Closed-Form Equations for Contact Force and Moment in Elastic Contact of Rough Surfaces
نویسندگان
چکیده
منابع مشابه
Elastic Response of Rough Surfaces in Partial Contact
– We model numerically the partial normal contact of two elastic rough surfaces with highly correlated asperities. Facing surfaces are unmated and described as self-affine with a Hurst exponent H . The numerical algorithm is based on Fourier acceleration and allows efficient simulation of very large systems. The force, F , versus contact area, A, characteristics follows the law F ∼ A in accorda...
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A numerical analysis of mechanical frictionless contact between rough self-affine elastic manifolds was carried out. It is shown that the lower cutoff wave number in surface spectra is a key parameter controlling the representativity of the numerical model. Using this notion we demonstrate that for representative surfaces the evolution of the real contact area with load is universal and indepen...
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When two solids are squeezed together they will in general not make atomic contact everywhere within the nominal (or apparent) contact area. This fact has huge practical implications and must be considered in many technological applications. In this paper I briefly review the basic theories of contact mechanics. I consider in detail a recently developed contact mechanics theory. I derive bounda...
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Boundary contact problems of statics of the moment (couplestress) theory of elasticity are studied in the case of a unilateral contact of two elastic anisotropic nonhomogeneous media. A problem, in which during deformation the contact zone lies within the boundaries of some domain, and a problem, in which the contact zone can extend, are given a separate treatment. Concrete problems suitable fo...
متن کاملContact stiffness of randomly rough surfaces
We investigate the contact stiffness of an elastic half-space and a rigid indenter with randomly rough surface having a power spectrum C2D(q)proportional q(-2H-2), where q is the wave vector. The range of H[symbol: see text] is studied covering a wide range of roughness types from white noise to smooth single asperities. At low forces, the contact stiffness is in all cases a power law function ...
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ژورنال
عنوان ژورنال: Modelling and Simulation in Engineering
سال: 2011
ISSN: 1687-5591,1687-5605
DOI: 10.1155/2011/739562