FEM-based determination of real and complex elastic, dielectric, and piezoelectric moduli in piezoceramic materials
FEM-based determination of real and complex elastic, dielectric, and piezoelectric moduli in piezoceramic materials
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DOI：
10.1109/tuffc.2008.664
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发表时间：
2008-02-01
影响因子：
3.6
通讯作者：
Leder, Erich
中科院分区：
文献类型：
--
作者：
Lahmer, Tom;Kaltenbacher, Manfred;Leder, Erich
我们提出了一个增强的迭代方案，从电阻抗和机械位移测量的压电材料参数的精确重建。它基于全三维压电方程的有限元模拟，并结合不精确的牛顿或非线性Landweber迭代反演方案。我们将我们的方法应用到两种压电材料，并测试其性能。对于第一种材料，制造商提供了完整的数据集;对于第二种材料，没有材料数据集。对于这两种情况下，我们的逆方案，使用电阻抗测量作为输入数据，表现良好。
We propose an enhanced iterative scheme for the precise reconstruction of piezoelectric material parameters from electric impedance and mechanical displacement measurements. It is based on finite-element simulations of the full three-dimensional piezoelectric equations, combined with an inexact Newton or nonlinear Landweber iterative inversion scheme. We apply our method to two piezoelectric materials and test its performance. For the first material, the manufacturer provides a full data set; for the second one, no material data set is available. For both cases, our inverse scheme, using electric impedance measurements as input data, performs well.