A 3 dimensional simulation of the repeated load triaxial test

Nguyen, B and Mohajerani, A 2013, 'A 3 dimensional simulation of the repeated load triaxial test', International Journal of Civil, Architectural Science and Engineering, vol. 7, no. 10, pp. 22-26.


Document type: Journal Article
Collection: Journal Articles

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Title A 3 dimensional simulation of the repeated load triaxial test
Author(s) Nguyen, B
Mohajerani, A
Year 2013
Journal name International Journal of Civil, Architectural Science and Engineering
Volume number 7
Issue number 10
Start page 22
End page 26
Total pages 5
Publisher World Academy of Science, Engineering and Technology
Abstract A typical flexible pavement structure consists of the surface, base, sub-base and subgrade soil. The loading traffic is transferred from the top layer with higher stiffness to the layer below with less stiffness. Under normal traffic loading, the behaviour of flexible pavement is very complex and can be predicted by using the repeated load triaxial test equipment in the laboratory. However, the nature of the repeated load triaxial testing procedure is considered time-consuming, complicated and expensive, and it is a challenge to carry out as a routine test in the laboratory. Therefore, the current paper proposes a numerical approach to simulate the repeated load triaxial test by employing the discrete element method. A sample with particle size ranging from 2.36mm to 19.0mm was constructed. Material properties, which included normal stiffness, shear stiffness, coefficient of friction, maximum dry density and particle density, were used as the input for the simulation. The sample was then subjected to a combination of deviator and confining stress and it was found that the discrete element method is able to simulate the repeated load triaxial test in the laboratory.
Subject Civil Geotechnical Engineering
Keyword(s) Discrete element method
repeated load triaxial
pavement materials.
Copyright notice ©2013
ISSN 1307-6892
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