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Home > Archive>Volume 46, Issue 08, 2018 >1049-1056. DOI:10.11908/j.issn.0253-374x.2018.08.007
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Experimental Study on Three-Dimension Simulation Design and Virtual Shear Test of Asphalt Mixture
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    Abstract:

    Firstly, clumps were generated by using the convex hull algorithm and the Bubble Pack algorithm to simulate coarse aggregate particles. Then, asphalt mixture virtual samples were constructed by assembling virtual coarse aggregate particles and virtual asphalt mortars and creating voids based on the PFC 5.0 3D. Finally, the virtual triaxial shear test based on the servo control principle was carried out, and the laboratory test data and the virtual test data were compared and analyzed. The results show that based on the PFC 5.0 3D, when the clumps being used to characterize the coarse aggregate particles in the virtual sample of the asphalt mixture, not only the precision of clumps is controlled but also the surface structure characteristic is more realistic. The threedimension discrete element numerical model of asphalt mixture can effectively describe the mechanical behavior of asphalt mixture.

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LI Zhi, WANG Zishuo, DENG Zhigang, WU Wenliang, SUN Yangyong. Experimental Study on Three-Dimension Simulation Design and Virtual Shear Test of Asphalt Mixture[J].同济大学学报(自然科学版),2018,46(08):1049~1056

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History
  • Received:November 02,2017
  • Revised:June 11,2018
  • Adopted:March 07,2018
  • Online: September 05,2018
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