Simulation of granular material in Distinct Element Model based on real particle shape

C. Wang, Pengfei Liu, Markus Oeser, X. Zhou, H. Wang

Research output: Chapter in Book/Published conference outputConference publication

Abstract

An innovative approach was developed in this research to generate aggregates based on real shape through DEM. The shape indexes of aggregates were captured by Aggregate Image Measuring System (AIMS). The output was then processed byMATLAB to obtain the edge points of particles. The edge points were used to generate aggregate in DEM. Based on the former procedures, the aggregates morphological database that record shape indexes were established. The generation of DE models was optimized in the study to approach more realistic model geometries. Clump-based models with real morphologies were compared with laboratory tests and conventional ball-based models in the repose angle test. The clump-based model fitted better with the laboratory tests compared with ball-based models. Finally, a pavement compaction model was established. The influence of aggregate gradation and the movement of asphalt mixture during the compaction were investigated.

Original languageEnglish
Title of host publicationAdvances in Materials and Pavement Performance Prediction II - Contributions to the 2nd International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2020
EditorsK. Anupam, A.T. Papagiannakis, A. Bhasin, D. Little
PublisherCRC Press/Balkema
Pages109-112
Number of pages4
ISBN (Electronic)9780367461690
Publication statusPublished - 9 Dec 2020
Event2nd International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2020 - San Antonio, United States
Duration: 27 May 202029 May 2020

Publication series

NameAdvances in Materials and Pavement Performance Prediction II - Contributions to the 2nd International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2020

Conference

Conference2nd International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2020
Country/TerritoryUnited States
CitySan Antonio
Period27/05/2029/05/20

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