Virtual Triaxial Test Simulation Based on Discrete Element Method for Shear Resistance Property Assessment of Asphalt Mixtures

2012 ◽  
Vol 40 (7) ◽  
pp. 20120138 ◽  
Author(s):  
Jun Yang ◽  
KeLi Wang
Keyword(s):  
Discrete Element Method ◽  
Triaxial Test ◽  
Discrete Element ◽  
Shear Resistance ◽  
Asphalt Mixtures ◽  
Resistance Property ◽  
Simulation Based ◽  
Property Assessment ◽  
Element Method

scholarly journals Investigating the Functions of Particles in Packed Aggregate Blend using a Discrete Element Method

Materials ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 556 ◽  
Author(s):  
Yinghao Miao ◽  
Weixiao Yu ◽  
Yue Hou ◽  
Liyan Guo ◽  
Linbing Wang
Keyword(s):  
Discrete Element Method ◽  
Mechanical Characteristics ◽  
Asphalt Mixture ◽  
Discrete Element ◽  
Asphalt Mixtures ◽  
Coarse Aggregates ◽  
And Function ◽  
Skeleton Structure ◽  
Element Method ◽  
Aggregate Particles

In asphalt mixture, aggregates account for up to 90% of the total volume and play an important role in the mechanical characteristics of asphalt mixture. The proportions of fine and coarse aggregates in gradation, as well as the function of aggregate particles, are important factors for the skeleton structure performance of asphalt mixtures. However, the existing asphalt mixture design methods are mostly based on empirical methods, where the non-uniformity and complexity of the composition of asphalt mixtures are not fully studied. In this study, the skeleton structure of aggregate mixture and function of aggregate are studied and analyzed using the Discrete Element Method (DEM). The Particle Flow 3D (PFC3D) DEM program is used to perform the numerical simulation. The average contact number and interaction forces by aggregate particles of different sizes are obtained and studied. The skeleton structure of aggregate mixture and function of aggregate particles are further analyzed from the meso-structural perspective.

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