@inproceedings{65586,
  author       = {{Zeipert, Henning and Claes, Leander and Hölscher, Jonas and Wippermann, Mareen and Henning, Bernd}},
  booktitle    = {{Fortschritte der Akustik - DAGA 2026}},
  pages        = {{1566–1569}},
  title        = {{{An Approach for the Efficient Solution of Eigenvalue-based Inverse Problems for the Material Characterisation Using Guided Acoustic Waves}}},
  doi          = {{10.71568/DAGA2026.043}},
  year         = {{2026}},
}

@inproceedings{65625,
  author       = {{Friesen, Olga and Hölscher, Jonas and Siegmund, Michael B. K. and Claes, Leander and Henning, Bernd}},
  title        = {{{Experimental and Numerical Investigation of Jump Phenomena in the Frequency Response of Piezoelectric Systems}}},
  year         = {{2026}},
}

@article{65785,
  abstract     = {{Simulation-based design of high-power ultrasonic systems depends on the accurate modelling of the electromechanical behaviour of piezoceramic materials. In practical transducer applications, the relevant operating points are influenced by mechanical preload and heating, both of which give rise to changes in the elastic, dielectric, and piezoelectric material properties. Material parameters identified under idealised, unloaded conditions are therefore insufficient to represent piezoceramic material behaviour under realistic operating conditions. To overcome this limitation, experimental setups are developed that enable the measurement of electrical impedance spectra under controlled thermal and mechanical conditions. The acquired impedance data are used in an inverse identification procedure, in which the behaviour of a finite element forward model is iteratively fitted to the measurements using a block coordinate descent optimisation strategy guided by a sensitivity analysis. This yields effective linear material parameters as a function of temperature and mechanical stress at varying operating points. The identified temperature-dependent parameters, for instance, can be employed in a coupled thermo-electromechanical simulation framework to predict the temperature-dependent material behaviour during operation. The linear identification based on varying operation points provides an initial approximation of the nonlinear material response, establishing a basis for the development of corresponding nonlinear material models.}},
  author       = {{Friesen, Olga and Claes, Leander and Hölscher, Jonas and Henning, Bernd and Scheidemann, Claus and Hemsel, Tobias and Kuess, Raphael and Walther, Andrea and Spieker, Carsten and Förstner, Jens}},
  issn         = {{0171-8096}},
  journal      = {{tm - Technisches Messen}},
  keywords     = {{tet_topic_piezo}},
  publisher    = {{Walter de Gruyter GmbH}},
  title        = {{{Measurement of multiphysical material parameters of piezoceramic components for high-power ultrasonic applications}}},
  doi          = {{10.1515/teme-2026-0042}},
  year         = {{2026}},
}

@misc{66434,
  author       = {{Hölscher, Jonas}},
  title        = {{{Effiziente Simulation nichtlinearer, elastodynamischer Prozesse}}},
  year         = {{2026}},
}

@inproceedings{62300,
  author       = {{Claes, Leander and Hölscher, Jonas and Friesen, Olga and Scheidemann, Claus and Hemsel, Tobias and Henning, Bernd}},
  booktitle    = {{2025 International Congress on Ultrasonics}},
  pages        = {{142–145}},
  publisher    = {{AMA Service GmbH}},
  title        = {{{Estimation of third order elastic constants of piezoceramics using DC biased impedance measurements}}},
  doi          = {{10.5162/ultrasonic2025/a18-a6}},
  year         = {{2025}},
}

@inproceedings{62297,
  author       = {{Hölscher, Jonas and Friesen, Olga and Claes, Leander and Spieker, Carsten and Förstner, Jens and Henning, Bernd}},
  booktitle    = {{2025 International Congress on Ultrasonics}},
  keywords     = {{tet_topic_piezo}},
  pages        = {{130–133}},
  publisher    = {{AMA Service GmbH}},
  title        = {{{Multiscale thermo-piezoelectric simulations using the finite element method}}},
  doi          = {{10.5162/ultrasonic2025/a18-a2}},
  year         = {{2025}},
}

@inproceedings{62296,
  author       = {{Spieker, Carsten and Förstner, Jens and Hölscher, Jonas and Claes, Leander and Henning, Bernd}},
  booktitle    = {{2025 International Congress on Ultrasonics}},
  keywords     = {{tet_topic_piezo}},
  pages        = {{126–129}},
  publisher    = {{AMA Service GmbH}},
  title        = {{{Modeling and simulation of the behavior of piezoceramics with the discontinuous Galerkin method}}},
  doi          = {{10.5162/ultrasonic2025/a18-a1}},
  year         = {{2025}},
}

@inproceedings{53828,
  author       = {{Zeipert, Henning and Hölscher, Jonas and Claes, Leander and Henning, Bernd}},
  booktitle    = {{Fortschritte der Akustik - DAGA 2024}},
  editor       = {{Gesellschaft für Akustik e.V., Deutsche}},
  pages        = {{640–643}},
  title        = {{{Beschreibung des akustischen Verhaltens verklebter plattenförmiger Strukturen mittels Kopplungsmodellen}}},
  year         = {{2024}},
}