A5008440597- Adhesion, Friction, and Surface Interactions
- Mechanical stress and fatigue analysis
- Force Microscopy Techniques and Applications
- Tribology and Wear Analysis
- Gear and Bearing Dynamics Analysis
- Tribology and Lubrication Engineering
- Brake Systems and Friction Analysis
- Lubricants and Their Additives
- Geotechnical and Geomechanical Engineering
- Metal and Thin Film Mechanics
- Engineering and Materials Science Studies
- Granular flow and fluidized beds
- Elasticity and Wave Propagation
- Dynamics and Control of Mechanical Systems
- Advanced machining processes and optimization
- Mechanical and Optical Resonators
- Engineering Technology and Methodologies
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Contact Mechanics and Variational Inequalities
- Mechanics and Biomechanics Studies
- Railway Engineering and Dynamics
- Surface Modification and Superhydrophobicity
- Advanced Surface Polishing Techniques
- Polymer Science and Applications
Samarkand State University named after Sharof Rashidov
2024-2025
National Research Tomsk State University
2015-2024
Technische Universität Berlin
2015-2024
Plekhanov Russian University of Economics
2024
Changchun University of Science and Technology
2021-2022
Yokohama National University
2022
Riga Technical University
2022
Institute of Strength Physics and Materials Science
1992-2021
Moscow Institute of Physics and Technology
2021
Burdenko Neurosurgery Institute
2020
Abstract The paper is devoted to the contributions of Coulomb and Amontons physics friction from viewpoint current discussions attempts formulate generalized laws friction.
Using the boundary element method, we calculate normal interfacial stiffness and constriction resistance of two elastic bodies with randomly rough surfaces varying fractal dimensions. The contact as a function applied force can be approximated by power law, an exponent from 0.51 to 0.77 for dimensions 2 3.
The strength of an adhesive contact between two bodies can strongly depend on the macroscopic and microscopic shape surfaces. In past, influence roughness has been investigated thoroughly. However, even in presence perfectly smooth surfaces, geometry come into play form contacting region. Here we present numerical experimental results for contacts rigid punches with flat but oddly shaped face a soft, counterpart. When it is carefully pulled off, find that contrast to circular shapes,...
Abstract One of the most popular models widely used in nanotribology as basis for many investigations frictional mechanisms on atomic scale is so‐called Tomlinson model consisting a point mass driven over periodic potential. The name “Tomlinson model” is, however, historically incorrect: paper by from year 1929 which often cited this context did not, fact, contain known and suggests, instead, an adhesive contribution to friction. In reality, it was Ludwig Prandtl who suggested 1928 describe...
Abstract This paper is devoted to an analytical, numerical, and experimental analysis of adhesive contacts subjected tangential motion. In particular, it addresses the phenomenon instable, jerky movement boundary contact zone its dependence on surface roughness. We argue that “adhesion instabilities” with instable movements cause energy dissipation similarly elastic instabilities mechanism. leads different effective works adhesion when area expands contracts. effect interpreted in terms...
It was shown earlier that some classes of three-dimensional contact problems can be mapped onto one-dimensional systems without loss essential macroscopic information, thus allowing for immense acceleration numerical simulations. The validity this method reduction dimensionality has been strictly proven any axisymmetric bodies, both with and adhesion. In [T. Geike V. L. Popov, Phys. Rev. E 76, 036710 (2007)], it is valid ``with empirical accuracy'' the simulation contacts between randomly...
The quasi-static regime of friction between a rigid steel indenter and soft elastomer with high adhesion is studied experimentally. An analysis the formally calculated dependencies coefficient on an external load (normal force) shows that monotonically decreases increase in load, following power law relationship. Over entire range contact loads, mode realized which constant shear stresses are maintained tangential contact, corresponds to “adhesive” mode. In this mode, Amonton’s inapplicable,...
Quasi-static sliding contact of an axisymmetric convex rigid solid with adhesive incompressible polymer layer bonded to a base is considered. As generalizations the state-of-the-art theories interplay between adhesion and friction, JKR (Johnson–Kendall–Roberts)-type so-called peeling models are developed applied for analyzing set experimental data spherical indenters various radii, which available in literature. A special focus placed on acquisition model parameters from case nominal point...
Abstract Computer simulations have been an integral part of the technical development process for a long time now. Industrial tribology is one last fields in which computer have, until now, played no significant role. This primarily due to fact that investigating tribological phenomena requires considering all spatial scales from macroscopic shape contact system down micro-scales. In present paper, we give overview previous work on so-called method reduction dimensionality (MRD), our...
We investigate the contact stiffness of an elastic half-space and a rigid indenter with randomly rough surface having power spectrum , where q is wave vector. The range studied covering wide roughness types from white noise to smooth single asperities. At low forces, in all cases law function normal force exponent α. For H > 2, simple Hertzian behavior observed . In 0 < Pohrt-Popov valid ( ). 0, constant approximately 0.9 observed, while exact value depends on number modes used produce...