کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5362297 | 1388283 | 2010 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Regeneration of surface roughness by the Langevin equation using stochastic analysis on AFM image of a carbon fiber Regeneration of surface roughness by the Langevin equation using stochastic analysis on AFM image of a carbon fiber](/preview/png/5362297.png)
A new method was developed using AFM images of a fiber surface to regenerate the surface roughness in 3D geometry, such as the cylindrical shape of a “model” fiber. The Langevin equation was used to derive the fluctuations of a carbon fiber surface image. The equation contains two quantities, D(1) (h) and D(2) (h) which in physics represent drift and diffusion coefficients. Knowing this coefficient and adding a proper noise function, a similar surface of larger dimension with the same statistical properties of the initial data was created. The generated surface was mapped into cylindrical coordinates, then a mesh generated. The resulting reconstructed surface, input over the geometry of a cylindrical shape, can be implemented for finite element analysis of a single fiber surrounded by matrix and generalized to a many fiber model.
Journal: Applied Surface Science - Volume 257, Issue 3, 15 November 2010, Pages 857-860