Modelling of leakage on metal-to-metal seals
TLDR
In this paper, a model composed of state-of-the-art models for the contact mechanics between rough metal surfaces and for the liquid flow through the rough aperture in-between them was developed.About:
This article is published in Tribology International.The article was published on 2016-02-01 and is currently open access. It has received 74 citations till now. The article focuses on the topics: Contact area & Waviness.read more
Citations
More filters
Journal ArticleDOI
On the accurate computation of the true contact-area in mechanical contact of random rough surfaces
TL;DR: A corrective function to compensate errors in contact area computations coming from mesh discretization is introduced, and a topology preserving smoothing technique is used to adjust the morphology of contact clusters obtained with a coarse grid.
Peer ReviewDOI
Numerical micro-texture optimization for lubricated contacts—A critical discussion
Journal ArticleDOI
Symmetry properties of macroscopic transport coefficients in porous media
TL;DR: In this paper, the symmetry properties of tensorial effective transport coefficients characteristic of many transport phenomena in porous systems at the macroscopic scale were investigated, and they were derived from the solution of closure problems that allow passing the information from lower to upper scale.
Journal ArticleDOI
Leakage of Metallic Seals: Role of Plastic Deformations
TL;DR: In this paper, the influence of plastic deformations on the leakage of metallic seals was studied and the authors used the Bruggeman effective medium theory to estimate the leak rate of the plastically deformed interface.
Journal ArticleDOI
Mechanical Characterization and Single Asperity Scratch Behaviour of Dry Zinc and Manganese Phosphate Coatings
Dennis Ernens,Dennis Ernens,M.B. de Rooij,H.R. Pasaribu,E.J. van Riet,W M. van Haaften,Dirk J. Schipper +6 more
TL;DR: In this paper, the mechanical properties of zinc and manganese phosphate coatings before and after running in were characterized with nano-indentation and scratch tests, showing that the smooth and brittle glaze layer has a higher hardness compared to the as received coating and its properties can be satisfactorily described by models normally used for hard coating on a soft substrate.
References
More filters
Journal ArticleDOI
Theory of the leak-rate of seals
Bo N. J. Persson,C. Yang +1 more
TL;DR: In this article, the authors present a theory of the leak-rate of seals, which is based on percolation theory and a recently developed contact mechanics theory, and show that when two elastic solids with randomly rough surfaces are squeezed together, as a function of increasing magnification or decreasing squeezing pressure, a non-contact channel will percolate when the relative projected contact area, A/A0, is of the order 0.4, in accordance with percoation theory.
Journal ArticleDOI
A mixed lubrication model incorporating measured surface topography. Part 1: Theory of flow factors:
TL;DR: A mixed lubrication model that permits real 3D surface topography as input is developed in this paper, and the theory of computing flow factors within the model is presented, and with a follow-up paper.
Journal ArticleDOI
Theory of the leak-rate of seals
Bo N. J. Persson,C. Yang +1 more
TL;DR: In this article, the authors present a theory of the leak-rate of seals, which is based on percolation theory and a recently developed contact mechanics theory, and show that when two elastic solids with randomly rough surfaces are squeezed together, as a function of increasing magnification or decreasing squeezing pressure, a non-contact channel will percolate when the projected contact area, A/A_0, is of order 0.4, in accor dance with percolations theory.
Journal ArticleDOI
A mixed lubrication model incorporating measured surface topography. Part 2: Roughness treatment, model validation, and simulation
TL;DR: In this article, a mixed lubrication flow factor model that permits real 3D surface topography as input has been developed and validated through flow measurements for three different rough surface test specimens.
Journal ArticleDOI
Real versus synthesized fractal surfaces : Contact mechanics and transport properties
TL;DR: In this paper, the authors analyzed diffusion and viscous flow through the aperture field of a contact between rough surfaces pressed against each other and showed that a fractal representation is a robust representation for the contact mechanics as well as for transport properties for this class of surfaces.