Elastic response of rough surfaces in partial contact
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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If two elastic bodies with rough surfaces are first pressed against each other and then loaded tangentially, sliding will occur at the boundary of the contact area while the inner parts may still stick. With increasing tangential force, the sliding parts will expand while the sticking parts shrink and finally vanish. In this paper, we study the fractions of the contact area, tangential force an...
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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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ژورنال
عنوان ژورنال: Europhysics Letters (EPL)
سال: 2002
ISSN: 0295-5075,1286-4854
DOI: 10.1209/epl/i2002-00368-1