%0 Journal Article
%A Persson, B. N. J.
%T On the elastic energy and stress correlation in the contact between elastic solids with randomly rough surfaces
%J Journal of physics / Condensed matter
%V 20
%@ 0953-8984
%C Bristol
%I IOP Publ.
%M PreJuSER-2767
%P 312001
%D 2008
%Z Record converted from VDB: 12.11.2012
%X When two elastic solids with randomly rough surfaces are brought in contact, a very inhomogeneous stress distribution sigma(x) will occur at the interface. Here I study the elastic energy and the correlation function <sigma(q)sigma(-q)> , where sigma(q) is the Fourier transform of sigma(x) and where <center dot center dot center dot > stands for ensemble average. I relate sigma(q)sigma(-q) to the elastic energy stored at the interface, and I show that for self- affine fractal surfaces, quite generally <sigma(q)sigma(-q)similar to q(-(1+H)), where H is the Hurst exponent of the self-affine fractal surface.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000257759600002
%R 10.1088/0953-8984/20/31/312001
%U https://juser.fz-juelich.de/record/2767