NDLI: Adhesion force during microcontact interaction between cylindrical-segment-on-flat and flat bodies

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Adhesion force during microcontact interaction between cylindrical-segment-on-flat and flat bodies

International Journal of Mechanics and Materials in Design : Volume 4, Issue 2, June 2008

International Journal of Mechanics and Materials in Design : Volume 4, Issue 1, March 2008

International Journal of Mechanics and Materials in Design : Volume 3

International Journal of Mechanics and Materials in Design : Volume 2

International Journal of Mechanics and Materials in Design : Volume 1

Adhesion force during microcontact interaction between cylindrical-segment-on-flat and flat bodies

Content Provider	Springer Nature Link
Author	Sabelkin, V. Mall, S.
Copyright Year	2008
Abstract	Adhesion force including its both attractive and repulsive components during microcontact interaction between cylindrical-segment-on-flat and flat bodies is formulated using the volumetric integration of interactions among the atoms. Thenceforth the corresponding formulation for cylinder-on-flat and flat-on-flat is developed and compared with the available counterpart attractive force and they are in excellent agreement with each other. However, the present study provides also the repulsive component of adhesion force for these contact geometries. The formulation is also extended for a cylindrical segment with two radii to model the elastic–plastic deformation. Several phenomena related to adhesion during microcontact are then studied leading to the following salient observations. The adhesion force during microcontact interaction can be of the same order as the applied force, and thus causes the plastic deformation. The attractive force from the cylindrical segment is the major component of adhesion force for its radius/height ratios smaller than 1000 while that from the bulk body is the major for the larger ratios, i.e. when the cylindrical segment is similar to an asperity. There is considerable difference in the attractive force between a cylinder and a cylindrical-segment-on-flat for the smaller values of radius. The difference between attractive and total adhesion force is significant (∼60%) when adhesion force is the maximum, but it rapidly decreases with increasing separation distance and can be neglected at the separation distance larger than the twice of inter-atomic equilibrium distance. The equilibrium separation distance is about 60% of the inter-atomic equilibrium distance and adhesion force is maximum at about 80% of the inter-atomic equilibrium separation distance for both deformed and undeformed configurations. The adhesion force also increased with the deformation of cylindrical segment.
Starting Page	333
Ending Page	357
Page Count	25
File Format	PDF
ISSN	15691713
Journal	International Journal of Mechanics and Materials in Design
Volume Number	4
Issue Number	3
e-ISSN	15738841
Language	English
Publisher	Springer Netherlands
Publisher Date	2008-05-15
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Adhesion force Attractive and repulsive components Cylinder-segment-on-flat microcontact Elastic–plastic deformation Potential interaction Engineering Design Characterization and Evaluation of Materials Mechanics Continuum Mechanics and Mechanics of Materials
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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