A simple method for particle shape generation with spherical harmonics

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Title: A simple method for particle shape generation with spherical harmonics
Authors: Wei, DehengWang, JianfengZhao, Budi
Permanent link: http://hdl.handle.net/10197/12653
Date: 1-May-2018
Online since: 2021-11-12T10:09:19Z
Abstract: The increasing interest in particle shape influence on granular mechanics necessitates a fast and robust particle shape generation method. We describe a new approach based on rotation-invariant spherical harmonic (SH) analysis. The core of this method is to construct morphology features at various length scales and superimpose them together to form the overall morphology. This method uses four rotation-invariant SH factors to construct SH coefficient matrices. We quantify particle shape at form, roundness, and compactness to establish the linkage between SH factors and traditional shape parameters. It is found that SH factors effectively control particle features at different scales. This method has a great potential to facilitate the research on granular mechanics considering particle shape effects.
Funding Details: National Science Foundation of China
Research Grant Council of HKSAR
Shenzhen Basic Research Grant
Type of material: Journal Article
Publisher: Elsevier
Journal: Powder Technology
Volume: 330
Start page: 284
End page: 291
Copyright (published version): 2018 Elsevier
Keywords: CompactnessParticle morphologyParticle generationRoundnessSpherical harmonicsX-ray TomographySand particles
DOI: 10.1016/j.powtec.2018.02.006
Language: en
Status of Item: Peer reviewed
ISSN: 0032-5910
This item is made available under a Creative Commons License: https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Appears in Collections:Civil Engineering Research Collection

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