[{"language":[{"iso":"eng"}],"project":[{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"_id":"62300","user_id":"11829","department":[{"_id":"49"}],"status":"public","type":"conference","publication":"2025 International Congress on Ultrasonics","title":"Estimation of third order elastic constants of piezoceramics using DC biased impedance measurements","doi":"10.5162/ultrasonic2025/a18-a6","publisher":"AMA Service GmbH","date_updated":"2026-01-13T13:00:31Z","date_created":"2025-11-25T12:23:06Z","author":[{"first_name":"Leander","full_name":"Claes, Leander","id":"11829","last_name":"Claes","orcid":"0000-0002-4393-268X"},{"first_name":"Jonas","last_name":"Hölscher","full_name":"Hölscher, Jonas","id":"73952"},{"first_name":"Olga","last_name":"Friesen","id":"44026","full_name":"Friesen, Olga"},{"first_name":"Claus","id":"38259","full_name":"Scheidemann, Claus","last_name":"Scheidemann"},{"first_name":"Tobias","id":"210","full_name":"Hemsel, Tobias","last_name":"Hemsel"},{"last_name":"Henning","id":"213","full_name":"Henning, Bernd","first_name":"Bernd"}],"year":"2025","place":"Paderborn","citation":{"bibtex":"@inproceedings{Claes_Hölscher_Friesen_Scheidemann_Hemsel_Henning_2025, place={Paderborn}, title={Estimation of third order elastic constants of piezoceramics using DC biased impedance measurements}, DOI={<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a6\">10.5162/ultrasonic2025/a18-a6</a>}, booktitle={2025 International Congress on Ultrasonics}, publisher={AMA Service GmbH}, author={Claes, Leander and Hölscher, Jonas and Friesen, Olga and Scheidemann, Claus and Hemsel, Tobias and Henning, Bernd}, year={2025}, pages={142–145} }","mla":"Claes, Leander, et al. “Estimation of Third Order Elastic Constants of Piezoceramics Using DC Biased Impedance Measurements.” <i>2025 International Congress on Ultrasonics</i>, AMA Service GmbH, 2025, pp. 142–145, doi:<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a6\">10.5162/ultrasonic2025/a18-a6</a>.","short":"L. Claes, J. Hölscher, O. Friesen, C. Scheidemann, T. Hemsel, B. Henning, in: 2025 International Congress on Ultrasonics, AMA Service GmbH, Paderborn, 2025, pp. 142–145.","apa":"Claes, L., Hölscher, J., Friesen, O., Scheidemann, C., Hemsel, T., &#38; Henning, B. (2025). Estimation of third order elastic constants of piezoceramics using DC biased impedance measurements. <i>2025 International Congress on Ultrasonics</i>, 142–145. <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a6\">https://doi.org/10.5162/ultrasonic2025/a18-a6</a>","ama":"Claes L, Hölscher J, Friesen O, Scheidemann C, Hemsel T, Henning B. Estimation of third order elastic constants of piezoceramics using DC biased impedance measurements. In: <i>2025 International Congress on Ultrasonics</i>. AMA Service GmbH; 2025:142–145. doi:<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a6\">10.5162/ultrasonic2025/a18-a6</a>","ieee":"L. Claes, J. Hölscher, O. Friesen, C. Scheidemann, T. Hemsel, and B. Henning, “Estimation of third order elastic constants of piezoceramics using DC biased impedance measurements,” in <i>2025 International Congress on Ultrasonics</i>, 2025, pp. 142–145, doi: <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a6\">10.5162/ultrasonic2025/a18-a6</a>.","chicago":"Claes, Leander, Jonas Hölscher, Olga Friesen, Claus Scheidemann, Tobias Hemsel, and Bernd Henning. “Estimation of Third Order Elastic Constants of Piezoceramics Using DC Biased Impedance Measurements.” In <i>2025 International Congress on Ultrasonics</i>, 142–145. Paderborn: AMA Service GmbH, 2025. <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a6\">https://doi.org/10.5162/ultrasonic2025/a18-a6</a>."},"page":"142–145"},{"status":"public","type":"conference","publication":"2025 International Congress on Ultrasonics","language":[{"iso":"eng"}],"project":[{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"_id":"62297","user_id":"11829","department":[{"_id":"49"},{"_id":"61"}],"year":"2025","place":"Paderborn","citation":{"chicago":"Hölscher, Jonas, Olga Friesen, Leander Claes, Carsten Spieker, Jens Förstner, and Bernd Henning. “Multiscale Thermo-Piezoelectric Simulations Using the Finite Element Method.” In <i>2025 International Congress on Ultrasonics</i>, 130–133. Paderborn: AMA Service GmbH, 2025. <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a2\">https://doi.org/10.5162/ultrasonic2025/a18-a2</a>.","ieee":"J. Hölscher, O. Friesen, L. Claes, C. Spieker, J. Förstner, and B. Henning, “Multiscale thermo-piezoelectric simulations using the finite element method,” in <i>2025 International Congress on Ultrasonics</i>, 2025, pp. 130–133, doi: <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a2\">10.5162/ultrasonic2025/a18-a2</a>.","ama":"Hölscher J, Friesen O, Claes L, Spieker C, Förstner J, Henning B. Multiscale thermo-piezoelectric simulations using the finite element method. In: <i>2025 International Congress on Ultrasonics</i>. AMA Service GmbH; 2025:130–133. doi:<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a2\">10.5162/ultrasonic2025/a18-a2</a>","short":"J. Hölscher, O. Friesen, L. Claes, C. Spieker, J. Förstner, B. Henning, in: 2025 International