[{"status":"public","type":"journal_article","project":[{"_id":"89","name":"Vollständige Bestimmung der akustischen Materialparameter von Polymeren"}],"_id":"63800","user_id":"32616","department":[{"_id":"49"}],"citation":{"apa":"Itner, D., Dreiling, D., Gravenkamp, H., Henning, B., &#38; Birk, C. (2026). A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses. <i>Mechanical Systems and Signal Processing</i>, <i>247</i>, 113904. <a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>","bibtex":"@article{Itner_Dreiling_Gravenkamp_Henning_Birk_2026, title={A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses}, volume={247}, DOI={<a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>}, journal={Mechanical Systems and Signal Processing}, author={Itner, Dominik and Dreiling, Dmitrij and Gravenkamp, Hauke and Henning, Bernd and Birk, Carolin}, year={2026}, pages={113904} }","mla":"Itner, Dominik, et al. “A Modified Levenberg–Marquardt Method for Estimating the Elastic Material Parameters of Polymer Waveguides Using Residuals between Autocorrelated Frequency Responses.” <i>Mechanical Systems and Signal Processing</i>, vol. 247, 2026, p. 113904, doi:<a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>.","short":"D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, C. Birk, Mechanical Systems and Signal Processing 247 (2026) 113904.","ama":"Itner D, Dreiling D, Gravenkamp H, Henning B, Birk C. A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses. <i>Mechanical Systems and Signal Processing</i>. 2026;247:113904. doi:<a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>","chicago":"Itner, Dominik, Dmitrij Dreiling, Hauke Gravenkamp, Bernd Henning, and Carolin Birk. “A Modified Levenberg–Marquardt Method for Estimating the Elastic Material Parameters of Polymer Waveguides Using Residuals between Autocorrelated Frequency Responses.” <i>Mechanical Systems and Signal Processing</i> 247 (2026): 113904. <a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>.","ieee":"D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, and C. Birk, “A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses,” <i>Mechanical Systems and Signal Processing</i>, vol. 247, p. 113904, 2026, doi: <a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>."},"intvolume":"       247","page":"113904","publication_status":"published","publication_identifier":{"issn":["0888-3270"]},"main_file_link":[{"open_access":"1","url":"https://www.sciencedirect.com/science/article/pii/S0888327026000610/pdfft?md5=16e8493b44527f4ab0a6d13f634a01c3&pid=1-s2.0-S0888327026000610-main.pdf"}],"doi":"https://doi.org/10.1016/j.ymssp.2026.113904","date_updated":"2026-02-02T12:44:47Z","oa":"1","author":[{"first_name":"Dominik","last_name":"Itner","full_name":"Itner, Dominik"},{"first_name":"Dmitrij","last_name":"Dreiling","full_name":"Dreiling, Dmitrij","id":"32616"},{"full_name":"Gravenkamp, Hauke","last_name":"Gravenkamp","first_name":"Hauke"},{"first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd","id":"213"},{"first_name":"Carolin","full_name":"Birk, Carolin","last_name":"Birk"}],"volume":247,"abstract":[{"text":"In this contribution, we address the estimation of the frequency-dependent elastic parameters of polymers in the ultrasound range, which is formulated as an inverse problem. This inverse problem is implemented as a nonlinear regression-type optimization problem, in which the simulation signals are fitted to the measurement signals. These signals consist of displacement responses in waveguides, focusing on hollow cylindrical geometries to enhance the simulation efficiency. To accelerate the optimization and reduce the number of model evaluations and wait times, we propose two novel methods. First, we introduce an adaptation of the Levenberg–Marquardt method derived from a geometrical interpretation of the least-squares optimization problem. Second, we introduce an improved objective function based on the autocorrelated envelopes of the measurement and simulation signals. Given that this study primarily relies on simulation data to quantify optimization convergence, we aggregate the expected ranges of realistic material parameters and derive their distributions to ensure the reproducibility of optimizations with proper measurements. We demonstrate the effectiveness of our objective function modification and step adaptation for various materials with isotropic material symmetry by comparing them with the Broyden–Fletcher–Goldfarb–Shanno method. In all cases, our method reduces the total number of model evaluations, thereby shortening the time to identify the material parameters.","lang":"eng"}],"publication":"Mechanical Systems and Signal Processing","keyword":["Material parameter estimation","Waveguide","Nonlinear optimization","Inverse problem","Least squares"],"language":[{"iso":"eng"}],"year":"2026","title":"A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses","date_created":"2026-01-29T08:53:42Z"},{"publication_identifier":{"issn":["0930-777X","2195-8602"]},"quality_controlled":"1","publication_status":"published","year":"2026","citation":{"ieee":"E. Moritzer <i>et al.