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Indentation responses of piezoelectric layered half-space

机译:压电层状半空间的压痕响应

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摘要

A method for solving a class of normal frictionless indentation problems in a multilayered piezoelectric half-space is proposed. The half-space is deformed by a rigid axisymmetric indenter that includes flat-ended cylinder, cone and sphere shapes. Three different interfacial models, i.e. perfectly bonded, frictionless contact and spring-like models, are investigated. Both insulating and conducting indenters are considered. The complete solution in the half-space is obtained by integrating the elastic and electric displacements due to a point load and a point charge with unknown distribution functions over the contact area. These distribution functions are to be determined by using the boundary conditions of the contact problems. The numerical results of the indentation responses of a piezoelectric thin film in contact with a piezoelectric half-space are given as an example of the proposed method.
机译:提出了一种解决多层压电半空间中一类正常无摩擦压痕问题的方法。半空间由刚性的轴对称压头变形,该压头包括平端圆柱,圆锥形和球形形状。研究了三种不同的界面模型,即完美粘结,无摩擦接触和类似弹簧的模型。绝缘压头和导电压头均被考虑。通过积分由于点载荷和点电荷引起的弹性位移和电位移,并在接触区域上具有未知的分布函数,可以得到半空间中的完整解。这些分布函数将通过使用接触问题的边界条件来确定。给出了与压电半空间接触的压电薄膜压痕响应的数值结果,作为该方法的一个例子。

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