Congress on Ultrasonics, AMA Service GmbH, Paderborn, 2025, pp. 130–133.","mla":"Hölscher, Jonas, et al. “Multiscale Thermo-Piezoelectric Simulations Using the Finite Element Method.” <i>2025 International Congress on Ultrasonics</i>, AMA Service GmbH, 2025, pp. 130–133, doi:<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a2\">10.5162/ultrasonic2025/a18-a2</a>.","bibtex":"@inproceedings{Hölscher_Friesen_Claes_Spieker_Förstner_Henning_2025, place={Paderborn}, title={Multiscale thermo-piezoelectric simulations using the finite element method}, DOI={<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a2\">10.5162/ultrasonic2025/a18-a2</a>}, booktitle={2025 International Congress on Ultrasonics}, publisher={AMA Service GmbH}, author={Hölscher, Jonas and Friesen, Olga and Claes, Leander and Spieker, Carsten and Förstner, Jens and Henning, Bernd}, year={2025}, pages={130–133} }","apa":"Hölscher, J., Friesen, O., Claes, L., Spieker, C., Förstner, J., &#38; Henning, B. (2025). Multiscale thermo-piezoelectric simulations using the finite element method. <i>2025 International Congress on Ultrasonics</i>, 130–133. <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a2\">https://doi.org/10.5162/ultrasonic2025/a18-a2</a>"},"page":"130–133","title":"Multiscale thermo-piezoelectric simulations using the finite element method","doi":"10.5162/ultrasonic2025/a18-a2","date_updated":"2026-01-13T12:59:56Z","publisher":"AMA Service GmbH","date_created":"2025-11-25T12:23:06Z","author":[{"id":"73952","full_name":"Hölscher, Jonas","last_name":"Hölscher","first_name":"Jonas"},{"first_name":"Olga","last_name":"Friesen","id":"44026","full_name":"Friesen, Olga"},{"first_name":"Leander","last_name":"Claes","orcid":"0000-0002-4393-268X","id":"11829","full_name":"Claes, Leander"},{"first_name":"Carsten","last_name":"Spieker","id":"67587","full_name":"Spieker, Carsten"},{"last_name":"Förstner","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens","id":"158","first_name":"Jens"},{"first_name":"Bernd","last_name":"Henning","id":"213","full_name":"Henning, Bernd"}]},{"issue":"65","publication_status":"published","publication_identifier":{"issn":["2681-4617"]},"citation":{"ama":"Claes L, Koch K, Friesen O, Meihost L. 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Machine Learning-Supported Inverse Measurement Procedure for Broadband, Temperature Dependent Piezoelectric Material Parameters. <i>Acta Acustica</i>, <i>9</i>(65). <a href=\"https://doi.org/10.1051/aacus/2025044\">https://doi.org/10.1051/aacus/2025044</a>","short":"L. Claes, K. Koch, O. Friesen, L. 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Henning, in: 2025 International Congress on Ultrasonics, AMA Service GmbH, Paderborn, 2025, pp. 138–141.","bibtex":"@inproceedings{Friesen_Scheidemann_Claes_Hemsel_Henning_2025, place={Paderborn}, title={Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer}, DOI={<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a4\">10.5162/ultrasonic2025/a18-a4</a>}, booktitle={2025 International Congress on Ultrasonics}, publisher={AMA Service GmbH}, author={Friesen, Olga and Scheidemann, Claus and Claes, Leander and Hemsel, Tobias and Henning, Bernd}, year={2025}, pages={138–141} }","ama":"Friesen O, Scheidemann C, Claes L, Hemsel T, Henning B. Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer. In: <i>2025 International Congress on Ultrasonics</i>. 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Henning, “Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer,” in <i>2025 International Congress on Ultrasonics</i>, 2025, pp. 138–141, doi: <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a4\">10.5162/ultrasonic2025/a18-a4</a>."},"year":"2025","place":"Paderborn","date_created":"2025-11-25T12:23:06Z","author":[{"first_name":"Olga","last_name":"Friesen","full_name":"Friesen, Olga","id":"44026"},{"last_name":"Scheidemann","id":"38259","full_name":"Scheidemann, Claus","first_name":"Claus"},{"first_name":"Leander","id":"11829","full_name":"Claes, Leander","orcid":"0000-0002-4393-268X","last_name":"Claes"},{"full_name":"Hemsel, Tobias","id":"210","last_name":"Hemsel","first_name":"Tobias"},{"first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd","id":"213"}],"date_updated":"2026-01-05T08:00:48Z","publisher":"AMA Service GmbH","doi":"10.5162/ultrasonic2025/a18-a4","title":"Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer","publication":"2025 International Congress on Ultrasonics","type":"conference","status":"public","department":[{"_id":"49"},{"_id":"151"}],"user_id":"11829","_id":"62299","project":[{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"language":[{"iso":"eng"}]},{"publisher":"AMA Service GmbH","date_updated":"2026-01-05T08:01:47Z","author":[{"first_name":"Raphael","full_name":"Kuess, Raphael","last_name":"Kuess"},{"last_name":"Friesen","id":"44026","full_name":"Friesen, Olga","first_name":"Olga"},{"first_name":"Bernd","full_name":"Henning, Bernd","id":"213","last_name":"Henning"},{"first_name":"Andrea","last_name":"Walther","full_name":"Walther, Andrea"}],"date_created":"2025-11-25T12:23:06Z","title":"Identification of temperature-dependent material