</i>, “Fiber-matrix adhesion in glass fiber reinforced thermoplastic composite laminates and its effect on mechanical properties,” <i>International Polymer Processing</i>, 2026, doi: <a href=\"https://doi.org/10.1515/ipp-2025-0077\">10.1515/ipp-2025-0077</a>.","chicago":"Moritzer, Elmar, Philipp Brandes, Maurice Wittler, Leander Claes, Mareen Wippermann, Markus Haag, Thomas Gries, and Bernd Henning. “Fiber-Matrix Adhesion in Glass Fiber Reinforced Thermoplastic Composite Laminates and Its Effect on Mechanical Properties.” <i>International Polymer Processing</i>, 2026. <a href=\"https://doi.org/10.1515/ipp-2025-0077\">https://doi.org/10.1515/ipp-2025-0077</a>.","ama":"Moritzer E, Brandes P, Wittler M, et al. Fiber-matrix adhesion in glass fiber reinforced thermoplastic composite laminates and its effect on mechanical properties. <i>International Polymer Processing</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1515/ipp-2025-0077\">10.1515/ipp-2025-0077</a>","apa":"Moritzer, E., Brandes, P., Wittler, M., Claes, L., Wippermann, M., Haag, M., Gries, T., &#38; Henning, B. (2026). Fiber-matrix adhesion in glass fiber reinforced thermoplastic composite laminates and its effect on mechanical properties. <i>International Polymer Processing</i>. <a href=\"https://doi.org/10.1515/ipp-2025-0077\">https://doi.org/10.1515/ipp-2025-0077</a>","bibtex":"@article{Moritzer_Brandes_Wittler_Claes_Wippermann_Haag_Gries_Henning_2026, title={Fiber-matrix adhesion in glass fiber reinforced thermoplastic composite laminates and its effect on mechanical properties}, DOI={<a href=\"https://doi.org/10.1515/ipp-2025-0077\">10.1515/ipp-2025-0077</a>}, journal={International Polymer Processing}, publisher={Walter de Gruyter GmbH}, author={Moritzer, Elmar and Brandes, Philipp and Wittler, Maurice and Claes, Leander and Wippermann, Mareen and Haag, Markus and Gries, Thomas and Henning, Bernd}, year={2026} }","mla":"Moritzer, Elmar, et al. “Fiber-Matrix Adhesion in Glass Fiber Reinforced Thermoplastic Composite Laminates and Its Effect on Mechanical Properties.” <i>International Polymer Processing</i>, Walter de Gruyter GmbH, 2026, doi:<a href=\"https://doi.org/10.1515/ipp-2025-0077\">10.1515/ipp-2025-0077</a>.","short":"E. Moritzer, P. Brandes, M. Wittler, L. Claes, M. Wippermann, M. Haag, T. Gries, B. Henning, International Polymer Processing (2026)."},"publisher":"Walter de Gruyter GmbH","date_updated":"2026-03-30T14:15:31Z","author":[{"first_name":"Elmar","full_name":"Moritzer, Elmar","id":"20531","last_name":"Moritzer"},{"last_name":"Brandes","orcid":"0009-0005-9707-0885","full_name":"Brandes, Philipp","id":"70091","first_name":"Philipp"},{"full_name":"Wittler, Maurice","id":"76071","last_name":"Wittler","first_name":"Maurice"},{"orcid":"0000-0002-4393-268X","last_name":"Claes","id":"11829","full_name":"Claes, Leander","first_name":"Leander"},{"full_name":"Wippermann, Mareen","id":"74624","last_name":"Wippermann","first_name":"Mareen"},{"first_name":"Markus","last_name":"Haag","full_name":"Haag, Markus"},{"last_name":"Gries","full_name":"Gries, Thomas","first_name":"Thomas"},{"first_name":"Bernd","id":"213","full_name":"Henning, Bernd","last_name":"Henning"}],"date_created":"2026-03-30T14:14:33Z","title":"Fiber-matrix adhesion in glass fiber reinforced thermoplastic composite laminates and its effect on mechanical properties","doi":"10.1515/ipp-2025-0077","publication":"International Polymer Processing","type":"journal_article","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title>\r\n                  <jats:p>With the growing demand for lightweight solutions to reduce emissions, especially in the transportation, automotive and aerospace sectors, recyclable, continuous fiber-reinforced plastic composite laminates with a thermoplastic matrix are of rising interest. To achieve their maximum mechanical properties, the fiber-matrix adhesion (FMA) is critical. In this work, continuous fiber-reinforced thermoplastic laminates (CFRTPL) with a polypropylene (PP) matrix and twill woven glass fiber fabrics are produced by film stacking. The films used contain different amounts of maleic-anhydride-grafted PP (MA-g-PP) as a coupling agent to produce CFRTPL of different mechanical strengths. To analyze the FMA, the CFRTPL are subjected to Charpy-impact and tensile tests. Additionally, single fiber pull-out tests (SFPT) are conducted to further investigate the effect of MA-g-PP on the FMA. The results of the SFPT show an improvement in apparent interfacial shear strength (AIFSS) when the MA-g-PP content is increased, which can be attributed to an increase in FMA. However, the research shows that MA-g-PP has a low impact on the mechanical properties if the force is applied parallel to the warp and weft threads during tensile testing and the results of the Charpy-impact testing suffer from embrittlement of the matrix material. Subsequently, the results of this study are compared to three-point flexural tests conducted in a previous study. It can be concluded that tensile and impact tests are not suited to investigate FMA on a macroscopic scale, while SFPT and flexural tests provide a better alternative.