3D finite element model of elastoplastic contact on the double sinus rough surface
نویسندگان
چکیده
منابع مشابه
Elastoplastic contact between randomly rough surfaces.
I have developed a theory of contact mechanics between randomly rough surfaces. The solids are assumed to deform elastically when the stress sigma is below the yield stress sigma(Y), and plastically when sigma reaches sigma(Y). I study the dependence of the (apparent) area of contact on the magnification. I show that in most cases the area of real contact A is proportional to the load. If the r...
متن کاملComment on "elastoplastic contact between randomly rough surfaces".
In a recent Letter, Persson [1] suggested a new model of contact between arbitrary randomly rough surfaces. He considered also fractal surfaces which he characterized above the lower cutoff only by their dimension Df and an additional constant. He argued that in the framework of the model, the area of real contact A in most cases is proportional to the load P. However, there are examples which ...
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This paper introduces an improved friction model accounting for elastoplastic behavior of interacting asperities along contiguous rough surfaces for a line contact solution. It is based on Greenwood and Tripp’s original boundary friction model and specifically tailored for a boundary regime of lubrication. The numerical solution of Reynolds’ equation is achieved by implementing Elrod’s cavitati...
متن کاملA Finite Element Based Elastic-Plastic Model for the Contact of Rough Surfaces
An elastic-plastic model for contacting rough surfaces that is based on accurate Finite Element Analysis (FEA) of an elasticplastic single asperity contact is presented. The plasticity index Ψ is shown to be the main dimensionless parameter that affects the contact of rough surfaces. Below Ψ = 0.6 the contact problem is purely elastic and above Ψ = 8 it is mostly plastic. The mean real contact ...
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abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2011
ISSN: 1742-6596
DOI: 10.1088/1742-6596/311/1/012011