Since 1963
ARTICLE
Numerical investigation of impact of non-spherical particles with spin and multi-point contact
1
Department of Engineering Mechanics, Henan University of Science and Technology, Luoyang, China
2
School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an, China
Submission date: 2020-10-12
Final revision date: 2021-04-22
Acceptance date: 2021-06-09
Online publication date: 2021-06-14
Publication date: 2021-07-25
Corresponding author
Kuahai Yu
Department of Engineering Mechanics, Henan University of Science and Technology, Luoyang, China
Department of Engineering Mechanics, Henan University of Science and Technology, Luoyang, China
Journal of Theoretical and Applied Mechanics 2021;59(3):431-441
KEYWORDS
non-spherical particlessphere element combination methodmulti-point contactcoefficient of restitutioncollision duration
TOPICS
ABSTRACT
This paper investigates the dynamic behavior of elastoplastic collision of several non-sphere
particles through the spherical element combination method. The particles are cylinder, triangle
and square particles, which are combined by 2, 3 and 4 spheres using the spherical
element method, respectively. Results reveal that the collision of the evaluated irregular particles
exhibits three contact styles, which are single point contact, instantaneous multi-point
contact and sequential multi-point contact. Normal contact torque and frictional torque act
together on the spin of a particle and causes sequential multi-point contact under certain
conditions for square particles.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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