</jats:p>"}],"status":"public","_id":"65242","department":[{"_id":"9"},{"_id":"321"},{"_id":"367"},{"_id":"34"},{"_id":"49"}],"user_id":"59363","language":[{"iso":"eng"}]},{"main_file_link":[{"url":"https://oa.tib.eu/renate/handle/123456789/34534","open_access":"1"}],"doi":"https://doi.org/10.34657/33602","title":"Vollständige Bestimmung der akustischen Materialparameter von Polymeren II","author":[{"first_name":"Dmitrij","last_name":"Dreiling","full_name":"Dreiling, Dmitrij","id":"32616"},{"full_name":"Itner, Dominik","last_name":"Itner","first_name":"Dominik"},{"full_name":"Birk, Carolin","last_name":"Birk","first_name":"Carolin"},{"first_name":"Hauke","last_name":"Gravenkamp","full_name":"Gravenkamp, Hauke"},{"last_name":"Henning","id":"213","full_name":"Henning, Bernd","first_name":"Bernd"}],"date_created":"2026-04-14T06:43:03Z","date_updated":"2026-04-17T07:18:16Z","publisher":"Hannover : Technische Informationsbibliothek","oa":"1","citation":{"ama":"Dreiling D, Itner D, Birk C, Gravenkamp H, Henning B. <i>Vollständige Bestimmung der akustischen Materialparameter von Polymeren II</i>. Hannover : Technische Informationsbibliothek; 2026. doi:<a href=\"https://doi.org/10.34657/33602\">https://doi.org/10.34657/33602</a>","chicago":"Dreiling, Dmitrij, Dominik Itner, Carolin Birk, Hauke Gravenkamp, and Bernd Henning. <i>Vollständige Bestimmung der akustischen Materialparameter von Polymeren II</i>. Hannover : Technische Informationsbibliothek, 2026. <a href=\"https://doi.org/10.34657/33602\">https://doi.org/10.34657/33602</a>.","ieee":"D. Dreiling, D. Itner, C. Birk, H. Gravenkamp, and B. Henning, <i>Vollständige Bestimmung der akustischen Materialparameter von Polymeren II</i>. Hannover : Technische Informationsbibliothek, 2026.","bibtex":"@book{Dreiling_Itner_Birk_Gravenkamp_Henning_2026, title={Vollständige Bestimmung der akustischen Materialparameter von Polymeren II}, DOI={<a href=\"https://doi.org/10.34657/33602\">https://doi.org/10.34657/33602</a>}, publisher={Hannover : Technische Informationsbibliothek}, author={Dreiling, Dmitrij and Itner, Dominik and Birk, Carolin and Gravenkamp, Hauke and Henning, Bernd}, year={2026} }","short":"D. Dreiling, D. Itner, C. Birk, H. Gravenkamp, B. Henning, Vollständige Bestimmung der akustischen Materialparameter von Polymeren II, Hannover : Technische Informationsbibliothek, 2026.","mla":"Dreiling, Dmitrij, et al. <i>Vollständige Bestimmung der akustischen Materialparameter von Polymeren II</i>. Hannover : Technische Informationsbibliothek, 2026, doi:<a href=\"https://doi.org/10.34657/33602\">https://doi.org/10.34657/33602</a>.","apa":"Dreiling, D., Itner, D., Birk, C., Gravenkamp, H., &#38; Henning, B. (2026). <i>Vollständige Bestimmung der akustischen Materialparameter von Polymeren II</i>. Hannover : Technische Informationsbibliothek. <a href=\"https://doi.org/10.34657/33602\">https://doi.org/10.34657/33602</a>"},"page":"12","year":"2026","publication_status":"published","language":[{"iso":"ger"}],"keyword":["Materialcharakterisierung","Polymer","Inverses Problem","Ultraschall","Optimierung"],"user_id":"32616","department":[{"_id":"49"}],"project":[{"_id":"89","name":"Vollständige Bestimmung der akustischen Materialparameter von Polymeren"}],"_id":"65426","status":"public","abstract":[{"lang":"ger","text":"In diesem Forschungsprojekt wurde ein Messverfahren zur Bestimmung akustischer Materialparameter von Polymeren im Ultraschallfrequenzbereich entwickelt. Das Verfahrens sollte, die üblichen standardisierten Prüfmethoden erweitern, die bislang primär im quasistatischen oder niederfrequenten Bereich eingesetzt wurden. Im Gegensatz zu bestehenden Verfahren wie dem Zeitstandversuch oder der Dynamisch Mechanischen Analyse (DMA) nach [DIN6721] sollte die neue Methode eine nicht-invasive Charakterisierung der (visko-)elastischen Materialparameter im Frequenzbereich von 0,75 MHz bis 2,5 MHz ermöglichen. Das entwickelte Ultraschallmesssystem arbeitet nach dem Puls Echo-Prinzip und kann eine räumlich segmentierte, ringförmige Anregung erzeugen. Die Bestimmung der frequenzabhängigen Materialparameter geschieht hierbei über ein inverses Verfahren. Die Ergebnisse des Projekts zeigen, dass die Segmentierung der Anregung, die Geometrie der Probe sowie das Puls-Echo-Messprinzip die Messergebnisse sowie die Sensitivität gegenüber Scherparametern wesentlich beeinflussen. Im Rahmen des Projektes wurde auch eine statistische Auswertung des Optimierungsverfahrens hinsichtlich transversal-isotroper Materialsymmetrie mit Rayleigh-Dämpfung durchgeführt. Die Ergebnisse zeigen, dass das entwickelte Verfahren gute Konvergenzeigenschaften aufweist und sich durch verbesserte Robustheit auszeichnet."},{"text":"This research project involved developing a measurement method to determine the acoustic material parameters of polymers within the ultrasonic frequency range. The aim of this method is to extend the range of standardised tests that operate in the quasi-static or low-frequency range. In contrast to existing methods such as the creep test or dynamic mechanical analysis according to [DIN6721], the developed method is capable of non-invasive characterisation of the (visco-)elastic material parameters in the frequency range of 0,75 MHz bis 2,5 MHz. The developed ultrasonic measurement setup utilises the pulse-echo principle and can generate a spatially segmented, ring-shaped excitation. The frequency-dependent material parameters are determined using an inverse method. The final results of the project show that the segmentation of the excitation, the geometry of the specimen and the pulse-echo measurement principle have a significant influence on the measurement results and the sensitivity to shear movements. As part of the project, a statistical evaluation of the optimisation