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SCIENCE CHINA Technological Sciences, Volume 61 , Issue 3 : 359-369(2018) https://doi.org/10.1007/s11431-017-9136-9

Numerical study of soil-rock mixture: Generation of random aggregate structure

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  • ReceivedFeb 27, 2017
  • AcceptedAug 28, 2017
  • PublishedDec 1, 2017

Abstract

The soil-rock mixture (SRM) is highly heterogeneous. Before carrying out numerical analysis, a structure model should be generated. A reliable way to obtain such structure is by generating random aggregate structure based on random sequential addition (RSA). The classical RSA is neither efficient nor robust since valid positions to place new inclusions are formulated by trial, which involves repetitive overlapping tests. In this paper, the algorithm of Entrance block between block A and B (EAB) is synergized with background mesh to redesign RSA so that permissible positions to place new inclusions can be predicted, resulting in dramatic improvement in efficiency and robustness.


Funded by

National Basic Research Program of China (973 Program)(2014CB047100)

National Natural Science Foundation of China(11572009,51538001,51609240)


Acknowledgment

This work was supported by the National Basic Research Program of China (973 Program) (Grant No. 2014CB047100), and the National Natural Science Foundation of China (Grant Nos. 11572009, 51538001 and 51609240).


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