parameter functions in piezoelectricity","doi":"10.5162/ultrasonic2025/a18-a3","year":"2025","place":"Germany","citation":{"apa":"Kuess, R., Friesen, O., Henning, B., &#38; Walther, A. (2025). Identification of temperature-dependent material parameter functions in piezoelectricity. <i>2025 International Congress on Ultrasonics</i>, 134–137. <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a3\">https://doi.org/10.5162/ultrasonic2025/a18-a3</a>","bibtex":"@inproceedings{Kuess_Friesen_Henning_Walther_2025, place={Germany}, title={Identification of temperature-dependent material parameter functions in piezoelectricity}, DOI={<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a3\">10.5162/ultrasonic2025/a18-a3</a>}, booktitle={2025 International Congress on Ultrasonics}, publisher={AMA Service GmbH}, author={Kuess, Raphael and Friesen, Olga and Henning, Bernd and Walther, Andrea}, year={2025}, pages={134–137} }","mla":"Kuess, Raphael, et al. “Identification of Temperature-Dependent Material Parameter Functions in Piezoelectricity.” <i>2025 International Congress on Ultrasonics</i>, AMA Service GmbH, 2025, pp. 134–137, doi:<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a3\">10.5162/ultrasonic2025/a18-a3</a>.","short":"R. Kuess, O. Friesen, B. Henning, A. Walther, in: 2025 International Congress on Ultrasonics, AMA Service GmbH, Germany, 2025, pp. 134–137.","ieee":"R. Kuess, O. Friesen, B. Henning, and A. Walther, “Identification of temperature-dependent material parameter functions in piezoelectricity,” in <i>2025 International Congress on Ultrasonics</i>, 2025, pp. 134–137, doi: <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a3\">10.5162/ultrasonic2025/a18-a3</a>.","chicago":"Kuess, Raphael, Olga Friesen, Bernd Henning, and Andrea Walther. “Identification of Temperature-Dependent Material Parameter Functions in Piezoelectricity.” In <i>2025 International Congress on Ultrasonics</i>, 134–137. Germany: AMA Service GmbH, 2025. <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a3\">https://doi.org/10.5162/ultrasonic2025/a18-a3</a>.","ama":"Kuess R, Friesen O, Henning B, Walther A. Identification of temperature-dependent material parameter functions in piezoelectricity. In: <i>2025 International Congress on Ultrasonics</i>. AMA Service GmbH; 2025:134–137. doi:<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a3\">10.5162/ultrasonic2025/a18-a3</a>"},"page":"134–137","project":[{"name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)","_id":"245"}],"_id":"62298","user_id":"11829","department":[{"_id":"49"}],"language":[{"iso":"eng"}],"type":"conference","publication":"2025 International Congress on Ultrasonics","status":"public"},{"type":"conference","status":"public","department":[{"_id":"49"}],"user_id":"11829","_id":"59689","project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)","_id":"245"}],"language":[{"iso":"eng"}],"citation":{"chicago":"Friesen, Olga, Lars Meihost, Kevin Koch, Leander Claes, and Bernd Henning. “Estimation of Piezoelectric Material Parameters under Varying Electric Field Conditions,” 2025. <a href=\"https://doi.org/10.71568/DASDAGA2025.078\">https://doi.org/10.71568/DASDAGA2025.078</a>.","ieee":"O. Friesen, L. Meihost, K. Koch, L. Claes, and B. Henning, “Estimation of piezoelectric material parameters under varying electric field conditions,” presented at the DAS | DAGA 2025 - 51st Annual Meeting on Acoustics, Copenhagen, 2025, doi: <a href=\"https://doi.org/10.71568/DASDAGA2025.078\">10.71568/DASDAGA2025.078</a>.","ama":"Friesen O, Meihost L, Koch K, Claes L, Henning B. Estimation of piezoelectric material parameters under varying electric field conditions. In: ; 2025. doi:<a href=\"https://doi.org/10.71568/DASDAGA2025.078\">10.71568/DASDAGA2025.078</a>","mla":"Friesen, Olga, et al. <i>Estimation of Piezoelectric Material Parameters under Varying Electric Field Conditions</i>. 2025, doi:<a href=\"https://doi.org/10.71568/DASDAGA2025.078\">10.71568/DASDAGA2025.078</a>.","short":"O. Friesen, L. Meihost, K. Koch, L. Claes, B. Henning, in: 2025.","bibtex":"@inproceedings{Friesen_Meihost_Koch_Claes_Henning_2025, title={Estimation of piezoelectric material parameters under varying electric field conditions}, DOI={<a href=\"https://doi.org/10.71568/DASDAGA2025.078\">10.71568/DASDAGA2025.078</a>}, author={Friesen, Olga and Meihost, Lars and Koch, Kevin and Claes, Leander and Henning, Bernd}, year={2025} }","apa":"Friesen, O., Meihost, L., Koch, K., Claes, L., &#38; Henning, B. (2025). <i>Estimation of piezoelectric material parameters under varying electric field conditions</i>. DAS | DAGA 2025 - 51st Annual Meeting on Acoustics, Copenhagen. <a href=\"https://doi.org/10.71568/DASDAGA2025.078\">https://doi.org/10.71568/DASDAGA2025.078</a>"},"year":"2025","author":[{"last_name":"Friesen","id":"44026","full_name":"Friesen, Olga","first_name":"Olga"},{"full_name":"Meihost, Lars","id":"24769","last_name":"Meihost","first_name":"Lars"},{"first_name":"Kevin","last_name":"Koch","full_name":"Koch, Kevin"},{"full_name":"Claes, Leander","id":"11829","last_name":"Claes","orcid":"0000-0002-4393-268X","first_name":"Leander"},{"last_name":"Henning","id":"213","full_name":"Henning, Bernd","first_name":"Bernd"}],"date_created":"2025-04-25T08:51:32Z","date_updated":"2026-01-05T08:02:20Z","oa":"1","conference":{"start_date":"2025-03-17","name":"DAS | DAGA 2025 - 51st Annual Meeting on Acoustics","location":"Copenhagen","end_date":"2025-03-20"},"doi":"10.71568/DASDAGA2025.078","main_file_link":[{"open_access":"1"}],"title":"Estimation of piezoelectric material parameters under varying electric field conditions"},{"year":"2024","date_created":"2024-05-02T13:25:29Z","title":"Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last","publication":"Fortschritte der Akustik - DAGA 2024","abstract":[{"lang":"ger","text":"Piezoelektrische Keramiken finden sowohl in Sensoren als auch in Aktoren Anwendung. Bei Hochleistungs-Ultraschallanwendungen sind diese Komponenten erheblichen elektrischen und mechanischen Belastungen ausgesetzt, was zum Auftreten nichtlinearer Effekte führt. Um das nichtlineare Materialverhalten piezoelektrischer Keramiken zu charakterisieren, kann eine statische mechanische Last aufgebracht werden, die den mechanischen Arbeitspunkt verschiebt. Durch Variation dieser statischen mechanischen Belastung kann das lineare Verhalten in jedem Betriebspunkt charakterisiert werden, woraufhin die nichtlinearen Eigenschaften des Materials angenähert werden können. Allerdings ist die Sicherstellung einer homogenen mechanischen Last anspruchsvoll. Alternativ kann eine hydrostatische Belastung realisiert werden, indem die Probe in einen Behälter gegeben wird, der mit unter Druck stehendem Fluid gefüllt ist. Dadurch wird eine gleichmäßige Lastverteilung über die Oberfläche der Probe erreicht.\r\n\r\nIn diesem Beitrag wird ein Versuchsaufbau zur Durchführung elektrischer Impedanzmessungen an piezoelektrischen Keramiken in einem Druckbehälter vorgestellt. Die Probe wird im Inneren des Druckbehälters elektrisch kontaktiert. Unter Verwendung von unter Druck stehendem Argon wird auf diese Weise die Messung der elektrischen Impedanz unter hydrostatischer Last von bis zu 200 bar ermöglicht. Anschließend wird ein inverses Verfahren angewendet, um die Materialparameter in Abhängigkeit von der aufgebrachten Last zu ermitteln."}],"file":[{"file_size":453108,"file_id":"53826","access_level":"open_access","file_name":"daga2024friesen.pdf","date_updated":"2024-05-02T14:07:24Z","date_created":"2024-05-02T13:38:37Z","creator":"ofriesen","relation":"main_file","content_type":"application/pdf"}],"ddc":["620"],"language":[{"iso":"ger"}],"has_accepted_license":"1","publication_status":"published","page":"1117–1120","citation":{"ama":"Friesen O, Pasha MA, Schwengelbeck M, Claes L, Baumhögger E, Henning B. Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last. In: <i>Fortschritte der Akustik - DAGA 2024</i>. ; 2024:1117–1120.","chicago":"Friesen, Olga, Muhammad Ahsan Pasha, Max Schwengelbeck, Leander Claes, Elmar Baumhögger, and Bernd Henning. “Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last.” In <i>Fortschritte der Akustik - DAGA 2024</i>, 1117–1120, 2024.","ieee":"O. Friesen, M. A. Pasha, M. Schwengelbeck, L. Claes, E. Baumhögger, and B. Henning, “Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last,” in <i>Fortschritte der Akustik - DAGA 2024</i>, Hannover, 2024, pp. 1117–1120.","apa":"Friesen, O., Pasha, M. A., Schwengelbeck, M., Claes, L., Baumhögger, E., &#38; Henning, B. (2024). Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last. <i>Fortschritte der Akustik - DAGA 2024</i>, 1117–1120.","mla":"Friesen, Olga, et al. “Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last.” <i>Fortschritte der Akustik - DAGA 2024</i>, 2024, pp. 1117–1120.","short":"O. Friesen, M.A. Pasha, M. Schwengelbeck, L. Claes, E. Baumhögger, B. Henning, in: Fortschritte der Akustik - DAGA 2024, 2024, pp. 1117–1120.","bibtex":"@inproceedings{Friesen_Pasha_Schwengelbeck_Claes_Baumhögger_Henning_2024, title={Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last}, booktitle={Fortschritte der Akustik - DAGA 2024}, author={Friesen, Olga and Pasha, Muhammad Ahsan and Schwengelbeck, Max and Claes, Leander and Baumhögger, Elmar and Henning, Bernd}, year={2024}, pages={1117–1120} }"},"date_updated":"2026-01-05T07:56:21Z","oa":"1","author":[{"first_name":"Olga","last_name":"Friesen","id":"44026","full_name":"Friesen, Olga"},{"full_name":"Pasha, Muhammad Ahsan","last_name":"Pasha","first_name":"Muhammad Ahsan"},{"full_name":"Schwengelbeck, Max","last_name":"Schwengelbeck","first_name":"Max"},{"last_name":"Claes","orcid":"0000-0002-4393-268X","id":"11829","full_name":"Claes, Leander","first_name":"Leander"},{"first_name":"Elmar","last_name":"Baumhögger","id":"15164","full_name":"Baumhögger, Elmar"},{"last_name":"Henning","id":"213","full_name":"Henning, Bernd","first_name":"Bernd"}],"conference":{"end_date":"2024-03-21","location":"Hannover","name":"DAGA 2024 - 50. JAHRESTAGUNG FÜR AKUSTIK","start_date":"2024-03-18"},"type":"conference","status":"public","_id":"53822","project":[{"name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)","_id":"245"}],"user_id":"11829","file_date_updated":"2024-05-02T14:07:24Z"},{"year":"2024","citation":{"apa":"Friesen, O., Claes, L., Scheidemann, C., Feldmann, N., Hemsel, T., &#38; Henning, B. (2024). Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens. <i>2023 International Congress on Ultrasonics, Beijing, China</i>, <i>2822</i>, 012125. <a href=\"https://doi.org/10.1088/1742-6596/2822/1/012125\">https://doi.org/10.1088/1742-6596/2822/1/012125</a>","mla":"Friesen, Olga, et al. “Estimation of Temperature-Dependent Piezoelectric Material Parameters Using Ring-Shaped Specimens.” <i>2023 International Congress on Ultrasonics, Beijing, China</i>, vol. 2822, IOP Publishing, 2024, p. 012125, doi:<a href=\"https://doi.org/10.1088/1742-6596/2822/1/012125\">10.1088/1742-6596/2822/1/012125</a>.","short":"O. Friesen, L. Claes, C. Scheidemann, N. Feldmann, T. Hemsel, B. Henning, in: 2023 International Congress on Ultrasonics, Beijing, China, IOP Publishing, 2024, p. 012125.","bibtex":"@inproceedings{Friesen_Claes_Scheidemann_Feldmann_Hemsel_Henning_2024, title={Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens}, volume={2822}, DOI={<a href=\"https://doi.org/10.1088/1742-6596/2822/1/012125\">10.1088/1742-6596/2822/1/012125</a>}, booktitle={2023 International Congress on Ultrasonics, Beijing, China}, publisher={IOP Publishing}, author={Friesen, Olga and Claes, Leander and Scheidemann, Claus and Feldmann, Nadine and Hemsel, Tobias and Henning, Bernd}, year={2024}, pages={012125} }","chicago":"Friesen, Olga, Leander Claes, Claus Scheidemann, Nadine Feldmann, Tobias Hemsel, and Bernd Henning. “Estimation of Temperature-Dependent Piezoelectric Material Parameters Using Ring-Shaped Specimens.” In <i>2023 International Congress on Ultrasonics, Beijing, China</i>, 2822:012125. IOP Publishing, 2024. <a href=\"https://doi.org/10.1088/1742-6596/2822/1/012125\">https://doi.org/10.1088/1742-6596/2822/1/012125</a>.","ieee":"O. Friesen, L. Claes, C. Scheidemann, N. Feldmann, T. Hemsel, and B. Henning, “Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens,” in <i>2023 International Congress on Ultrasonics, Beijing, China</i>, 2024, vol. 2822, p. 012125, doi: <a href=\"https://doi.org/10.1088/1742-6596/2822/1/012125\">10.1088/1742-6596/2822/1/012125</a>.","ama":"Friesen O, Claes L, Scheidemann C, Feldmann N, Hemsel T, Henning B. Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens. In: <i>2023 International Congress on Ultrasonics, Beijing, China</i>. Vol 2822. IOP Publishing; 2024:012125. doi:<a href=\"https://doi.org/10.1088/1742-6596/2822/1/012125\">10.1088/1742-6596/2822/1/012125</a>"},"intvolume":"      2822","page":"012125","publication_identifier":{"issn":["1742-6596"]},"title":"Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens","main_file_link":[{"open_access":"1","url":"https://iopscience.iop.org/article/10.1088/1742-6596/2822/1/012125"}],"doi":"10.1088/1742-6596/2822/1/012125","date_updated":"2026-01-05T07:58:55Z","publisher":"IOP Publishing","oa":"1","date_created":"2024-10-31T07:59:01Z","author":[{"id":"44026","full_name":"Friesen, Olga","last_name":"Friesen","first_name":"Olga"},{"orcid":"0000-0002-4393-268X","last_name":"Claes","full_name":"Claes, Leander","id":"11829","first_name":"Leander"},{"id":"38259","full_name":"Scheidemann, Claus","last_name":"Scheidemann","first_name":"Claus"},{"first_name":"Nadine","last_name":"Feldmann","full_name":"Feldmann, Nadine","id":"23082"},{"first_name":"Tobias","last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias"},{"first_name":"Bernd","last_name":"Henning","id":"213","full_name":"Henning, Bernd"}],"volume":2822,"status":"public","type":"conference","publication":"2023 International Congress on Ultrasonics, Beijing, China","language":[{"iso":"eng"}],"project":[{"name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)","_id":"245"}],"_id":"56834","user_id":"11829","department":[{"_id":"49"}]},{"year":"2024","citation":{"ieee":"K. Koch, O. Friesen, and L. Claes, <i>Randomised material parameter impedance dataset of piezoelectric rings</i>. Zenodo, 2024.","chicago":"Koch, Kevin, Olga Friesen, and Leander Claes. <i>Randomised Material Parameter Impedance Dataset of Piezoelectric Rings</i>. Zenodo, 2024. <a href=\"https://doi.org/10.5281/zenodo.13143680\">https://doi.org/10.5281/zenodo.13143680</a>.","ama":"Koch K, Friesen O, Claes L. <i>Randomised Material Parameter Impedance Dataset of Piezoelectric Rings</i>. Zenodo; 2024. doi:<a href=\"https://doi.org/10.5281/zenodo.13143680\">10.5281/zenodo.13143680</a>","short":"K. Koch, O. Friesen, L. Claes, Randomised Material Parameter Impedance Dataset of Piezoelectric Rings, Zenodo, 2024.","bibtex":"@book{Koch_Friesen_Claes_2024, title={Randomised material parameter impedance dataset of piezoelectric rings}, DOI={<a href=\"https://doi.org/10.5281/zenodo.13143680\">10.5281/zenodo.13143680</a>}, publisher={Zenodo}, author={Koch, Kevin and Friesen, Olga and Claes, Leander}, year={2024} }","mla":"Koch, Kevin, et al. <i>Randomised Material Parameter Impedance Dataset of Piezoelectric Rings</i>. Zenodo, 2024, doi:<a href=\"https://doi.org/10.5281/zenodo.13143680\">10.5281/zenodo.13143680</a>.","apa":"Koch, K., Friesen, O., &#38; Claes, L. (2024). <i>Randomised material parameter impedance dataset of piezoelectric