelling.
Both bonded and unbonded conditions were considered.
The photoelastic model was fabricated in a controllable environment, and its scaled factor was 1 : 200 in length and 11.9 : 1 in Young’s modulus.
The polariscope was designed to have an area-based LCD source and an automatic digital camera.
A calibration test was carried out to obtain the relationship between the contact force and the average intensity gradient squared.
A 2D DEM simulation is carried out for a 100 mm × 200 mm rectangular container filled with particles of 6 mm and 10 mm, in which the bonding effect is realized by adjusting the shear contact stiffness.
The results show that both the photoelastic model and DEM modelling are able to capture the evolution of force chain network, effective contact number and stress concentration factor, and rheological behaviors when it is subjected to an increasing uniaxial load.
The bonding effect plays an important role in the mechanical performance of argillaceous siltstone.
American Psychological Association (APA)
Li, Weike& Han, Jianqiang& Cui, Jie& Luo, Weili& Zheng, Guangzao. 2019. Exploration of Mechanical Behaviors of Argillaceous Siltstone through Photoelastic Model Test and DEM Modelling. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1117400
Modern Language Association (MLA)
Li, Weike…[et al.]. Exploration of Mechanical Behaviors of Argillaceous Siltstone through Photoelastic Model Test and DEM Modelling. Advances in Civil Engineering No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1117400
American Medical Association (AMA)
Li, Weike& Han, Jianqiang& Cui, Jie& Luo, Weili& Zheng, Guangzao. Exploration of Mechanical Behaviors of Argillaceous Siltstone through Photoelastic Model Test and DEM Modelling. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1117400
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117400