process was also carried out with regard to transversely isotropic material symmetry with Rayleigh damping. The results show that the developed process has good convergence properties and is characterised by improved robustness.","lang":"eng"}],"type":"report","report_number":"409779252"},{"project":[{"grant_number":"495847374","_id":"157","name":"FaMOUS: Ein ultraschallbasiertes Messverfahren unter Berücksichtigung viskoelastischer Eigenschaften zur Charakterisierung der Faser-Matrix-Haftung bei Organoblechen sowie deren realitätsnahe Modellierung"}],"_id":"59683","user_id":"11829","department":[{"_id":"49"},{"_id":"147"}],"language":[{"iso":"eng"}],"type":"conference","abstract":[{"text":"Woven fibre-reinforced polymers are used in a variety of application, especially where a low mass to stiffness ratio is required. Of paramount importance for the tailored mechanical properties these composite materials exhibit is the type and geometry of the fibre weave. Especially continuous fibre-reinforced thermoplastic composites are fabricated as laminates and subsequently exposed to forming processes which alter the geometry of the fibres unit cell and thus the local mechanical properties of the material. An approach utilising broadband ultrasonic waves is proposed to non-destructively determine the geometry of the unit cell of the weave.\r\n\r\nThe dispersive behaviour of woven fibre-reinforced sheets is described in accordance with the Flouquet-Bloch theorem as a phononic crystal. In order to develop a model for a description of these periodically structured waveguides, the smallest repeating unit of the wave is modelled with periodic boundary conditions. The resulting dispersion diagram exhibits similarities to that of a homogeneous plate, but additionally displays a periodicity in the wavenumber regime, which correspond with the size of the unit cell. Experimental studies of the dispersive behaviour of acoustic waves in woven fibre-reinforced samples also show a periodicity in the wavenumber regime, enabling a measurement procedure of the unit cell geometry.","lang":"eng"}],"status":"public","oa":"1","date_updated":"2025-04-25T08:58:02Z","author":[{"last_name":"Wippermann","id":"74624","full_name":"Wippermann, Mareen","first_name":"Mareen"},{"first_name":"Leander","id":"11829","full_name":"Claes, Leander","last_name":"Claes","orcid":"0000-0002-4393-268X"},{"last_name":"Brandes","id":"70091","full_name":"Brandes, Philipp","first_name":"Philipp"},{"id":"20531","full_name":"Moritzer, Elmar","last_name":"Moritzer","first_name":"Elmar"},{"first_name":"Bernd","full_name":"Henning, Bernd","id":"213","last_name":"Henning"}],"date_created":"2025-04-25T06:46:31Z","title":"Determination of the unit cell geometry in fibre-reinforced polymer sheets using guided acoustic waves","main_file_link":[{"open_access":"1"}],"conference":{"name":"DAS | DAGA 2025 - 51st Annual Meeting on Acoustics","start_date":"2025-03-17","end_date":"2025-03-20","location":"Copenhagen"},"doi":"10.71568/DASDAGA2025.116","year":"2025","citation":{"short":"M. Wippermann, L. Claes, P. Brandes, E. Moritzer, B. Henning, in: 2025.","bibtex":"@inproceedings{Wippermann_Claes_Brandes_Moritzer_Henning_2025, title={Determination of the unit cell geometry in fibre-reinforced polymer sheets using guided acoustic waves}, DOI={<a href=\"https://doi.org/10.71568/DASDAGA2025.116\">10.71568/DASDAGA2025.116</a>}, author={Wippermann, Mareen and Claes, Leander and Brandes, Philipp and Moritzer, Elmar and Henning, Bernd}, year={2025} }","mla":"Wippermann, Mareen, et al. <i>Determination of the Unit Cell Geometry in Fibre-Reinforced Polymer Sheets Using Guided Acoustic Waves</i>. 2025, doi:<a href=\"https://doi.org/10.71568/DASDAGA2025.116\">10.71568/DASDAGA2025.116</a>.","apa":"Wippermann, M., Claes, L., Brandes, P., Moritzer, E., &#38; Henning, B. (2025). <i>Determination of the unit cell geometry in fibre-reinforced polymer sheets using guided acoustic waves</i>. DAS | DAGA 2025 - 51st Annual Meeting on Acoustics, Copenhagen. <a href=\"https://doi.org/10.71568/DASDAGA2025.116\">https://doi.org/10.71568/DASDAGA2025.116</a>","chicago":"Wippermann, Mareen, Leander Claes, Philipp Brandes, Elmar Moritzer, and Bernd Henning. “Determination of the Unit Cell Geometry in Fibre-Reinforced Polymer Sheets Using Guided Acoustic Waves,” 2025. <a href=\"https://doi.org/10.71568/DASDAGA2025.116\">https://doi.org/10.71568/DASDAGA2025.116</a>.","ieee":"M. Wippermann, L. Claes, P. Brandes, E. Moritzer, and B. Henning, “Determination of the unit cell geometry in fibre-reinforced polymer sheets using guided acoustic waves,” presented at the DAS | DAGA 2025 - 51st Annual Meeting on Acoustics, Copenhagen, 2025, doi: <a href=\"https://doi.org/10.71568/DASDAGA2025.116\">10.71568/DASDAGA2025.116</a>.","ama":"Wippermann M, Claes L, Brandes P, Moritzer E, Henning B. Determination of the unit cell geometry in fibre-reinforced polymer sheets using guided acoustic waves. In: ; 2025. doi:<a href=\"https://doi.org/10.71568/DASDAGA2025.116\">10.71568/DASDAGA2025.116</a>"}},{"title":"Assessment of Fibre-Matrix Adhesion in Reinforced Polymers by Modal Damping of Guided Acoustic