Contact Force Distribution and Anisotropic Analysis in Dense Granular Flow Between the Shearing Parallel Plates

MENG Fan-jing; LIU kun; WANG wei

doi:10.3879/j.issn.1000-0887.2013.07.006

Volume 34 Issue 7

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MENG Fan-jing, LIU kun, WANG wei. Contact Force Distribution and Anisotropic Analysis in Dense Granular Flow Between the Shearing Parallel Plates[J]. Applied Mathematics and Mechanics, 2013, 34(7): 714-723. doi: 10.3879/j.issn.1000-0887.2013.07.006

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Contact Force Distribution and Anisotropic Analysis in Dense Granular Flow Between the Shearing Parallel Plates

doi: 10.3879/j.issn.1000-0887.2013.07.006

Institute of Tribology, Hefei University of Technology, Hefei 230009, P.R.China

Received Date: 2013-05-14
Rev Recd Date: 2013-05-23
Publish Date: 2013-07-15

Abstract

Abstract

The probability distribution of contact force, anisotropy of contact force network, the friction influence on macro rheological and micro force chain distribution in dense granular flow between shearing parallel plates were discussed. A discrete element numerical analysis model was established for study. The numerical analysis results show that the probability distribution of contact force confoms to power law; the contact angle comply with exponent law and the average normal contact force oscillates up and down randomly with the average contact angle chage; the magnitude of wave velocity is a key evaluation index for macro rheology smoothness, and in micro force chain aspect, super force chain number increases notably when the granular flow is not smooth between the shearing parallel plates.
- dense granular flow,
- discrete element,
- contact force

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References(14)

References

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