rings</i>. Zenodo. <a href=\"https://doi.org/10.5281/zenodo.13143680\">https://doi.org/10.5281/zenodo.13143680</a>"},"title":"Randomised material parameter impedance dataset of piezoelectric rings","doi":"10.5281/zenodo.13143680","publisher":"Zenodo","date_updated":"2026-01-05T07:57:46Z","date_created":"2024-07-31T14:10:12Z","author":[{"first_name":"Kevin","last_name":"Koch","full_name":"Koch, Kevin"},{"first_name":"Olga","last_name":"Friesen","id":"44026","full_name":"Friesen, Olga"},{"first_name":"Leander","id":"11829","full_name":"Claes, Leander","last_name":"Claes","orcid":"0000-0002-4393-268X"}],"status":"public","type":"research_data","_id":"55470","project":[{"_id":"90","name":"ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)","_id":"245"}],"department":[{"_id":"49"}],"user_id":"11829"},{"date_updated":"2026-01-05T07:57:27Z","date_created":"2024-07-29T12:34:21Z","author":[{"orcid":"0000-0002-4393-268X","last_name":"Claes","full_name":"Claes, Leander","id":"11829","first_name":"Leander"},{"full_name":"Koch, Kevin","last_name":"Koch","first_name":"Kevin"},{"first_name":"Olga","id":"44026","full_name":"Friesen, Olga","last_name":"Friesen"},{"first_name":"Lars","id":"24769","full_name":"Meihost, Lars","last_name":"Meihost"}],"title":"Machine learning in inverse measurement problems: An application to piezoelectric material characterisation","year":"2024","place":"International Workshop on Piezoelectric Materials and Applications (IWPMA)","citation":{"mla":"Claes, Leander, et al. <i>Machine Learning in Inverse Measurement Problems: An Application to Piezoelectric Material Characterisation</i>. 2024.","bibtex":"@book{Claes_Koch_Friesen_Meihost_2024, place={International Workshop on Piezoelectric Materials and Applications (IWPMA)}, title={Machine learning in inverse measurement problems: An application to piezoelectric material characterisation}, author={Claes, Leander and Koch, Kevin and Friesen, Olga and Meihost, Lars}, year={2024} }","short":"L. Claes, K. Koch, O. Friesen, L. Meihost, Machine Learning in Inverse Measurement Problems: An Application to Piezoelectric Material Characterisation, International Workshop on Piezoelectric Materials and Applications (IWPMA), 2024.","apa":"Claes, L., Koch, K., Friesen, O., &#38; Meihost, L. (2024). <i>Machine learning in inverse measurement problems: An application to piezoelectric material characterisation</i>.","ama":"Claes L, Koch K, Friesen O, Meihost L. <i>Machine Learning in Inverse Measurement Problems: An Application to Piezoelectric Material Characterisation</i>.; 2024.","chicago":"Claes, Leander, Kevin Koch, Olga Friesen, and Lars Meihost. <i>Machine Learning in Inverse Measurement Problems: An Application to Piezoelectric Material Characterisation</i>. International Workshop on Piezoelectric Materials and Applications (IWPMA), 2024.","ieee":"L. Claes, K. Koch, O. Friesen, and L. Meihost, <i>Machine learning in inverse measurement problems: An application to piezoelectric material characterisation</i>. International Workshop on Piezoelectric Materials and Applications (IWPMA), 2024."},"_id":"55416","project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"department":[{"_id":"49"}],"user_id":"11829","language":[{"iso":"eng"}],"type":"misc","status":"public"},{"citation":{"apa":"Friesen, O., Claes, L., Feldmann, N., &#38; Henning, B. (2024). Estimation of piezoelectric material parameters of ring-shaped specimens. <i>Tm - Technisches Messen</i>. <a href=\"https://doi.org/10.1515/teme-2024-0107\">https://doi.org/10.1515/teme-2024-0107</a>","bibtex":"@article{Friesen_Claes_Feldmann_Henning_2024, title={Estimation of piezoelectric material parameters of ring-shaped specimens}, DOI={<a href=\"https://doi.org/10.1515/teme-2024-0107\">https://doi.org/10.1515/teme-2024-0107</a>}, journal={tm - Technisches Messen}, publisher={De Gruyter}, author={Friesen, Olga and Claes, Leander and Feldmann, Nadine and Henning, Bernd}, year={2024} }","short":"O. Friesen, L. Claes, N. Feldmann, B. Henning, Tm - Technisches Messen (2024).","mla":"Friesen, Olga, et al. “Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens.” <i>Tm - Technisches Messen</i>, De Gruyter, 2024, doi:<a href=\"https://doi.org/10.1515/teme-2024-0107\">https://doi.org/10.1515/teme-2024-0107</a>.","ama":"Friesen O, Claes L, Feldmann N, Henning B. Estimation of piezoelectric material parameters of ring-shaped specimens. <i>tm - Technisches Messen</i>. Published online 2024. doi:<a href=\"https://doi.org/10.1515/teme-2024-0107\">https://doi.org/10.1515/teme-2024-0107</a>","chicago":"Friesen, Olga, Leander Claes, Nadine Feldmann, and Bernd Henning. “Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens.” <i>Tm - Technisches Messen</i>, 2024. <a href=\"https://doi.org/10.1515/teme-2024-0107\">https://doi.org/10.1515/teme-2024-0107</a>.","ieee":"O. Friesen, L. Claes, N. Feldmann, and B. Henning, “Estimation of piezoelectric material parameters of ring-shaped specimens,” <i>tm - Technisches Messen</i>, 2024, doi: <a href=\"https://doi.org/10.1515/teme-2024-0107\">https://doi.org/10.1515/teme-2024-0107</a>."