Elastic–plastic spherical contact under combined normal and tangential loading in full stick

Brizmer, Victor; Kligerman, Y.; Etsion, I.

doi:10.1007/s11249-006-9156-y

Cited by 176 publications

(133 citation statements)

References 26 publications

(19 reference statements)

Supporting

Mentioning

125

Contrasting

Unclassified

Order By: Relevance

“…[16][17][18]. Chang et al in 1988 [16] calculated the maximum tangential load which can be supported by a single spherical asperity before plastic yield first occurs either below or at the asperity contact interface.…”

mentioning

confidence: 99%

The Effect of Dwell Time on the Static Friction in Creeping Elastic–Plastic Polymer Spherical Contact

2009

Self Cite

View full text Add to dashboard Cite

A theoretical model is developed to study the effect of dwell time on the junction growth and static friction of a creeping polymer sphere in contact with a rigid flat under full stick contact condition. A rapid normal loading into the elastic-plastic contact regime is followed by a rest period during which creep takes place causing contact area growth, and stress relaxation that can completely eliminate the plastic zone in the sphere. At the end of this rest time, an increasing tangential loading is applied to the flat till sliding inception occurs. During this loading step, further increase of the contact area and reappearing of a plastic zone in the sphere take place. An increase in static friction resulting from the dwell time during the creep stage is clearly demonstrated and explained.

show abstract

mentioning

confidence: 99%

The Effect of Dwell Time on the Static Friction in Creeping Elastic–Plastic Polymer Spherical Contact

2009

Self Cite

View full text Add to dashboard Cite

show abstract

“…The discontinuous variation of the local friction coefficient across the contact is not observed in local continuum static friction studies (see e.g. [15]), where the contact area is continuous.…”

Section: Local Friction Coefficientmentioning

confidence: 90%

“…[14][15][16]). However, the friction force there increases sub-linearly with the normal force, which contrasts our results.…”

Section: Friction Force and The Friction Coefficientmentioning

confidence: 99%

“…What is clear is that when interfacial cohesion is strong, friction is dependent on the material plastic properties, since the contact pressure is usually large enough for the asperities of the surface to deform plastically [11][12][13]. Several numerical models have been developed to analyse the effect of plastic deformation on friction of metallic surfaces [14][15][16]. These models consider a transition from elastic to full plastic deformation of the bodies in contact.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Static friction of sinusoidal surfaces: a discrete dislocation plasticity analysis

Siang

Nicola

2017

Philosophical Magazine

View full text Add to dashboard Cite

Discrete dislocation plasticity simulations are carried out to investigate the static frictional response of sinusoidal asperities with (sub)-microscale wavelength. The surfaces are first flattened and then sheared by a perfectly adhesive platen. Both bodies are explicitly modelled, and the external loading is applied on the top surface of the platen. Plastic deformation by dislocation glide is the only dissipation mechanism active. The tangential force obtained at the contact when displacing the platen horizontally first increases with applied displacement, then reaches a constant value. This constant is here taken to be the friction force. In agreement with several experiments and continuum simulation studies, the friction coefficient is found to decrease with the applied normal load. However, at odds with continuum simulations, the friction force is also found to decrease with the normal load. The decrease is caused by an increased availability of dislocations to initiate and sustain plastic flow during shearing. Again in contrast to continuum studies, the friction coefficient is found to vary stochastically across the contact surface, and to reach locally values up to several times the average friction coefficient. Moreover, the friction force and the friction coefficient are found to be size-dependent. ARTICLE HISTORY

show abstract

“…With FEM method, variation of stress and strain has been studied with the tangential force and normal force [16][17]; with semi analytic method, elastoplastic contact analysis has been developed for three dimensional model and get the distribution of contact pressure, residual stress, etc. [18].…”

Section: Introductionmentioning

confidence: 99%

Mathematical Description of Deformation of Micro Convex Body on Rough Surface

Zhong¹

2015

IJSIP

View full text Add to dashboard Cite

show abstract

Elastic–plastic spherical contact under combined normal and tangential loading in full stick

Cited by 176 publications

References 26 publications

The Effect of Dwell Time on the Static Friction in Creeping Elastic–Plastic Polymer Spherical Contact

The Effect of Dwell Time on the Static Friction in Creeping Elastic–Plastic Polymer Spherical Contact

Static friction of sinusoidal surfaces: a discrete dislocation plasticity analysis

Mathematical Description of Deformation of Micro Convex Body on Rough Surface

Contact Info

Product

Resources

About