Elastic-perfectly Plastic Contact Analysis of Rough Surfaces Base on Random Cantor set Models
Date Issued
2004
Date
2004
Author(s)
Su, Yu-Jen
DOI
zh-TW
Abstract
When two surfaces are in contact﹐the load-displacement relationship depends on the surface topography as well as the material properties of the surfaces.This thesis constructs a random fractal surface model based on the Cantor set.The effects of the random fractal parameters on the elastic-plastic contact behavior are investigated.Given the expectation and standard variation of the random fractal parameter﹐we can obtain the expectation and standard variation of the applied load.If the deformation is purely elastic﹐the probability distribution function of the applied load can also be determined.Finally﹐the Monte-Carlo simulation is employed to verify the analytical results.
Subjects
Cantor集
隨機變數
接觸力學
碎型表面模型
contact mechanics
random variable
Cantor set
fractal surface model
Type
thesis
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