An Approximate JKR Model of Elliptical Contact Between Thin Incompressible Elastic Coatings Covering Rigid Cylinders

Argatov, Ivan; Mishuris, Gennady; Popov, Valentin L.

doi:10.1007/s11249-016-0746-z

Cited by 2 publications

(3 citation statements)

References 22 publications

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“…Therefore, the Hertz model was not considered [47]. The JKR model under high adhesion experimental conditions is not suitable for characterizing Young's modulus of dispersed gel [48]. Therefore, Young's modulus of the micro-nanoscale dispersed gel was obtained by fitting the calculation of the DMT model [49].…”

Section: Characterization Of Young's Modulus Of Dispersed Gelmentioning

confidence: 99%

Plugging Performance of a New Sulfonated Tannin Gel System Applied in Tight Oil Reservoir

Wang

Bai

et al. 2022

Geofluids

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In this study, based on the high-temperature characteristics of Western China tight oil reservoirs, a phenolic-larch tannin, temperature-resistant, plugging agent was synthesized by changing the mass fractions of larch tannin, double cross-linking agent, and accelerator. Young’s modulus of the dispersed gel was directly measured by an atomic force microscope, and the macroscopic plugging performance was evaluated by a physical simulation experiment of the artificially fractured natural core from Western China tight oil oilfield, thereby establishing a mapping relationship between the two. Research indicates that the formula of the high-temperature-resistant tannin system optimized by the experiment is 3.0 % sulfonated tannin + 3.0 % formaldehyde cross ‐ linking agent + 1.0 % phenol cross ‐ linking agent + 0.05 % MnS O 4 accelerator ; the mechanical strength of the tannin gel and its plugging performance have a linear relationship. When Young’s modulus rises from 18.74 to 63.89 KPa, the plugging rate rises from 94.11% to 97.44%.

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Section: Characterization Of Young's Modulus Of Dispersed Gelmentioning

confidence: 99%

Plugging Performance of a New Sulfonated Tannin Gel System Applied in Tight Oil Reservoir

Wang

Bai

et al. 2022

Geofluids

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“…On the basis of these classic theories, many scholars have carried out extended research on specific contact problems. Argatov et al 6 studied the specific problems of the incompressible thin layer covering a rigid cylinder and proposed an improved JKR theory of approximate contact calculation theory. Fan Jin et al 7 studied the adhesion behavior between elastic cylinders based on the double Hertz model.…”

Section: Introductionmentioning

confidence: 99%

“…Argatov et al. 6 studied the specific problems of the incompressible thin layer covering a rigid cylinder and proposed an improved JKR theory of approximate contact calculation theory. Fan Jin et al.…”

Section: Introductionmentioning

confidence: 99%

Contact characteristics of steel-rubber rollers based on modified contact theory considering viscoelasticity

Chu

Zhang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper mainly studied the contact characteristics of steel-rubber rollers. First, according to the dynamic mechanical experimental data of rubber, the hyperelastic-viscoelastic composite constitutive model was constructed to accurately describe the properties of rubber. Then, for the contact problem of steel-rubber rollers, the elastic modulus of rubber presents an instantaneous change due to the influence of rubber's viscoelasticity, so the Hertz contact theory was modified through the instantaneous elastic modulus. Next, a dimensionless parameter [Formula: see text] was constructed to judge the viscoelastic influence degree of rubber. Finally, based on modified contact theory and the dimensionless parameter [Formula: see text], the influence of compressive force and rolling speed on the contact characteristics of steel-rubber rollers was analyzed. The research in this paper is helpful to the analysis of dynamic contact problem of rollers structure and the development of contact theory.

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An Approximate JKR Model of Elliptical Contact Between Thin Incompressible Elastic Coatings Covering Rigid Cylinders

Cited by 2 publications

References 22 publications

Plugging Performance of a New Sulfonated Tannin Gel System Applied in Tight Oil Reservoir

Plugging Performance of a New Sulfonated Tannin Gel System Applied in Tight Oil Reservoir

Contact characteristics of steel-rubber rollers based on modified contact theory considering viscoelasticity

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