Waves","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/DASDAGA2025.052","main_file_link":[{"open_access":"1"}],"date_updated":"2025-04-25T08:50:11Z","oa":"1","date_created":"2025-04-25T08:48:10Z","author":[{"first_name":"Leander","orcid":"0000-0002-4393-268X","last_name":"Claes","id":"11829","full_name":"Claes, Leander"},{"first_name":"Henning","full_name":"Zeipert, Henning","id":"32580","last_name":"Zeipert"},{"id":"70091","full_name":"Brandes, Philipp","last_name":"Brandes","first_name":"Philipp"},{"id":"20531","full_name":"Moritzer, Elmar","last_name":"Moritzer","first_name":"Elmar"},{"first_name":"Bernd","id":"213","full_name":"Henning, Bernd","last_name":"Henning"}],"year":"2025","citation":{"ama":"Claes L, Zeipert H, Brandes P, Moritzer E, Henning B. Assessment of Fibre-Matrix Adhesion in Reinforced Polymers by Modal Damping of Guided Acoustic Waves. In: ; 2025. doi:<a href=\"https://doi.org/10.71568/DASDAGA2025.052\">10.71568/DASDAGA2025.052</a>","chicago":"Claes, Leander, Henning Zeipert, Philipp Brandes, Elmar Moritzer, and Bernd Henning. “Assessment of Fibre-Matrix Adhesion in Reinforced Polymers by Modal Damping of Guided Acoustic Waves,” 2025. <a href=\"https://doi.org/10.71568/DASDAGA2025.052\">https://doi.org/10.71568/DASDAGA2025.052</a>.","ieee":"L. Claes, H. Zeipert, P. Brandes, E. Moritzer, and B. Henning, “Assessment of Fibre-Matrix Adhesion in Reinforced Polymers by Modal Damping of Guided Acoustic Waves,” presented at the DAS | DAGA 2025 - 51st Annual Meeting on Acoustics, Copenhagen, 2025, doi: <a href=\"https://doi.org/10.71568/DASDAGA2025.052\">10.71568/DASDAGA2025.052</a>.","apa":"Claes, L., Zeipert, H., Brandes, P., Moritzer, E., &#38; Henning, B. (2025). <i>Assessment of Fibre-Matrix Adhesion in Reinforced Polymers by Modal Damping of Guided Acoustic Waves</i>. DAS | DAGA 2025 - 51st Annual Meeting on Acoustics, Copenhagen. <a href=\"https://doi.org/10.71568/DASDAGA2025.052\">https://doi.org/10.71568/DASDAGA2025.052</a>","short":"L. Claes, H. Zeipert, P. Brandes, E. Moritzer, B. Henning, in: 2025.","bibtex":"@inproceedings{Claes_Zeipert_Brandes_Moritzer_Henning_2025, title={Assessment of Fibre-Matrix Adhesion in Reinforced Polymers by Modal Damping of Guided Acoustic Waves}, DOI={<a href=\"https://doi.org/10.71568/DASDAGA2025.052\">10.71568/DASDAGA2025.052</a>}, author={Claes, Leander and Zeipert, Henning and Brandes, Philipp and Moritzer, Elmar and Henning, Bernd}, year={2025} }","mla":"Claes, Leander, et al. <i>Assessment of Fibre-Matrix Adhesion in Reinforced Polymers by Modal Damping of Guided Acoustic Waves</i>. 2025, doi:<a href=\"https://doi.org/10.71568/DASDAGA2025.052\">10.71568/DASDAGA2025.052</a>."},"language":[{"iso":"eng"}],"_id":"59688","project":[{"grant_number":"495847374","name":"FaMOUS: Ein ultraschallbasiertes Messverfahren unter Berücksichtigung viskoelastischer Eigenschaften zur Charakterisierung der Faser-Matrix-Haftung bei Organoblechen sowie deren realitätsnahe Modellierung","_id":"157"}],"department":[{"_id":"49"},{"_id":"147"}],"user_id":"11829","status":"public","type":"conference"},{"date_created":"2025-05-19T13:30:39Z","publisher":"IOP Publishing","title":"Increasing the sensitivity of ultrasonic transmission measurements for elastic material parameter estimation","quality_controlled":"1","year":"2025","language":[{"iso":"eng"}],"keyword":["Sensitivity analysis","Ultrasonic transducer","Guided waves","Polymers","Gram determinant"],"publication":"Measurement Science and Technology","abstract":[{"text":"<jats:title>Abstract</jats:title>\r\n               <jats:p>Ultrasonic transmission measurements can be used for material characterization, as the propagation time of sound waves and thus their velocity depends on the elastic material parameters. Measurement results for the elastic material parameters are acquired non-destructively using ultrasonic transmission measurements of hollow cylindrical polymer specimens. To determine the material parameters, an inverse approach is used comparing measurements with simulated data. Previous studies show that the procedure exhibits low sensitivity with respect to the shear parameters of the material. In order to increase the sensitivity, we propose to apply a spatially annular excitation on the base of the specimen. As a measure to analyse the sensitivities with respect to all parameters and their linear independence, we observe the volume of the parallelotope of the sensitivity vectors. Here, a scaled boundary finite element formulation of wave propagation in the specimen is expanded to yield derivative information directly, and a sensitivity analysis can be carried out efficiently. Finally, the results of this sensitivity analysis with regard to the annular excitation are also applied to the measurement setup.</jats:p>","lang":"eng"}],"author":[{"first_name":"Dmitrij","last_name":"Dreiling","id":"32616","full_name":"Dreiling, Dmitrij"},{"first_name":"Dominik","last_name":"Itner","full_name":"Itner, Dominik"},{"last_name":"Gravenkamp","full_name":"Gravenkamp, Hauke","first_name":"Hauke"},{"first_name":"Leander","full_name":"Claes, Leander","id":"11829","orcid":"0000-0002-4393-268X","last_name":"Claes"},{"last_name":"Birk","full_name":"Birk, Carolin","first_name":"Carolin"},{"last_name":"Henning","full_name":"Henning, Bernd","id":"213","first_name":"Bernd"}],"volume":36,"oa":"1","date_updated":"2025-05-27T15:03:38Z","main_file_link":[{"url":"https://iopscience.iop.org/article/10.1088/1361-6501/add9b6","open_access":"1"}],"doi":"10.1088/1361-6501/add9b6","publication_status":"published","publication_identifier":{"issn":["0957-0233","1361-6501"]},"citation":{"ama":"Dreiling D, Itner D, Gravenkamp H, Claes L, Birk C, Henning B. Increasing the sensitivity of ultrasonic transmission measurements for elastic material parameter estimation. <i>Measurement Science and Technology</i>. 