Adherence friction and contact geometry of a rigid cylinder rolling on the flat and smooth surface of an elastic body (NR and SBR)

Barquins M., . Adherence friction and contact geometry of a rigid cylinder rolling on the flat and smooth surface of an elastic body (NR and SBR). pp. 199-210. ISSN 0127-7065

Static equilibrium conditions the contact geometry and the rolling friction force of a hard cylinder in adhesive contact with an elastic body are studied using classic thermodynamics the concepts of fracture mechanics such as the stress intensity factor or the strain energy release rate and the plane elasticity theory. It is shown that the rolling resistance the contact geometry and the pressure are linked to the three interfacial quantities: Dupres energy of adhesion and the dissipative forces resisting the rupture and the formation of the contact. Experiments carried out with polyrnethyl-methacrylate (PMMA) and stainless steel cylinders rolling on smooth NR and SBR surfaces confirm all the theoretical predictions in particular one can observe that the experimental value of the contact length which increases with the rolling speed remains perfectly between the theoretical values deduced from the measured rolling resistance and the extreme values of the dissipative force resisting the formation of the contact. Moreover it is shown that due to the intervention of molecular attraction forces a light rigid cylinder rolls under an inclined NR surface and it is found that the rolling speed is the same when the cylinder rolls on (he same inclined surface. It has been verified that if a flat rubber substrate with an adequate length is rotated at constant angular velocity a light stainless steel cylinder rolls alternately on and under the rubber surface without dropping.

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Abstract

Static equilibrium conditions the contact geometry and the rolling friction force of a hard cylinder in adhesive contact with an elastic body are studied using classic thermodynamics the concepts of fracture mechanics such as the stress intensity factor or the strain energy release rate and the plane elasticity theory. It is shown that the rolling resistance the contact geometry and the pressure are linked to the three interfacial quantities: Dupres energy of adhesion and the dissipative forces resisting the rupture and the formation of the contact. Experiments carried out with polyrnethyl-methacrylate (PMMA) and stainless steel cylinders rolling on smooth NR and SBR surfaces confirm all the theoretical predictions in particular one can observe that the experimental value of the contact length which increases with the rolling speed remains perfectly between the theoretical values deduced from the measured rolling resistance and the extreme values of the dissipative force resisting the formation of the contact. Moreover it is shown that due to the intervention of molecular attraction forces a light rigid cylinder rolls under an inclined NR surface and it is found that the rolling speed is the same when the cylinder rolls on (he same inclined surface. It has been verified that if a flat rubber substrate with an adequate length is rotated at constant angular velocity a light stainless steel cylinder rolls alternately on and under the rubber surface without dropping.

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Item Type:	Article
AGROVOC Term:	Rubber
AGROVOC Term:	Natural rubber
AGROVOC Term:	Cylinders
AGROVOC Term:	Elasticity
AGROVOC Term:	Friction
AGROVOC Term:	Rolling
AGROVOC Term:	Surface area
AGROVOC Term:	Pressure
AGROVOC Term:	Rotational speed
AGROVOC Term:	Chemical resistance
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/23506

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