Coarse-grained model for spring friction study of micron-scale iron by smoothed particle hydrodynamics

The paper presents the construction of a coarse-grained model to investigate dry sliding friction of the body-centered-cubic Fe micron-scale system by smoothed particle hydrodynamics simulations and examines influences of the spring force on the characters of friction. The atoms Fe system is coarse-...

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Bibliographic Details
Published in:Europhysics letters 2018-04, Vol.122 (2), p.26004
Main Authors: Van Sang, Le, Yano, Akihiko, Fujii, Shuji, Sugimura, Natsuko, Washizu, Hitoshi
Format: Article
Language:English
Subjects:
02.70.-c
46.55.+d
62.20.Qp
Anisotropy
Coefficient of friction
Iron
Isotropy
Motion perception
Sliding friction
Smooth particle hydrodynamics
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Summary:The paper presents the construction of a coarse-grained model to investigate dry sliding friction of the body-centered-cubic Fe micron-scale system by smoothed particle hydrodynamics simulations and examines influences of the spring force on the characters of friction. The atoms Fe system is coarse-grained into the two different simple-cubic particle systems, one of 432000 and the other of 16000 particles. From the detection of stick-slip motion, friction coefficient, dependence of friction coefficient on isotropy or anisotropy of the spring force and externally applied normal load, we find that the coarse-grained model is a reasonable modeling process for the study of the friction of the Fe system, and the anisotropic behavior presents better friction of the system than the isotropic one.
ISSN:0295-5075
1286-4854
1286-4854
DOI:10.1209/0295-5075/122/26004