2025;36. doi:<a href=\"https://doi.org/10.1088/1361-6501/add9b6\">10.1088/1361-6501/add9b6</a>","ieee":"D. Dreiling, D. Itner, H. Gravenkamp, L. Claes, C. Birk, and B. Henning, “Increasing the sensitivity of ultrasonic transmission measurements for elastic material parameter estimation,” <i>Measurement Science and Technology</i>, vol. 36, Art. no. 6, 2025, doi: <a href=\"https://doi.org/10.1088/1361-6501/add9b6\">10.1088/1361-6501/add9b6</a>.","chicago":"Dreiling, Dmitrij, Dominik Itner, Hauke Gravenkamp, Leander Claes, Carolin Birk, and Bernd Henning. “Increasing the Sensitivity of Ultrasonic Transmission Measurements for Elastic Material Parameter Estimation.” <i>Measurement Science and Technology</i> 36 (2025). <a href=\"https://doi.org/10.1088/1361-6501/add9b6\">https://doi.org/10.1088/1361-6501/add9b6</a>.","apa":"Dreiling, D., Itner, D., Gravenkamp, H., Claes, L., Birk, C., &#38; Henning, B. (2025). Increasing the sensitivity of ultrasonic transmission measurements for elastic material parameter estimation. <i>Measurement Science and Technology</i>, <i>36</i>, Article 6. <a href=\"https://doi.org/10.1088/1361-6501/add9b6\">https://doi.org/10.1088/1361-6501/add9b6</a>","short":"D. Dreiling, D. Itner, H. Gravenkamp, L. Claes, C. Birk, B. Henning, Measurement Science and Technology 36 (2025).","mla":"Dreiling, Dmitrij, et al. “Increasing the Sensitivity of Ultrasonic Transmission Measurements for Elastic Material Parameter Estimation.” <i>Measurement Science and Technology</i>, vol. 36, 6, IOP Publishing, 2025, doi:<a href=\"https://doi.org/10.1088/1361-6501/add9b6\">10.1088/1361-6501/add9b6</a>.","bibtex":"@article{Dreiling_Itner_Gravenkamp_Claes_Birk_Henning_2025, title={Increasing the sensitivity of ultrasonic transmission measurements for elastic material parameter estimation}, volume={36}, DOI={<a href=\"https://doi.org/10.1088/1361-6501/add9b6\">10.1088/1361-6501/add9b6</a>}, number={6}, journal={Measurement Science and Technology}, publisher={IOP Publishing}, author={Dreiling, Dmitrij and Itner, Dominik and Gravenkamp, Hauke and Claes, Leander and Birk, Carolin and Henning, Bernd}, year={2025} }"},"intvolume":"        36","user_id":"32616","department":[{"_id":"49"}],"project":[{"grant_number":"409779252","name":"VaMP: Vollständige Bestimmung der akustischen Materialparameter von Polymeren","_id":"89"}],"_id":"59995","funded_apc":"1","article_type":"original","article_number":"6","type":"journal_article","status":"public"},{"publisher":"AMA Service GmbH","date_updated":"2026-01-13T13:00:31Z","author":[{"first_name":"Leander","full_name":"Claes, Leander","id":"11829","orcid":"0000-0002-4393-268X","last_name":"Claes"},{"full_name":"Hölscher, Jonas","id":"73952","last_name":"Hölscher","first_name":"Jonas"},{"id":"44026","full_name":"Friesen, Olga","last_name":"Friesen","first_name":"Olga"},{"first_name":"Claus","last_name":"Scheidemann","full_name":"Scheidemann, Claus","id":"38259"},{"first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210"},{"last_name":"Henning","full_name":"Henning, Bernd","id":"213","first_name":"Bernd"}],"date_created":"2025-11-25T12:23:06Z","title":"Estimation of third order elastic constants of piezoceramics using DC biased impedance measurements","doi":"10.5162/ultrasonic2025/a18-a6","year":"2025","place":"Paderborn","page":"142–145","citation":{"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>.","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>.","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>","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>.","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} }","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>"},"_id":"62300","project":[{"name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)","_id":"245"}],"department":[{"_id":"49"}],"user_id":"11829","language":[{"iso":"eng"}],"publication":"2025 International Congress on Ultrasonics","type":"conference","status":"public"},{"publisher":"AMA Service GmbH","date_updated":"2026-01-13T13:00:25Z","author":[{"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":"Jonas","last_name":"Hölscher","full_name":"Hölscher, Jonas","id":"73952"},{"full_name":"Claes, Leander","id":"11829","orcid":"0000-0002-4393-268X","last_name":"Claes","first_name":"Leander"},{"last_name":"Henning","id":"213","full_name":"Henning, Bernd","first_name":"Bernd"}],"date_created":"2025-11-25T12:23:05Z","title":"Modeling and simulation of the behavior of piezoceramics with the discontinuous Galerkin method","doi":"10.5162/ultrasonic2025/a18-a1","place":"Paderborn","year":"2025","citation":{"bibtex":"@inproceedings{Spieker_Förstner_Hölscher_Claes_Henning_2025, place={Paderborn}, title={Modeling and simulation of the behavior of piezoceramics with the discontinuous Galerkin method}, DOI={<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a1\">10.5162/ultrasonic2025/a18-a1</a>}, booktitle={2025 International Congress on Ultrasonics}, publisher={AMA Service GmbH}, author={Spieker, Carsten and Förstner, Jens and Hölscher, Jonas and