@article{57820,
  author       = {{Nikolić, Vanja and Winkler, Michael}},
  issn         = {{0362-546X}},
  journal      = {{Nonlinear Analysis}},
  publisher    = {{Elsevier BV}},
  title        = {{{L∞ blow-up in the Jordan-Moore-Gibson-Thompson equation}}},
  doi          = {{10.1016/j.na.2024.113600}},
  volume       = {{247}},
  year         = {{2024}},
}

@inproceedings{51117,
  author       = {{Scheidemann, Claus and Hemsel, Tobias and Friesen, Olga and Claes, Leander and Sextro, Walter}},
  location     = {{Jeju, Korea}},
  title        = {{{Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics}}},
  year         = {{2023}},
}

@article{45445,
  author       = {{Claes, Leander and Feldmann, Nadine and Schulze, Veronika and Meihost, Lars and Kuhlmann, Henrik and Jurgelucks, Benjamin and Walther, Andrea and Henning, Bernd}},
  journal      = {{Journal of Sensors and Sensor Systems}},
  number       = {{1}},
  pages        = {{163–173}},
  title        = {{{Inverse procedure for measuring piezoelectric material parameters using a single multi-electrode sample}}},
  doi          = {{10.5194/jsss-12-163-2023}},
  volume       = {{12}},
  year         = {{2023}},
}

@misc{45455,
  author       = {{Claes, Leander and Meihost, Lars and Jurgelucks, Benjamin}},
  title        = {{{Inverse procedure for the identification of piezoelectric material parameters supported by dense neural networks}}},
  year         = {{2023}},
}

@misc{45456,
  author       = {{Jurgelucks, Benjamin}},
  title        = {{{Parameter Identification of Piezoelectrics improved by Neural Networks}}},
  year         = {{2023}},
}

@misc{45457,
  author       = {{Kuess, Raphael}},
  title        = {{{Parameter identification in piezoelectricity based on all-at-once and reduced regularization}}},
  year         = {{2023}},
}

@inproceedings{6553,
  author       = {{Claes, Leander and Feldmann, Nadine and Schulze, Veronika and Jurgelucks, Benjamin and Walther, Andrea and Henning, Bernd}},
  booktitle    = {{Fortschritte der Akustik - DAGA 2022}},
  location     = {{Stuttgart}},
  pages        = {{1326--1329}},
  title        = {{{Identification of piezoelectric material parameters using optimised multi-electrode specimens}}},
  year         = {{2022}},
}

@misc{6558,
  author       = {{Friesen, Olga and Claes, Leander and Feldmann, Nadine and Henning, Bernd}},
  title        = {{{Estimation of piezoelectric material parameters of ring-shaped specimens}}},
  year         = {{2022}},
}

@phdthesis{6563,
  abstract     = {{Designprozesse von Schallwandlern werden durch zunehmende Rechenkapazitäten immer mehr durch simulative Betrachtungen unterstützt. Dabei ist vor allem die Wahl der Materialparameter der verwendeten Materialien wichtig für ein realitätsnahes Simulationsergebnis. Bei Schallwandlern werden häufig Piezokeramiken als aktive Elemente genutzt, welche sich durch eine Verkopplung mechanischer und elektrischer Eigenschaften auszeichnen. Zur Bestimmung ihrer Materialparameter stellt der IEEE Standard on Piezoelectricity ein standardisiertes Verfahren dar. Dazu sind fünf Impedanzmessungen an vier unterschiedlich gefertigten Probekörpergeometrien notwendig. Da an jedem einzelnen Probekörper nur eine Untermenge aller notwendigen Materialparameter bestimmt werden kann, werden diese dann zu einem kompletten Materialparametersatz zusammengefügt. Aufgrund der unterschiedlichen Prozessbedingungen, bei denen die jeweiligen Probekörper hergestellt werden, ist dieser Materialparametersatz jedoch inkonsistent und kann nie das Verhalten einer einzelnen Probe beschreiben. Daher wird in der vorliegenden Arbeit ein Messverfahren entwickelt, mit dem es möglich ist, alle relevanten Materialparameter unter besonderer Berücksichtigung von Dämpfung an einem einzelnen Probekörper allein durch Impedanzmessungen zu bestimmen. Als Probekörper wird dazu eine in der Anwendung häufig verwendete Scheibengeometrie verwendet. Um eine hinreichend hohe Sensitivität auf alle Materialparameter zu gewährleisten, wird diese mit einer optimierten Elektrodentopologie gefertigt. Da in diesem Fall keine analytische Betrachtung mehr möglich ist, wird das Messverfahren durch einen inversen Ansatz realisiert.}},
  author       = {{Feldmann, Nadine}},
  pages        = {{184}},
  publisher    = {{Universität Paderborn}},
  title        = {{{	 Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers}}},
  doi          = {{10.17619/UNIPB/1-1264}},
  year         = {{2021}},
}

