Simulation of real contact in tribology

Мышкин, Н. К.; Petrokovets, M.I.; Чижик, С. А.

doi:10.1016/s0301-679x(98)00010-3

Cited by 49 publications

(24 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These results are combined with a surface conjunction temperature theory [64]-commonly used for computing the mean surface temperature and the flash temperature values-in order to compute the real contact area in function of both the tribological parameters and the heat transfer regime involved during the tests. Validation of these results is carried out using both (i) the classical Greenwood Williamson model [3], [18] and [31] and (ii) an ABAQUS finite element model built from the real AFM maps [65] in order to take into account the presence of third body within the contact.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the real contact area in three-body dry friction by micro-thermal analysis

Stempflé

Pantalé

Djilali

et al. 2010

Tribology International

View full text Add to dashboard Cite

International audienceMany tribological properties and wear mechanisms occurring on the micro-and nanoscale are strongly controlled by the so-called real contact area (Ar) which is a small fraction of the nominal or apparent contact area (Aa). The determination of Ar is often based on either (i) a geometrical approach describing the real geometry of contacting surfaces or (ii) a mechanical approach involving contact mechanics and physical-mechanical properties. In addition some experimental methods have also been attempted but they generally do not take into account the presence of third body at the interface--i.e. the wear debris trapped within the contact. In this paper we propose an experimental approach to estimate the dynamic real contact area from the operating parameters (Fn, v, T) and the tribological responses (μ, Ft) in presence of third body. A scanning thermal microscope (SThM) is used for determining both the thermal conductivity of the third body and the relationship between the contact temperature and the thermal power really dissipated at the micro-asperity level. These results are combined with a thermal model of the macro-tribocontact for computing the real contact area and the real contact pressure. Validation of these results is carried out using a classical Greenwood Williamson model and finite element models built from the real AFM maps

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of the real contact area in three-body dry friction by micro-thermal analysis

Stempflé

Pantalé

Djilali

et al. 2010

Tribology International

View full text Add to dashboard Cite

show abstract

“…Nevertheless, galling can successfully be hindered also by modification of the tool surface [6,7]. One way of modifying the surface, already effectively used in the forming industry to improve wear resistance of the tools, is thermo-chemical surface treatment, i.e.…”

Section: Introductionmentioning

confidence: 99%

Surface modification to improve friction and galling properties of forming tools

Podgornik

Hogmark

2006

Journal of Materials Processing Technology

114

View full text Add to dashboard Cite

“…The total area of these spots is known as the RCA. When estimating the real contact in the case of plastics during friction, the temperature and sliding velocity should be taken into account …”

Section: Theoretical Sectionmentioning

confidence: 99%

“…When estimating the real contact in the case of plastics during friction, the temperature and sliding velocity should be taken into account. [40][41][42] The solution desired, i.e., the relationship between the total load w, circular contact radius a, and approach of the sphere d is sought as a superposition of the solutions for the problems considering mechanical loading and heating. It is possible to find the total area of all contact spots (RCA) and the total load following the Greenwood-Williamson approach.…”

Section: Contact Of Rough Polymer Surfacesmentioning

confidence: 99%

Contact mechanics and tribology of polymer composites

Мышкин¹,

Kovalev

Spaltman

et al. 2013

J of Applied Polymer Sci

View full text Add to dashboard Cite

We review contact mechanics with emphasis on the rheological (time dependent) properties of polymers and their relations to surface roughness, material properties, and friction as well as wear behavior of rubbing polymer surfaces. The main concept of polymer mechanics related to tribology consists of three basic elements involved in friction: deformation resulting in the real area of contact of rough surfaces, contact adhesion, and shear and rupture of materials in the contact during the sliding friction. The results of classical work are included, which addresses the real contact area calculation and the description of adhesion interaction between rough surfaces. A brief review of experimental investigations concerning the surface characterization by means of bearing curves, the intermolecular force interaction using the adhesion parameter, the effect of temperature on the real contact area, the formation of transferred polymer film during friction, and tribological behavior of ultrathin polymer layers are presented and their implications discussed. V C 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2014, 131, 39870.

show abstract

Simulation of real contact in tribology

Cited by 49 publications

References 37 publications

Evaluation of the real contact area in three-body dry friction by micro-thermal analysis

Evaluation of the real contact area in three-body dry friction by micro-thermal analysis

Surface modification to improve friction and galling properties of forming tools

Contact mechanics and tribology of polymer composites

Contact Info

Product

Resources

About