Claes, Leander and Henning, Bernd}, year={2025}, pages={126–129} }","short":"C. Spieker, J. Förstner, J. Hölscher, L. Claes, B. Henning, in: 2025 International Congress on Ultrasonics, AMA Service GmbH, Paderborn, 2025, pp. 126–129.","mla":"Spieker, Carsten, et al. “Modeling and Simulation of the Behavior of Piezoceramics with the Discontinuous Galerkin Method.” <i>2025 International Congress on Ultrasonics</i>, AMA Service GmbH, 2025, pp. 126–129, doi:<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a1\">10.5162/ultrasonic2025/a18-a1</a>.","apa":"Spieker, C., Förstner, J., Hölscher, J., Claes, L., &#38; Henning, B. (2025). Modeling and simulation of the behavior of piezoceramics with the discontinuous Galerkin method. <i>2025 International Congress on Ultrasonics</i>, 126–129. <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a1\">https://doi.org/10.5162/ultrasonic2025/a18-a1</a>","ieee":"C. Spieker, J. Förstner, J. Hölscher, L. Claes, and B. Henning, “Modeling and simulation of the behavior of piezoceramics with the discontinuous Galerkin method,” in <i>2025 International Congress on Ultrasonics</i>, 2025, pp. 126–129, doi: <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a1\">10.5162/ultrasonic2025/a18-a1</a>.","chicago":"Spieker, Carsten, Jens Förstner, Jonas Hölscher, Leander Claes, and Bernd Henning. “Modeling and Simulation of the Behavior of Piezoceramics with the Discontinuous Galerkin Method.” In <i>2025 International Congress on Ultrasonics</i>, 126–129. Paderborn: AMA Service GmbH, 2025. <a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a1\">https://doi.org/10.5162/ultrasonic2025/a18-a1</a>.","ama":"Spieker C, Förstner J, Hölscher J, Claes L, Henning B. Modeling and simulation of the behavior of piezoceramics with the discontinuous Galerkin method. In: <i>2025 International Congress on Ultrasonics</i>. AMA Service GmbH; 2025:126–129. doi:<a href=\"https://doi.org/10.5162/ultrasonic2025/a18-a1\">10.5162/ultrasonic2025/a18-a1</a>"},"page":"126–129","project":[{"name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)","_id":"245"}],"_id":"62296","user_id":"11829","department":[{"_id":"49"},{"_id":"61"}],"language":[{"iso":"eng"}],"type":"conference","publication":"2025 International Congress on Ultrasonics","status":"public"},{"page":"130–133","citation":{"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>","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} }","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>.","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>.","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>"},"year":"2025","place":"Paderborn","doi":"10.5162/ultrasonic2025/a18-a2","title":"Multiscale thermo-piezoelectric simulations using the finite element method","date_created":"2025-11-25T12:23:06Z","author":[{"last_name":"Hölscher","full_name":"Hölscher, Jonas","id":"73952","first_name":"Jonas"},{"first_name":"Olga","last_name":"Friesen","id":"44026","full_name":"Friesen, Olga"},{"last_name":"Claes","orcid":"0000-0002-4393-268X","full_name":"Claes, Leander","id":"11829","first_name":"Leander"},{"last_name":"Spieker","full_name":"Spieker, Carsten","id":"67587","first_name":"Carsten"},{"orcid":"0000-0001-7059-9862","last_name":"Förstner","full_name":"Förstner, Jens","id":"158","first_name":"Jens"},{"first_name":"Bernd","full_name":"Henning, Bernd","id":"213","last_name":"Henning"}],"date_updated":"2026-01-13T12:59:56Z","publisher":"AMA Service GmbH","status":"public","publication":"2025 International Congress on Ultrasonics","type":"conference","language":[{"iso":"eng"}],"department":[{"_id":"49"},{"_id":"61"}],"user_id":"11829","_id":"62297","project":[{"name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)","_id":"245"}]},{"department":[{"_id":"9"},{"_id":"321"},{"_id":"367"},{"_id":"49"}],"user_id":"11829","_id":"63440","project":[{"name":"FaMOUS: Ein ultraschallbasiertes Messverfahren unter Berücksichtigung viskoelastischer Eigenschaften zur Charakterisierung der Faser-Matrix-Haftung bei Organoblechen sowie deren realitätsnahe Modellierung","_id":"157","grant_number":"495847374"}],"language":[{"iso":"ger"}],"keyword":["Faser-Kunststoff-Verbunde (FKV)","Faserverstärkte Kunststoffe (FVK)","Organobleche","Ultraschall"],"publication":"WAK Jahresmagazin","type":"journal_article","status":"public","volume":2025,"date_created":"2026-01-05T08:42:55Z","author":[{"first_name":"Elmar","id":"20531","full_name":"Moritzer, Elmar","last_name":"Moritzer"},{"first_name":"Philipp","id":"70091","full_name":"Brandes, Philipp","orcid":"0009-0005-9707-0885","last_name":"Brandes"},{"first_name":"Max Siegfried","last_name":"Westphal","full_name":"Westphal, Max Siegfried"},{"last_name":"Claes","orcid":"0000-0002-4393-268X","id":"11829","full_name":"Claes, Leander","first_name":"Leander"},{"last_name":"Wippermann","full_name":"Wippermann, Mareen","id":"74624","first_name":"Mareen"},{"first_name":"Julia","last_name":"Düchting","full_name":"Düchting, Julia"},{"first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd","id":"213"}],"date_updated":"2026-01-14T07:46:06Z","title":"ZERSTÖRUNGSFREIE ULTRASCHALLPRÜFUNG VON ORGANOBLECHEN","intvolume":"      2025","page":"26–29","citation":{"mla":"Moritzer, Elmar, et al. “ZERSTÖRUNGSFREIE ULTRASCHALLPRÜFUNG VON ORGANOBLECHEN.” <i>WAK Jahresmagazin</i>, vol. 2025, 2025, pp. 