@article{21341,
  abstract     = {{The progress in numerical methods and simulation tools promotes the use of inverse problems in material characterisation problems. A newly developed procedure can be used to identify the behaviour of piezoceramic discs over a wide frequency range using a single specimen via fitting simulated and measured impedances by optimising the underlying material parameters. Since there is no generally accepted damping model for piezoelectric ceramics, several mechanical damping models are examined for the material identification. Three models have been chosen and their ability to replicate the measured impedances is evaluated. On the one hand, the common Rayleigh model is considered as a reference. On the other hand, a Zener model and a model using complex constants are extended to model the transversely isotropic material. As the Rayleigh model is only valid for a limited frequency range, it fails to model the broadband behaviour of the material. The model using complex constants leads to the best fit over a wide frequency range while at the same time only adding three additional parameters for modelling damping. Thus, damping can be assumed approximately frequency-independent in piezoceramics.}},
  author       = {{Feldmann, Nadine and Schulze, Veronika and Claes, Leander and Jurgelucks, Benjamin and Meihost, Lars and Walther, Andrea and Henning, Bernd}},
  issn         = {{2196-7113}},
  journal      = {{tm - Technisches Messen}},
  number       = {{5}},
  pages        = {{294 -- 302}},
  title        = {{{Modelling damping in piezoceramics: A comparative study}}},
  doi          = {{10.1515/teme-2020-0096}},
  volume       = {{88}},
  year         = {{2021}},
}

@inproceedings{22012,
  author       = {{Claes, Leander and Feldmann, Nadine and Jurgelucks, Benjamin and Schulze, Veronika and Schmidt, Stephan and Walther, Andrea and Henning, Bernd}},
  location     = {{Nürnberg}},
  pages        = {{237--238}},
  title        = {{{Optimised Multi-Electrode Topology for Piezoelectric Material Characterisation}}},
  doi          = {{10.5162/SMSI2021/A10.1}},
  year         = {{2021}},
}

@misc{21233,
  author       = {{Schulze, Veronika and Schmidt, Stephan and Jurgelucks, Benjamin and Feldmann, Nadine and Claes, Leander}},
  title        = {{{Optimal experiment design with respect to electrode configurations for a piezoelectric problem}}},
  year         = {{2021}},
}

@misc{23462,
  author       = {{Schulze, Veronika and Schmidt, Stephan and Jurgelucks, Benjamin and Feldmann, Nadine and Claes, Leander}},
  title        = {{{Piezoelectric BC Modeling for Electrode Shapes with OED}}},
  year         = {{2021}},
}

@article{19313,
  abstract     = {{The increasingly simulation-driven design process of ultrasonic transducers requires several reliable parameters for the description of the material behaviour. Exact results can only be achieved when a single specimen is used in the identification process, which typically is prone to the problem of low sensitivities to certain material parameters and thus high uncertainties. Therefore, a custom electrode topology for increased sensitivity is proposed for a piezoceramic disc. The thereupon conducted measurements of the electric impedance can be used as a starting point for an inverse approach where an equivalent simulation model is used to identify fitting material parameters. An optimisation strategy based on a preliminary sensitivity analysis is presented that leads to a good agreement between measurement and simulation. Furthermore, the proposed measurement procedure is able to evaluate the quality of the simulation model. Hence, different frequency-dependent damping models are presented and evaluated.}},
  author       = {{Feldmann, Nadine and Schulze, Veronika and Claes, Leander and Jurgelucks, Benjamin and Walther, Andrea and Henning, Bernd}},
  issn         = {{2196-7113}},
  journal      = {{tm - Technisches Messen}},
  pages        = {{50--55}},
  title        = {{{Inverse piezoelectric material parameter characterization using a single disc-shaped specimen}}},
  doi          = {{10.1515/teme-2020-0012}},
  year         = {{2020}},
}

@misc{8482,
  author       = {{Jurgelucks, Benjamin and Schulze, Veronika and Feldmann, Nadine and Claes, Leander}},
  title        = {{{Arbitrary sensitivity for inverse problems in piezoelectricity}}},
  year         = {{2019}},
}

@inproceedings{12952,
  author       = {{Dreiling, Dmitrij and Feldmann, Nadine and Henning, Bernd}},
  keywords     = {{piezoelectric materials, piezoelectric properties, DC bias field, non-linear material parameters}},
  location     = {{Nürnberg}},
  publisher    = {{AMA Service GmbH}},
  title        = {{{A DC bias approach to the characterisation of non-linear material parameters of piezoelectric ceramics}}},
  doi          = {{10.5162/sensoren2019/5.1.2}},
  year         = {{2019}},
}