Generation of the Two-dimensional Discrete Element Sample of Asphalt Mixtures

The discrete element method is now increasingly used in the micro-mechanical analysis of asphalt mixtures. The digital image-based method is usually used to prepare the two-dimensional (2D) discrete element sample. However, this method is costly and time-consuming. In this study, a series of algorithms were developed to generate the 2D discrete element sample of asphalt mixtures based on the probability analysis. Firstly, the shapes and sizes of the 2D aggregates cut from three-dimensional 3D aggregates were analyzed and their probabilities were computed. Based on this, an algorithm was proposed to generate the 2D aggregates. Secondly, a method was developed to calculate the number of 2D aggregates in the 2D asphalt mixture sample. Lastly, the algorithms for generating the 2D discrete element sample were summarized and discussed. With these algorithms, the 2D discrete element sample of asphalt mixtures can be generated directly and rapidly.

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01600628
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 6 2016 11:14AM