Contact forces between viscoelastic ellipsoidal particles

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The normal (NFD) and tangential contact forces (TFD) between viscoelastic ellipsoidal particles are studied based on the contact mechanics and finite element method. It is found that the NFD and TFD force models previously formulated for spheres are valid for ellipsoidal particles and non-spherical particles of smooth surface, provided that some variables in the models are properly considered. The applicability of the NFD and TFD models are demonstrated in the collisions of two viscoelastic ellipsoids and shown to agree well with the results calculated by means of the finite element method. As part of the study, the applicability of the Linear-Spring-Dashpot (LSD) model which is widely used in the discrete modeling is also examined, and its limitation is identified.
Original languageEnglish
Pages (from-to)25 - 33
Number of pages9
JournalPowder Technology
Volume248
DOIs
Publication statusPublished - 2013
Externally publishedYes

Cite this

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title = "Contact forces between viscoelastic ellipsoidal particles",
abstract = "The normal (NFD) and tangential contact forces (TFD) between viscoelastic ellipsoidal particles are studied based on the contact mechanics and finite element method. It is found that the NFD and TFD force models previously formulated for spheres are valid for ellipsoidal particles and non-spherical particles of smooth surface, provided that some variables in the models are properly considered. The applicability of the NFD and TFD models are demonstrated in the collisions of two viscoelastic ellipsoids and shown to agree well with the results calculated by means of the finite element method. As part of the study, the applicability of the Linear-Spring-Dashpot (LSD) model which is widely used in the discrete modeling is also examined, and its limitation is identified.",
author = "Qijun Zheng and Zongyan Zhou and Aibing Yu",
year = "2013",
doi = "10.1016/j.powtec.2013.03.020",
language = "English",
volume = "248",
pages = "25 -- 33",
journal = "Powder Technology",
issn = "0032-5910",
publisher = "Elsevier",

}

Contact forces between viscoelastic ellipsoidal particles. / Zheng, Qijun; Zhou, Zongyan; Yu, Aibing.

In: Powder Technology, Vol. 248, 2013, p. 25 - 33.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Contact forces between viscoelastic ellipsoidal particles

AU - Zheng, Qijun

AU - Zhou, Zongyan

AU - Yu, Aibing

PY - 2013

Y1 - 2013

N2 - The normal (NFD) and tangential contact forces (TFD) between viscoelastic ellipsoidal particles are studied based on the contact mechanics and finite element method. It is found that the NFD and TFD force models previously formulated for spheres are valid for ellipsoidal particles and non-spherical particles of smooth surface, provided that some variables in the models are properly considered. The applicability of the NFD and TFD models are demonstrated in the collisions of two viscoelastic ellipsoids and shown to agree well with the results calculated by means of the finite element method. As part of the study, the applicability of the Linear-Spring-Dashpot (LSD) model which is widely used in the discrete modeling is also examined, and its limitation is identified.

AB - The normal (NFD) and tangential contact forces (TFD) between viscoelastic ellipsoidal particles are studied based on the contact mechanics and finite element method. It is found that the NFD and TFD force models previously formulated for spheres are valid for ellipsoidal particles and non-spherical particles of smooth surface, provided that some variables in the models are properly considered. The applicability of the NFD and TFD models are demonstrated in the collisions of two viscoelastic ellipsoids and shown to agree well with the results calculated by means of the finite element method. As part of the study, the applicability of the Linear-Spring-Dashpot (LSD) model which is widely used in the discrete modeling is also examined, and its limitation is identified.

UR - http://goo.gl/f3w7nm

U2 - 10.1016/j.powtec.2013.03.020

DO - 10.1016/j.powtec.2013.03.020

M3 - Article

VL - 248

SP - 25

EP - 33

JO - Powder Technology

JF - Powder Technology

SN - 0032-5910

ER -