梯度压电涂层在绝缘体压头作用下的黏附接触问题研究
首发时间:2018-10-08
摘要:本文主要研究刚性绝缘体圆柱形压头作用在功能梯度压电涂层半空间上的二维黏附接触问题。假设功能梯度压电材料的材料参数沿厚度方向按照指数函数形式变化,压头与涂层接触面间的黏附作用满足Maugis理论模型。运用傅里叶积分变换将梯度压电涂层黏附接触问题转化为奇异积分方程组,再利用数值方法求解进行求解。数值结果表明梯度参数和黏附作用对梯度压电涂层接触行为具有重要的影响。
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Adhesion contact study of gradient piezoelectric coating under the action of insulator punch
Abstract:This paper investigates the two-dimensional adhesive contact problem of a rigid insulating cylindrical punch acting on a gradient piezoelectric coating half-space. It is assumed that the material parameters of functionally gradient piezoelectric materials vary exponentially along the thickness direction. The adhesion between the punch and the contact surface of the coating satisfies the theoretical model of Maugis. By using the Fourier integral transform, the adhesive contact problem of gradient piezoelectric coatings is reduced to singular integral equations. Then the numerical method is applied to solve them. The numerical results show that both gradient parameters and adhesion have significiant effects on the contact behavior of gradient piezoelectric coating.
Keywords: Functionally gradient piezoelectric materials adhesion coating Singular integral equation
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梯度压电涂层在绝缘体压头作用下的黏附接触问题研究
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