Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Abteilungen OPUS4-3608 Wissenschaftlicher Artikel Lahmer, Tom FEM-Based determination of real and complex elastic, dielectric, and piezoelectric moduli in piezoceramic materials 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. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control urn:nbn:de:gbv:wim2-20171030-36083 10.25643/bauhaus-universitaet.3608 Bauhaus-Institut für zukunftsweisende Infrastruktursysteme (b.is)