},"year":"2024","publication_status":"published","publication_identifier":{"issn":["2196-7113"]},"doi":"https://doi.org/10.1515/teme-2024-0107","title":"Estimation of piezoelectric material parameters of ring-shaped specimens","author":[{"first_name":"Olga","full_name":"Friesen, Olga","id":"44026","last_name":"Friesen"},{"full_name":"Claes, Leander","id":"11829","last_name":"Claes","orcid":"0000-0002-4393-268X","first_name":"Leander"},{"first_name":"Nadine","id":"23082","full_name":"Feldmann, Nadine","last_name":"Feldmann"},{"full_name":"Henning, Bernd","id":"213","last_name":"Henning","first_name":"Bernd"}],"date_created":"2024-10-29T09:07:00Z","date_updated":"2026-01-05T07:59:24Z","publisher":"De Gruyter","status":"public","abstract":[{"text":"The estimation of accurate piezoelectric material parameters is a fundamental prerequisite for simulation-driven design of piezoelectric actuators and sensors. Previous studies show that a full set of material parameters can be determined in an inverse procedure using a single disc-shaped specimen with an electrode structured for increased sensitivity with respect to all material parameters. However, in the case of high-power actuator applications, ring-shaped piezoelectric components are often employed, necessitating an adaptation of the previously developed method. The alteration in geometry introduces some advantages. Accordingly, there is no longer any requirement to modify the electrode structure in order to enhance sensitivity. The method to estimate the material parameters presented here consists of a total of three stages. An initial, approximate estimation of the material parameters is determined using analytical approximations for the resonance frequencies from the IEEE standard. These values are optimised in an inverse procedure that employs analytic expressions for the electrical impedance of piezoelectric rings as the forward model. Further refinement is achieved by using Finite Element (FE) simulations as the forward model again in an inverse procedure. The method is applied to electrical impedance measurement data, yielding material parameters for hard piezoelectric rings. The result shows a good agreement between the simulation and measurement results, indicating realistic material parameter values.","lang":"eng"}],"type":"journal_article","publication":"tm - Technisches Messen","language":[{"iso":"eng"}],"user_id":"11829","department":[{"_id":"49"}],"project":[{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"_id":"56777"},{"status":"public","type":"conference","publication":"Fortschritte der Akustik - DAGA 2023","language":[{"iso":"eng"}],"user_id":"11829","department":[{"_id":"49"}],"project":[{"_id":"105","name":"LaWaMoRe: Vermiedene Kreuzungen von Lamb-Wellenmoden in mehrlagigen Strukturen","grant_number":"449607253"}],"_id":"43233","citation":{"ama":"Zeipert H, von Germeten C, Friesen O, Claes L, Johannesmann S, Henning B. Investigation of change in dispersive behaviour during adhesive curing in multi-layered structures. In: <i>Fortschritte Der Akustik - DAGA 2023</i>. ; 2023:819-822.","chicago":"Zeipert, Henning, Christian von Germeten, Olga Friesen, Leander Claes, Sarah Johannesmann, and Bernd Henning. “Investigation of Change in Dispersive Behaviour during Adhesive Curing in Multi-Layered Structures.” In <i>Fortschritte Der Akustik - DAGA 2023</i>, 819–22, 2023.","ieee":"H. Zeipert, C. von Germeten, O. Friesen, L. Claes, S. Johannesmann, and B. Henning, “Investigation of change in dispersive behaviour during adhesive curing in multi-layered structures,” in <i>Fortschritte der Akustik - DAGA 2023</i>, Hamburg, 2023, pp. 819–822.","apa":"Zeipert, H., von Germeten, C., Friesen, O., Claes, L., Johannesmann, S., &#38; Henning, B. (2023). Investigation of change in dispersive behaviour during adhesive curing in multi-layered structures. <i>Fortschritte Der Akustik - DAGA 2023</i>, 819–822.","bibtex":"@inproceedings{Zeipert_von Germeten_Friesen_Claes_Johannesmann_Henning_2023, title={Investigation of change in dispersive behaviour during adhesive curing in multi-layered structures}, booktitle={Fortschritte der Akustik - DAGA 2023}, author={Zeipert, Henning and von Germeten, Christian and Friesen, Olga and Claes, Leander and Johannesmann, Sarah and Henning, Bernd}, year={2023}, pages={819–822} }","short":"H. Zeipert, C. von Germeten, O. Friesen, L. Claes, S. Johannesmann, B. Henning, in: Fortschritte Der Akustik - DAGA 2023, 2023, pp. 819–822.","mla":"Zeipert, Henning, et al. “Investigation of Change in Dispersive Behaviour during Adhesive Curing in Multi-Layered Structures.” <i>Fortschritte Der Akustik - DAGA 2023</i>, 2023, pp. 819–22."