Particle shape quantification using rotation-invariant spherical harmonic analysis

DC FieldValueLanguage
dc.contributor.authorZhao, Budi-
dc.contributor.authorWei, Deheng-
dc.contributor.authorWang, Jianfeng-
dc.date.accessioned2021-11-08T15:01:35Z-
dc.date.available2021-11-08T15:01:35Z-
dc.date.copyright2017 ICE Publishingen_US
dc.date.issued2017-06-01-
dc.identifier.citationGéotechnique Lettersen_US
dc.identifier.issn2049-825X-
dc.identifier.urihttp://hdl.handle.net/10197/12592-
dc.description.abstractA three-dimensional (3D) particle surface can be mathematically represented by a spherical harmonic (SH) coefficient matrix through surface parameterisation and SH expansion. However, this matrix depends on not only the particle shape but also the size, position and orientation. This study adopts a rotation-invariant analysis to explore the relationship between SH coefficient matrices and particle shape characteristics. Particle shapes are quantified at different scales (i.e., form, roundness and compactness). These methods are applied to two groups of particles (i.e., Leighton Buzzard sand (LBS) particles and LBS fragments) with distinct shape features. By using rotation invariants, the multi-scale nature of particle shape is illustrated, and two novel shape descriptors are defined. The results in this paper serve as a starting point for the generation of particle shapes with prescribed shape features using spherical harmonic.en_US
dc.language.isoenen_US
dc.publisherICE Publishingen_US
dc.subjectParticle crushing/crushabilityen_US
dc.subjectParticle-scale behaviouren_US
dc.subjectSandsen_US
dc.subjectX-ray tomographyen_US
dc.subjectRandom-fieldsen_US
dc.subjectGranular-materialsen_US
dc.subjectClosed surfacesen_US
dc.subjectConcreteen_US
dc.titleParticle shape quantification using rotation-invariant spherical harmonic analysisen_US
dc.typeJournal Articleen_US
dc.internal.authorcontactotherbudi.zhao@ucd.ieen_US
dc.statusPeer revieweden_US
dc.identifier.volume7en_US
dc.identifier.issue2en_US
dc.identifier.startpage190en_US
dc.identifier.endpage196en_US
dc.identifier.doi10.1680/jgele.17.00011-
dc.neeo.contributorZhao|Budi|aut|-
dc.neeo.contributorWei|Deheng|aut|-
dc.neeo.contributorWang|Jianfeng|aut|-
dc.description.othersponsorshipNational Science Foundation of Chinaen_US
dc.description.othersponsorshipResearch Grant Council of HKSARen_US
dc.description.othersponsorshipShenzhen Basic Research Granten_US
dc.date.updated2020-09-05T21:04:09Z-
dc.identifier.grantid51379180-
dc.identifier.grantidCityU 11272916-
dc.identifier.grantidJCYJ20150601102053063-
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-nd/3.0/ie/en_US
item.grantfulltextopen-
item.fulltextWith Fulltext-
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