Sensitivity analysis of the influence of particle dynamic friction, rolling resistance and volume/shear work ratio on wear loss and friction force using DEM model of dry sand rubber wheel test

The discrete element method (DEM) can improve wear model owing to its complexity. In this study, the laboratory results of the dry sand rubber wheel test (DSRWT) wear loss and friction force results at various loads (17, 35, 57, 78 and 100 N) were compared with those modelled by the DEM. The sensiti...

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Bibliographic Details
Published in:Tribology international 2021-04, Vol.156, p.106853, Article 106853
Main Authors: Katinas, Egidijus, Chotěborský, Rostislav, Linda, Miloslav, Kuře, Jiři
Format: Article
Language:English
Subjects:
Contact stresses
Discrete element method
Dry sand rubber wheel test
Dynamic friction
Friction
Friction resistance
Parameter sensitivity
Regression analysis
Rolling resistance
Rubber
Sand
Sensitivity analysis
Shear strength
Statistical analysis
Volume/shear work ratio
Wear
Wear model
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Summary:The discrete element method (DEM) can improve wear model owing to its complexity. In this study, the laboratory results of the dry sand rubber wheel test (DSRWT) wear loss and friction force results at various loads (17, 35, 57, 78 and 100 N) were compared with those modelled by the DEM. The sensitivity of particle parameters (dynamic friction of rubber-sand, dynamic friction of sand-steel, and rolling resistance of the particle) was evaluated by variance, regression, and Pareto statistical analyses. The wheel and sample contact stress analyses confirmed that employing the progressive volume/shear work ratio parameter is required during the simulation; this parameter increases/decreases the wear intensity of the tested material during the simulation. [Display omitted] •The dry sand rubber wheel test is modelled by the discrete element method.•Volume/shear work ratio parameter influences modelled wear loss and friction force.•Dynamic friction and rolling resistance are determined with respect of experiment results.•Volume/shear work ratio parameter is inversely proportional for stress of sample surface.
ISSN:0301-679X
1879-2464
DOI:10.1016/j.triboint.2021.106853