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首页> 外文会议>World Tribology Congress III vol.1; 20050912-16; Washington,DC(US) >AN IMPROVED FRACTAL CONTACT MODEL WITH SPECIAL EMPHASIS ON SURFACE ROUGHNESS, ELASTOPLASTIC TRANSITION DEFORMATION ZONE, AND HARDNESS EFFECTS OF COATING FILM
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AN IMPROVED FRACTAL CONTACT MODEL WITH SPECIAL EMPHASIS ON SURFACE ROUGHNESS, ELASTOPLASTIC TRANSITION DEFORMATION ZONE, AND HARDNESS EFFECTS OF COATING FILM

机译：改进的分形接触模型，特别强调表面粗糙度，弹塑性转变变形区和涂膜的硬度效应

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摘要

In this work, fractal characterization of surface topography is applied to the study of contact mechanics between two coating film rough surfaces. Incorporating with MB model, the occurrence of elastic-plastic transition regime and the hardness effect of coating film are considered in the new contact model. Results show that the real contact areas predicted by this new model are larger than those predicted by MB model. For low fractal roughness parameter and fractal dimension of 1.5, up to 19% of difference can be found between the results from the new model and old model.
机译：在这项工作中，表面形貌的分形表征被用于研究两个涂膜粗糙表面之间的接触力学。结合MB模型，在新的接触模型中考虑了弹塑性转变状态的发生和涂膜的硬度效应。结果表明，该新模型预测的实际接触面积大于MB模型预测的实际接触面积。对于低分形粗糙度参数和1.5的分形维数，新模型和旧模型的结果之间最多可以找到19％的差异。

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