Computer simulation of random loose packings of micro-particles in presence of adhesion and friction
With a novel 3D discrete-element method specially developed with adhesive contact mechanics, random loose packings of uniform spherical micron-sized particles are fully investigated. The results show that large velocity, large size or weak adhesion can produce a relatively dense packing when other p...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Liu, Wenwei [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Powder technology - Amsterdam [u.a.] : Elsevier, 1967, 302(2016), Seite 414-422 |
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| Übergeordnetes Werk: |
volume:302 ; year:2016 ; pages:414-422 |
| Links: |
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| DOI / URN: |
10.1016/j.powtec.2016.08.068 |
|---|
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OLC1985039303 |
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| 520 | |a With a novel 3D discrete-element method specially developed with adhesive contact mechanics, random loose packings of uniform spherical micron-sized particles are fully investigated. The results show that large velocity, large size or weak adhesion can produce a relatively dense packing when other parameters are fixed, and these combined effects can be characterized by a dimensionless adhesion parameter ( Ad=\omega/2\rho_pU^2_0R). Four regimes are identified based on the value of Ad: RCP regime with Ad<\sim 0.01; RLP regime with \sim 0.01<Ad<1; adhesion regime with 1<Ad<20 and an asymptotic regime with Ad>20. Force distribution of these adhesive loose packings follows P(f)\sim f^\theta for small forces and P(f)\sim \exp^{-\beta f} for big forces, respectively, which shares a similar form with that in packings without adhesion but results in distinct exponents of \theta=0.879, \beta=0.839. A local mechanical equilibrium analysis shows that adhesion enhances both sliding and rolling resistance so that fewer neighbours are needed to satisfy the force and torque balance. | ||
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| 700 | 1 | |a Chen, Sheng |4 oth | |
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10.1016/j.powtec.2016.08.068 doi PQ20170301 (DE-627)OLC1985039303 (DE-599)GBVOLC1985039303 (PRQ)a1555-d3db3f360a13229cfe7e92c4ae53afe938fbfe4f357bf761e94b08d7b6c1cef90 (KEY)0080853920160000302000000414computersimulationofrandomloosepackingsofmicropart DE-627 ger DE-627 rakwb eng 660 DNB Liu, Wenwei verfasserin aut Computer simulation of random loose packings of micro-particles in presence of adhesion and friction 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier With a novel 3D discrete-element method specially developed with adhesive contact mechanics, random loose packings of uniform spherical micron-sized particles are fully investigated. The results show that large velocity, large size or weak adhesion can produce a relatively dense packing when other parameters are fixed, and these combined effects can be characterized by a dimensionless adhesion parameter ( Ad=\omega/2\rho_pU^2_0R). Four regimes are identified based on the value of Ad: RCP regime with Ad<\sim 0.01; RLP regime with \sim 0.01<Ad<1; adhesion regime with 1<Ad<20 and an asymptotic regime with Ad>20. Force distribution of these adhesive loose packings follows P(f)\sim f^\theta for small forces and P(f)\sim \exp^{-\beta f} for big forces, respectively, which shares a similar form with that in packings without adhesion but results in distinct exponents of \theta=0.879, \beta=0.839. A local mechanical equilibrium analysis shows that adhesion enhances both sliding and rolling resistance so that fewer neighbours are needed to satisfy the force and torque balance. Condensed Matter Soft Condensed Matter Li, Shuiqing oth Chen, Sheng oth Enthalten in Powder technology Amsterdam [u.a.] : Elsevier, 1967 302(2016), Seite 414-422 (DE-627)129504688 (DE-600)208997-X (DE-576)014908409 0032-5910 nnns volume:302 year:2016 pages:414-422 http://dx.doi.org/10.1016/j.powtec.2016.08.068 Volltext http://arxiv.org/abs/1511.02315 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 AR 302 2016 414-422 |
