Predictions of the average surface separation and stiffness between contacting elastic and elastic-plastic sinusoidal surfaces
Predictions of the average surface separation and stiffness between contacting elastic and elastic-plastic sinusoidal surfaces
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DOI：
10.1177/1350650113495188
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发表时间：
2013-12-01
影响因子：
2
通讯作者：
Jackson, Robert L.
中科院分区：
文献类型：
--
作者：
Rostami, Amir;Jackson, Robert L.
规则波状表面的接触行为对于粗糙表面接触的研究是重要的，因此在摩擦、磨损、表面疲劳以及接触电阻和接触热阻的预测中具有应用。这项工作的特征之间的正弦曲线表面和平坦的刚性表面作为平均接触压力或负载的函数，使用有限元法（FEM）的平均表面分离。在低接触压力下，有限元结果与极限球基解和高接触压力下的渐近解也吻合得很好。经验拟合提供，可以近似预测的平均表面分离的弹性和弹塑性正弦接触在很宽的范围内的材料特性。接触刚度也可以从表面分离结果预测。
The behavior of regular wavy surfaces in contact is important for the study of rough surface contact, and therefore has applications to the prediction of friction, wear, surface fatigue, and electrical and thermal contact resistance. This work characterizes the average surface separation between a sinusoidal surface and a flat rigid surface as a function of the average contact pressure or load using the finite element method (FEM). The FEM results also agree well with the limiting spherical based solutions at low contact pressures and the other asymptotic solution at high contact pressures. Empirical fits are provided that can approximately predict the average surface separation for both elastic and elastic-plastic sinusoidal contacts over a wide range of material properties. Contact stiffness can also be predicted from surface separation results.