Displacement formulation of the friction conditions on the contact surface

Rogovoy, A.A.; Ivanov, B. N.

doi:10.1016/s0045-7949(96)00202-7

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…In functions (5-7) the following designations are used: q is friction coefficient; 1 2 , τ τ are reference character of coordinate axes lying in the plane that is tangent to the surface of contact; n u is displacements normal to the corresponding contact boundary; 5) and ( 6) have to reflect the elastoplastic character of deformation of a layer's material (see for example [14]), however in the work the antifriction layer with relatively low friction coefficient is considered, therefore it is supposed that sliding of contact surfaces begins at values of tangent stresses much smaller than the plastic limit on shear. This assumption is confirmed by direct check of values of the contact tangent stresses received from the numerical solution of the problem.…”

Section: Materials Engineering and Technologies For Production And Pr...mentioning

confidence: 99%

“…In [13] contact problems for bodies with coverings and layers within the theory of elasticity and viscoelasticity are investigated. Approaches to the solution of elastoplastic contact problems are stated in [14]. Taking into account essential nonlinearity of contact problems the numerical methods of their solution with use of application-oriented software packages are developed.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Elastoplastic Behavior Model of Antifriction Polymers

Kamenskikh

Bartolomey

2018

SSP

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The analysis of properties of the antifriction materials suitable for use as materials of a surface of sliding of contact nodes was made and the elastoplastic model for the description of their behavior has been chosen in the work. The general mathematical statement of the problem of friction contact interaction of two elastic bodies through an elastoplastic antifriction layer taking into account all types of a contact state has been made. Check of mathematical statement within numerical realization of an experiment on uniaxial compression of a sample by press plates taking into account friction on the interfaced surfaces has been executed. Assessment of convergence of the numerical solution of the task of contact parameters depending on a number of nodal unknowns has been made, optimum finite element decomposition of the model has been chosen. It has been established that the numerical solution gives a good quantitative capability to results of a natural experiment. It has been established that all paths of deformation have small curvature in all considered points of the polymeric cylindrical sample.

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Section: Materials Engineering and Technologies For Production And Pr...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of Elastoplastic Behavior Model of Antifriction Polymers

Kamenskikh

Bartolomey

2018

SSP

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“…In [10], contact problems of bodies with coatings and layers are investigated within the framework of the theory of elasticity and viscoelasticity. Approaches to the solution of elastoplastic contact problems are described in [15][16][17][18][19]. Taking into account the significant nonlinearity of contact problems, effective numerical methods for solving them are developed.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of antifriсtion polymers behaviour under deformation of spherical bearing

Kamenskikh¹,

Bartolomey²

2018

Proceedings of the International Conference "Actual Issues of Mechanical Engineering" (AIME 2018)

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The stress-strain state of a spherical contact unit with a layer of antifriction polymer material is investigated within the framework of the problem of elastoplastic contact interaction with the account of friction on the contact surface. The statement of the problem of contact mechanical interaction of two elastic bodies through an elastoplastic layer of antifriction polymer material is made. The contact characteristics at different finite element meshes are investigated, optimal mesh parameters for numerical modeling are chosen and convergence of numerical solution of the problem is established by the example of axisymmetric problem. As a result, numerical studies have established the influence of the geometry of the structure and the material of the antifriction layer on the distribution of sites with different types of interaction in the contact area (adhesion, sliding and exfoliation), the value and character of the contact pressure and contact tangent stress. The analysis of the work of the three antifriction materials (fluoropolymer, antifriction composite material based on fluoropolymer with spherical bronze inclusions and molybdenum disulfide, modified fluoropolymer) for two variants of boundary conditions is made, the influence on the character of the contact interaction is established.

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“…In addition, friction between contacting bodies can create varying regions of stick and slip. Hence, the situation is highly nonlinear 17 . Thus, most solutions were obtained both incrementally and iteratively by trial and error 18 …”

Section: Introductionmentioning

confidence: 99%

“…Hence, the situation is highly nonlinear. 17 Thus, most solutions were obtained both incrementally and iteratively by trial and error. 18 Due to the practical importance of frictional contact problems, a large number of algorithms with commercial finite element codes were presented for solving different contact problems with Coulomb friction.…”

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confidence: 99%

Finite element simulation of the mechanics of flat contact pad fretting fatigue tests

Hammouda

El-Batanony

Sallam

2003

Fatigue Fract Eng Mat Struct

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An understanding into the macro kinetic and kinematic behaviour of fretted surfaces is provided. Making use of a modified version of a previously developed in‐house two‐dimensional elastic–plastic finite element analysis numerically simulates flat contact pad fretting fatigue tests. Basic macro mechanics concepts are adopted to idealise two bodies with rough contact surfaces and loaded at two different sites with arbitrary axial loading profiles. A time scale factor is devised to recognise the earliest candidate out of the events possibly accommodated at each loading increment. The present analysis utilises a relevant experimental set up developed in the Structural Integrity Research Institute of the University of Sheffield as an application. Computational results accurate to within 1.2% and corresponding to one contact pad span and six constant normal loads acting individually with four amplitudes of two sinusoidal axial load cycles are presented. The present computations include (1) the development of the global and local normal and tangential reactions and relative sliding displacement acting along the fretting surfaces and (2) contact pad deformation, generated stress fields and plasticity development within the neighbouring region of the fretted area.

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Displacement formulation of the friction conditions on the contact surface

Cited by 8 publications

References 8 publications

Analysis of Elastoplastic Behavior Model of Antifriction Polymers

Analysis of Elastoplastic Behavior Model of Antifriction Polymers

Comparative analysis of antifriсtion polymers behaviour under deformation of spherical bearing

Finite element simulation of the mechanics of flat contact pad fretting fatigue tests

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