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10.1016/j.powtec.2016.08.068 doi PQ20170301 (DE-627)OLC1985039303 (DE-599)GBVOLC1985039303 (PRQ)a1555-d3db3f360a13229cfe7e92c4ae53afe938fbfe4f357bf761e94b08d7b6c1cef90 (KEY)0080853920160000302000000414computersimulationofrandomloosepackingsofmicropart DE-627 ger DE-627 rakwb eng 660 DNB Liu, Wenwei verfasserin aut Computer simulation of random loose packings of micro-particles in presence of adhesion and friction 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier With a novel 3D discrete-element method specially developed with adhesive contact mechanics, random loose packings of uniform spherical micron-sized particles are fully investigated. The results show that large velocity, large size or weak adhesion can produce a relatively dense packing when other parameters are fixed, and these combined effects can be characterized by a dimensionless adhesion parameter ( Ad=\omega/2\rho_pU^2_0R). Four regimes are identified based on the value of Ad: RCP regime with Ad<\sim 0.01; RLP regime with \sim 0.01<Ad<1; adhesion regime with 1<Ad<20 and an asymptotic regime with Ad>20. Force distribution of these adhesive loose packings follows P(f)\sim f^\theta for small forces and P(f)\sim \exp^{-\beta f} for big forces, respectively, which shares a similar form with that in packings without adhesion but results in distinct exponents of \theta=0.879, \beta=0.839. A local mechanical equilibrium analysis shows that adhesion enhances both sliding and rolling resistance so that fewer neighbours are needed to satisfy the force and torque balance. Condensed Matter Soft Condensed Matter Li, Shuiqing oth Chen, Sheng oth Enthalten in Powder technology Amsterdam [u.a.] : Elsevier, 1967 302(2016), Seite 414-422 (DE-627)129504688 (DE-600)208997-X (DE-576)014908409 0032-5910 nnns volume:302 year:2016 pages:414-422 http://dx.doi.org/10.1016/j.powtec.2016.08.068 Volltext http://arxiv.org/abs/1511.02315 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 AR 302 2016 414-422 |
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10.1016/j.powtec.2016.08.068 doi PQ20170301 (DE-627)OLC1985039303 (DE-599)GBVOLC1985039303 (PRQ)a1555-d3db3f360a13229cfe7e92c4ae53afe938fbfe4f357bf761e94b08d7b6c1cef90 (KEY)0080853920160000302000000414computersimulationofrandomloosepackingsofmicropart DE-627 ger DE-627 rakwb eng 660 DNB Liu, Wenwei verfasserin aut Computer simulation of random loose packings of micro-particles in presence of adhesion and friction 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier With a novel 3D discrete-element method specially developed with adhesive contact mechanics, random loose packings of uniform spherical micron-sized particles are fully investigated. The results show that large velocity, large size or weak adhesion can produce a relatively dense packing when other parameters are fixed, and these combined effects can be characterized by a dimensionless adhesion parameter ( Ad=\omega/2\rho_pU^2_0R). Four regimes are identified based on the value of Ad: RCP regime with Ad<\sim 0.01; RLP regime with \sim 0.01<Ad<1; adhesion regime with 1<Ad<20 and an asymptotic regime with Ad>20. Force distribution of these adhesive loose packings follows P(f)\sim f^\theta for small forces and P(f)\sim \exp^{-\beta f} for big forces, respectively, which shares a similar form with that in packings without adhesion but results in distinct exponents of \theta=0.879, \beta=0.839. A local mechanical equilibrium analysis shows that adhesion enhances both sliding and rolling resistance so that fewer neighbours are needed to satisfy the force and torque balance. Condensed Matter Soft Condensed Matter Li, Shuiqing oth Chen, Sheng oth Enthalten in Powder technology Amsterdam [u.a.] : Elsevier, 1967 302(2016), Seite 414-422 (DE-627)129504688 (DE-600)208997-X (DE-576)014908409 0032-5910 nnns volume:302 year:2016 pages:414-422 http://dx.doi.org/10.1016/j.powtec.2016.08.068 Volltext http://arxiv.org/abs/1511.02315 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 AR 302 2016 414-422 |
