ELASTIC PLASTIC CONTACT MODEL FOR BIFRACTAL SURFACES
ELASTIC PLASTIC CONTACT MODEL FOR BIFRACTAL SURFACES
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DOI：
10.1016/0043-1648(92)90260-f
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发表时间：
1992-03-15
期刊：
影响因子：
5
通讯作者：
MAJUMDAR, A
中科院分区：
文献类型：
--
作者：
BHUSHAN, B;MAJUMDAR, A
粗糙度测量原子力显微镜表明，表面的磁带遵循两个不同的制度的分形结构。针对这种双分形曲面，本文提出了一种弹塑性接触模型。该理论用于预测磁带与硬平面接触的真实的接触面积。理论和实验的趋势是一致的。理论预测表明，当接触压力在1 kPa和10（4）kPa之间时，弹性变形的真实的接触面积的比例约为90%。这与实验观察结果一致。
Roughness measurements by atomic force microscopy have shown that the surfaces of magnetic tapes follow two different regimes of fractal structure. For such bifractal surfaces, this paper presents an elastic-plastic contact model. The theory is used to predict the real area of contact of a magnetic tape in contact with a flat hard plane. The trends of both the theory and experiments are in agreement. The theoretical predictions show that for contact pressures between 1 kPa and 10(4) kPa, the fraction of real area of contact in elastic deformation is about 90%. This is in agreement with experimental observations.