Building method of discrete element module of true aggregate particles based on X-ray CT image

A particle discrete element and construction method technology, applied in the field of real aggregate particle discrete element model construction, can solve problems such as low fitting accuracy and large number of model units
CN104599321AInactive Publication Date: 2015-05-06HEFEI UNIV OF TECH
9 Cites 13 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HEFEI UNIV OF TECH
Publication Date
2015-05-06
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a building method of a discrete element module of true aggregate particles based on an X-ray CT image which is provided to the aggregate particles in a bituminous mixture test piece of numerical analysis of a bituminous mixture, so as to realize that the discrete element module of true aggregate particles with highly fitted geometrical shape of a true aggregation and the minimal quantity of discrete elements can be automatically built. According to the building method provided by the invention, based on the discrete element analysis of the bituminous mixture test piece in a microstructure, the automatic switching between the X-ray CT section image of the bituminous mixture test piece and the discrete element module of true aggregate particles with precisely fitted geometrical shape of the true aggregation and the minimal quantity of discrete elements can be completed to assist the building of the discrete element module of the bituminous mixture test piece.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of numerical analysis, in particular to a method for constructing a discrete element model of real aggregate particles based on X-ray CT images. Background technique

[0002] Three-dimensional mesomechanical analysis technology is an important technology to evaluate the macroscopic pavement performance of asphalt pavement by studying the internal mesostructure of asphalt mixture. Among them, the establishment of a three-dimensional numerical model that can reflect the real mesoscopic composition of the road test specimen is an important prerequisite for obtaining credible analysis results.

[0003] Among the numerical analysis methods, the discrete element method has obvious advantages in accurately simulating the deformation, cracking and other mesomechanical behavior of asphalt mixture. Since the aggregate particles inside the mixture occupy a large proportion of the mixture components, its geometry has an importan...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More