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10.1016/j.powtec.2016.08.068 doi PQ20170301 (DE-627)OLC1985039303 (DE-599)GBVOLC1985039303 (PRQ)a1555-d3db3f360a13229cfe7e92c4ae53afe938fbfe4f357bf761e94b08d7b6c1cef90 (KEY)0080853920160000302000000414computersimulationofrandomloosepackingsofmicropart DE-627 ger DE-627 rakwb eng 660 DNB Liu, Wenwei verfasserin aut Computer simulation of random loose packings of micro-particles in presence of adhesion and friction 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier With a novel 3D discrete-element method specially developed with adhesive contact mechanics, random loose packings of uniform spherical micron-sized particles are fully investigated. The results show that large velocity, large size or weak adhesion can produce a relatively dense packing when other parameters are fixed, and these combined effects can be characterized by a dimensionless adhesion parameter ( Ad=\omega/2\rho_pU^2_0R). Four regimes are identified based on the value of Ad: RCP regime with Ad<\sim 0.01; RLP regime with \sim 0.01<Ad<1; adhesion regime with 1<Ad<20 and an asymptotic regime with Ad>20. Force distribution of these adhesive loose packings follows P(f)\sim f^\theta for small forces and P(f)\sim \exp^{-\beta f} for big forces, respectively, which shares a similar form with that in packings without adhesion but results in distinct exponents of \theta=0.879, \beta=0.839. A local mechanical equilibrium analysis shows that adhesion enhances both sliding and rolling resistance so that fewer neighbours are needed to satisfy the force and torque balance. Condensed Matter Soft Condensed Matter Li, Shuiqing oth Chen, Sheng oth Enthalten in Powder technology Amsterdam [u.a.] : Elsevier, 1967 302(2016), Seite 414-422 (DE-627)129504688 (DE-600)208997-X (DE-576)014908409 0032-5910 nnns volume:302 year:2016 pages:414-422 http://dx.doi.org/10.1016/j.powtec.2016.08.068 Volltext http://arxiv.org/abs/1511.02315 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 AR 302 2016 414-422 |
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10.1016/j.powtec.2016.08.068 doi PQ20170301 (DE-627)OLC1985039303 (DE-599)GBVOLC1985039303 (PRQ)a1555-d3db3f360a13229cfe7e92c4ae53afe938fbfe4f357bf761e94b08d7b6c1cef90 (KEY)0080853920160000302000000414computersimulationofrandomloosepackingsofmicropart DE-627 ger DE-627 rakwb eng 660 DNB Liu, Wenwei verfasserin aut Computer simulation of random loose packings of micro-particles in presence of adhesion and friction 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier With a novel 3D discrete-element method specially developed with adhesive contact mechanics, random loose packings of uniform spherical micron-sized particles are fully investigated. The results show that large velocity, large size or weak adhesion can produce a relatively dense packing when other parameters are fixed, and these combined effects can be characterized by a dimensionless adhesion parameter ( Ad=\omega/2\rho_pU^2_0R). Four regimes are identified based on the value of Ad: RCP regime with Ad<\sim 0.01; RLP regime with \sim 0.01<Ad<1; adhesion regime with 1<Ad<20 and an asymptotic regime with Ad>20. Force distribution of these adhesive loose packings follows P(f)\sim f^\theta for small forces and P(f)\sim \exp^{-\beta f} for big forces, respectively, which shares a similar form with that in packings without adhesion but results in distinct exponents of \theta=0.879, \beta=0.839. A local mechanical equilibrium analysis shows that adhesion enhances both sliding and rolling resistance so that fewer neighbours are needed to satisfy the force and torque balance. Condensed Matter Soft Condensed Matter Li, Shuiqing oth Chen, Sheng oth Enthalten in Powder technology Amsterdam [u.a.] : Elsevier, 1967 302(2016), Seite 414-422 (DE-627)129504688 (DE-600)208997-X (DE-576)014908409 0032-5910 nnns volume:302 year:2016 pages:414-422 http://dx.doi.org/10.1016/j.powtec.2016.08.068 Volltext http://arxiv.org/abs/1511.02315 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 AR 302 2016 414-422 |