},"page":"819-822","year":"2023","conference":{"start_date":"2023-03-06","name":"DAGA 2023 - 49. Jahrestagung für Akustik","location":"Hamburg","end_date":"2023-03-09"},"title":"Investigation of change in dispersive behaviour during adhesive curing in multi-layered structures","author":[{"first_name":"Henning","id":"32580","full_name":"Zeipert, Henning","last_name":"Zeipert"},{"last_name":"von Germeten","full_name":"von Germeten, Christian","first_name":"Christian"},{"first_name":"Olga","last_name":"Friesen","full_name":"Friesen, Olga","id":"44026"},{"first_name":"Leander","full_name":"Claes, Leander","id":"11829","last_name":"Claes","orcid":"0000-0002-4393-268X"},{"first_name":"Sarah","full_name":"Johannesmann, Sarah","id":"29190","last_name":"Johannesmann"},{"last_name":"Henning","id":"213","full_name":"Henning, Bernd","first_name":"Bernd"}],"date_created":"2023-03-30T14:10:39Z","date_updated":"2023-04-19T09:18:30Z"},{"ddc":["620"],"file_date_updated":"2026-03-02T10:59:13Z","language":[{"iso":"eng"}],"project":[{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"_id":"51117","user_id":"210","department":[{"_id":"151"},{"_id":"49"}],"file":[{"date_created":"2026-01-30T07:15:31Z","creator":"hemsel","date_updated":"2026-03-02T10:59:13Z","file_name":"Sch23_ICAE_2023.pdf","file_id":"63815","access_level":"open_access","file_size":608243,"content_type":"application/pdf","relation":"main_file"}],"status":"public","type":"conference","title":"Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics","conference":{"end_date":"2023-11-03","location":"Jeju, Korea","name":"7th International Conference on Advanced Electromaterials (ICAE 2023)","start_date":"2023-10-31"},"oa":"1","date_updated":"2026-03-02T10:59:13Z","author":[{"full_name":"Scheidemann, Claus","id":"38259","last_name":"Scheidemann","first_name":"Claus"},{"first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210"},{"id":"44026","full_name":"Friesen, Olga","last_name":"Friesen","first_name":"Olga"},{"full_name":"Claes, Leander","id":"11829","last_name":"Claes","orcid":"0000-0002-4393-268X","first_name":"Leander"},{"first_name":"Walter","id":"21220","full_name":"Sextro, Walter","last_name":"Sextro"}],"date_created":"2024-02-01T15:55:44Z","year":"2023","citation":{"bibtex":"@inproceedings{Scheidemann_Hemsel_Friesen_Claes_Sextro_2023, title={Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics}, author={Scheidemann, Claus and Hemsel, Tobias and Friesen, Olga and Claes, Leander and Sextro, Walter}, year={2023} }","short":"C. Scheidemann, T. Hemsel, O. Friesen, L. Claes, W. Sextro, in: 2023.","mla":"Scheidemann, Claus, et al. <i>Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics</i>. 2023.","apa":"Scheidemann, C., Hemsel, T., Friesen, O., Claes, L., &#38; Sextro, W. (2023). <i>Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics</i>. 7th International Conference on Advanced Electromaterials (ICAE 2023), Jeju, Korea.","ama":"Scheidemann C, Hemsel T, Friesen O, Claes L, Sextro W. Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics. In: ; 2023.","ieee":"C. Scheidemann, T. Hemsel, O. Friesen, L. Claes, and W. Sextro, “Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics,” presented at the 7th International Conference on Advanced Electromaterials (ICAE 2023), Jeju, Korea, 2023.","chicago":"Scheidemann, Claus, Tobias Hemsel, Olga Friesen, Leander Claes, and Walter Sextro. “Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics,” 2023."},"has_accepted_license":"1"},{"status":"public","type":"misc","language":[{"iso":"eng"}],"department":[{"_id":"49"}],"user_id":"11829","_id":"6558","project":[{"name":"ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums","_id":"90"},{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"citation":{"apa":"Friesen, O., Claes, L., Feldmann, N., &#38; Henning, B. (2022). <i>Estimation of piezoelectric material parameters of ring-shaped specimens</i>.","short":"O. Friesen, L. Claes, N. Feldmann, B. Henning, Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens, International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), 2022.","mla":"Friesen, Olga, et al. <i>Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens</i>. 2022.","bibtex":"@book{Friesen_Claes_Feldmann_Henning_2022, place={International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA)}, title={Estimation of piezoelectric material parameters of ring-shaped specimens}, author={Friesen, Olga and Claes, Leander and Feldmann, Nadine and Henning, Bernd}, year={2022} }","ieee":"O. Friesen, L. Claes, N. Feldmann, and B. Henning, <i>Estimation of piezoelectric material parameters of ring-shaped specimens</i>. International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), 2022.","chicago":"Friesen, Olga, Leander Claes, Nadine Feldmann, and Bernd Henning. <i>Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens</i>. International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), 2022.","ama":"Friesen O, Claes L, Feldmann N, Henning B. <i>Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens</i>.; 2022."},"year":"2022","place":"International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA)","title":"Estimation of piezoelectric material parameters of ring-shaped specimens","date_created":"2019-01-09T14:37:05Z","author":[{"last_name":"Friesen","id":"44026","full_name":"Friesen, Olga","first_name":"Olga"},{"full_name":"Claes, Leander","id":"11829","orcid":"0000-0002-4393-268X","last_name":"Claes","first_name":"Leander"},{"first_name":"Nadine","last_name":"Feldmann","full_name":"Feldmann, Nadine","id":"23082"},{"last_name":"Henning","full_name":"Henning, Bernd","id":"213","first_name":"Bernd"}],"date_updated":"2026-01-05T08:02:08Z"}]