26–29.","bibtex":"@article{Moritzer_Brandes_Westphal_Claes_Wippermann_Düchting_Henning_2025, title={ZERSTÖRUNGSFREIE ULTRASCHALLPRÜFUNG VON ORGANOBLECHEN}, volume={2025}, journal={WAK Jahresmagazin}, author={Moritzer, Elmar and Brandes, Philipp and Westphal, Max Siegfried and Claes, Leander and Wippermann, Mareen and Düchting, Julia and Henning, Bernd}, year={2025}, pages={26–29} }","short":"E. Moritzer, P. Brandes, M.S. Westphal, L. Claes, M. Wippermann, J. Düchting, B. Henning, WAK Jahresmagazin 2025 (2025) 26–29.","apa":"Moritzer, E., Brandes, P., Westphal, M. S., Claes, L., Wippermann, M., Düchting, J., &#38; Henning, B. (2025). ZERSTÖRUNGSFREIE ULTRASCHALLPRÜFUNG VON ORGANOBLECHEN. <i>WAK Jahresmagazin</i>, <i>2025</i>, 26–29.","chicago":"Moritzer, Elmar, Philipp Brandes, Max Siegfried Westphal, Leander Claes, Mareen Wippermann, Julia Düchting, and Bernd Henning. “ZERSTÖRUNGSFREIE ULTRASCHALLPRÜFUNG VON ORGANOBLECHEN.” <i>WAK Jahresmagazin</i> 2025 (2025): 26–29.","ieee":"E. Moritzer <i>et al.</i>, “ZERSTÖRUNGSFREIE ULTRASCHALLPRÜFUNG VON ORGANOBLECHEN,” <i>WAK Jahresmagazin</i>, vol. 2025, pp. 26–29, 2025.","ama":"Moritzer E, Brandes P, Westphal MS, et al. ZERSTÖRUNGSFREIE ULTRASCHALLPRÜFUNG VON ORGANOBLECHEN. <i>WAK Jahresmagazin</i>. 2025;2025:26–29."},"year":"2025"},{"type":"conference","status":"public","user_id":"32580","department":[{"_id":"49"}],"_id":"60502","language":[{"iso":"eng"}],"citation":{"ieee":"H. Zeipert, L. Claes, C. Stoeckel, S. Mulay, and B. Henning, “Evaluation of piezoelectric micromachined ultrasonic transducers (PMUT) for the broadband detection of ultrasonic elastic waves,” presented at the SMSI 2025, Nürnberg, 2025, doi: <a href=\"https://doi.org/10.5162/SMSI2025/D5.2\">10.5162/SMSI2025/D5.2</a>.","chicago":"Zeipert, Henning, Leander Claes, Chris Stoeckel, Shubham Mulay, and Bernd Henning. “Evaluation of Piezoelectric Micromachined Ultrasonic Transducers (PMUT) for the Broadband Detection of Ultrasonic Elastic Waves,” 2025. <a href=\"https://doi.org/10.5162/SMSI2025/D5.2\">https://doi.org/10.5162/SMSI2025/D5.2</a>.","ama":"Zeipert H, Claes L, Stoeckel C, Mulay S, Henning B. Evaluation of piezoelectric micromachined ultrasonic transducers (PMUT) for the broadband detection of ultrasonic elastic waves. In: ; 2025. doi:<a href=\"https://doi.org/10.5162/SMSI2025/D5.2\">10.5162/SMSI2025/D5.2</a>","mla":"Zeipert, Henning, et al. <i>Evaluation of Piezoelectric Micromachined Ultrasonic Transducers (PMUT) for the Broadband Detection of Ultrasonic Elastic Waves</i>. 2025, doi:<a href=\"https://doi.org/10.5162/SMSI2025/D5.2\">10.5162/SMSI2025/D5.2</a>.","bibtex":"@inproceedings{Zeipert_Claes_Stoeckel_Mulay_Henning_2025, title={Evaluation of piezoelectric micromachined ultrasonic transducers (PMUT) for the broadband detection of ultrasonic elastic waves}, DOI={<a href=\"https://doi.org/10.5162/SMSI2025/D5.2\">10.5162/SMSI2025/D5.2</a>}, author={Zeipert, Henning and Claes, Leander and Stoeckel, Chris and Mulay, Shubham and Henning, Bernd}, year={2025} }","short":"H. Zeipert, L. Claes, C. Stoeckel, S. Mulay, B. Henning, in: 2025.","apa":"Zeipert, H., Claes, L., Stoeckel, C., Mulay, S., &#38; Henning, B. (2025). <i>Evaluation of piezoelectric micromachined ultrasonic transducers (PMUT) for the broadband detection of ultrasonic elastic waves</i>. 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Wissensforum GmbH (Ed.), <i>PIAE EUROPE 2025</i> (pp. 347–360). {VDI Verlag}. <a href=\"https://doi.org/10.51202/9783181024461-347\">https://doi.org/10.51202/9783181024461-347</a>"},"year":"2025","place":"Düsseldorf"},{"keyword":["Faser-Kunststoff-Verbunde (FKV)","Faserverstärkte Kunststoffe (FVK)","Organobleche","Ultraschall"],"language":[{"iso":"eng"}],"_id":"63441","project":[{"_id":"157","name":"FaMOUS: Ein ultraschallbasiertes Messverfahren unter Berücksichtigung viskoelastischer Eigenschaften zur Charakterisierung der Faser-Matrix-Haftung bei Organoblechen sowie deren realitätsnahe Modellierung","grant_number":"495847374"}],"department":[{"_id":"9"},{"_id":"321"},{"_id":"367"},{"_id":"49"}],"user_id":"59363","status":"public","publication":"40th International Conference of the Polymer Processing Society","type":"conference","title":"Non-destructive fiber-matrix adhesion measurement of glass fiber reinforced thermoplastic composite laminates using ultrasound","date_updated":"2026-03-30T14:20:00Z","author":[{"last_name":"Moritzer","full_name":"Moritzer, Elmar","id":"20531","first_name":"Elmar"},{"last_name":"Brandes","orcid":"0009-0005-9707-0885","full_name":"Brandes, Philipp","id":"70091","first_name":"Philipp"},{"first_name":"Maurice","id":"76071","full_name":"Wittler, Maurice","last_name":"Wittler"},{"last_name":"Claes","orcid":"0000-0002-4393-268X","full_name":"Claes, Leander","id":"11829","first_name":"Leander"},{"last_name":"Wippermann","full_name":"Wippermann, Mareen","id":"74624","first_name":"Mareen"},{"full_name":"Henning, Bernd","id":"213","last_name":"Henning","first_name":"Bernd"}],"date_created":"2026-01-05T08:42:55Z","year":"2025","citation":{"ieee":"E. 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Nellius <i>et al.</i>, “Ultrasonic phased array interface using programmable I/O and microprocessor clock synchronisation,” presented at the SMSI 2025, Nürnberg, 2025, doi: <a href=\"https://doi.org/ 10.5162/SMSI2025/A5.4\"> 10.5162/SMSI2025/A5.4</a>."}}]