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Computer simulation of random loose packings of micro-particles in presence of adhesion and friction |
| abstract |
With a novel 3D discrete-element method specially developed with adhesive contact mechanics, random loose packings of uniform spherical micron-sized particles are fully investigated. The results show that large velocity, large size or weak adhesion can produce a relatively dense packing when other parameters are fixed, and these combined effects can be characterized by a dimensionless adhesion parameter ( Ad=\omega/2\rho_pU^2_0R). Four regimes are identified based on the value of Ad: RCP regime with Ad<\sim 0.01; RLP regime with \sim 0.01<Ad<1; adhesion regime with 1<Ad<20 and an asymptotic regime with Ad>20. Force distribution of these adhesive loose packings follows P(f)\sim f^\theta for small forces and P(f)\sim \exp^{-\beta f} for big forces, respectively, which shares a similar form with that in packings without adhesion but results in distinct exponents of \theta=0.879, \beta=0.839. A local mechanical equilibrium analysis shows that adhesion enhances both sliding and rolling resistance so that fewer neighbours are needed to satisfy the force and torque balance. |
| abstractGer |
With a novel 3D discrete-element method specially developed with adhesive contact mechanics, random loose packings of uniform spherical micron-sized particles are fully investigated. The results show that large velocity, large size or weak adhesion can produce a relatively dense packing when other parameters are fixed, and these combined effects can be characterized by a dimensionless adhesion parameter ( Ad=\omega/2\rho_pU^2_0R). Four regimes are identified based on the value of Ad: RCP regime with Ad<\sim 0.01; RLP regime with \sim 0.01<Ad<1; adhesion regime with 1<Ad<20 and an asymptotic regime with Ad>20. Force distribution of these adhesive loose packings follows P(f)\sim f^\theta for small forces and P(f)\sim \exp^{-\beta f} for big forces, respectively, which shares a similar form with that in packings without adhesion but results in distinct exponents of \theta=0.879, \beta=0.839. A local mechanical equilibrium analysis shows that adhesion enhances both sliding and rolling resistance so that fewer neighbours are needed to satisfy the force and torque balance. |
| abstract_unstemmed |
With a novel 3D discrete-element method specially developed with adhesive contact mechanics, random loose packings of uniform spherical micron-sized particles are fully investigated. The results show that large velocity, large size or weak adhesion can produce a relatively dense packing when other parameters are fixed, and these combined effects can be characterized by a dimensionless adhesion parameter ( Ad=\omega/2\rho_pU^2_0R). Four regimes are identified based on the value of Ad: RCP regime with Ad<\sim 0.01; RLP regime with \sim 0.01<Ad<1; adhesion regime with 1<Ad<20 and an asymptotic regime with Ad>20. Force distribution of these adhesive loose packings follows P(f)\sim f^\theta for small forces and P(f)\sim \exp^{-\beta f} for big forces, respectively, which shares a similar form with that in packings without adhesion but results in distinct exponents of \theta=0.879, \beta=0.839. A local mechanical equilibrium analysis shows that adhesion enhances both sliding and rolling resistance so that fewer neighbours are needed to satisfy the force and torque balance. |
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| title_short |
Computer simulation of random loose packings of micro-particles in presence of adhesion and friction |
| url |
http://dx.doi.org/10.1016/j.powtec.2016.08.068 http://arxiv.org/abs/1511.02315 |
| remote_bool |
false |
| author2 |
Li, Shuiqing Chen, Sheng |
| author2Str |
Li, Shuiqing Chen, Sheng |
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| doi_str |
10.1016/j.powtec.2016.08.068 |
| up_date |
2024-07-04T02:07:57.085Z |
| _version_ |
1803612457100378112 |
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7.3974915 |