[{"status":"public","user_id":"15402","volume":25,"_id":"57893","publisher":"Wiley","quality_controlled":"1","project":[{"name":"DART: Datengetriebene Methoden in der Regelungstechnik","_id":"690"}],"citation":{"mla":"Junker, Annika, et al. “Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design.” <i>PAMM</i>, vol. 25, no. 1, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/pamm.202400154\">10.1002/pamm.202400154</a>.","bibtex":"@article{Junker_Timmermann_Trächtler_2024, title={Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design}, volume={25}, DOI={<a href=\"https://doi.org/10.1002/pamm.202400154\">10.1002/pamm.202400154</a>}, number={1}, journal={PAMM}, publisher={Wiley}, author={Junker, Annika and Timmermann, Julia and Trächtler, Ansgar}, year={2024} }","ama":"Junker A, Timmermann J, Trächtler A. Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design. <i>PAMM</i>. 2024;25(1). doi:<a href=\"https://doi.org/10.1002/pamm.202400154\">10.1002/pamm.202400154</a>","ieee":"A. Junker, J. Timmermann, and A. Trächtler, “Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design,” <i>PAMM</i>, vol. 25, no. 1, 2024, doi: <a href=\"https://doi.org/10.1002/pamm.202400154\">10.1002/pamm.202400154</a>.","apa":"Junker, A., Timmermann, J., &#38; Trächtler, A. (2024). Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design. <i>PAMM</i>, <i>25</i>(1). <a href=\"https://doi.org/10.1002/pamm.202400154\">https://doi.org/10.1002/pamm.202400154</a>","chicago":"Junker, Annika, Julia Timmermann, and Ansgar Trächtler. “Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design.” <i>PAMM</i> 25, no. 1 (2024). <a href=\"https://doi.org/10.1002/pamm.202400154\">https://doi.org/10.1002/pamm.202400154</a>.","short":"A. Junker, J. Timmermann, A. Trächtler, PAMM 25 (2024)."},"oa":"1","publication_status":"published","date_updated":"2025-09-03T09:33:23Z","intvolume":"        25","year":"2024","title":"Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design","author":[{"full_name":"Junker, Annika","orcid":"0009-0002-6475-2503","first_name":"Annika","last_name":"Junker","id":"41470"},{"first_name":"Julia","last_name":"Timmermann","full_name":"Timmermann, Julia","id":"15402"},{"last_name":"Trächtler","first_name":"Ansgar","full_name":"Trächtler, Ansgar","id":"552"}],"publication_identifier":{"issn":["1617-7061","1617-7061"]},"doi":"10.1002/pamm.202400154","main_file_link":[{"open_access":"1","url":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pamm.202400154"}],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>Control engineering applications usually require a model that accurately represents the dynamics of the system. In addition to classical physical modeling, powerful data‐driven approaches are gaining popularity. However, the resulting models may not be ideal for control design due to their black‐box structure, which inherently limits interpretability. Formulating the system dynamics in port‐Hamiltonian form is highly beneficial, as its valuable property of passivity enables the straightforward design of globally stable controllers while ensuring physical interpretability. In a recently published article, we presented a method for data‐driven inference of port‐Hamiltonian models for complex mechatronic systems, requiring only fundamental physical prior knowledge. The resulting models accurately represent the nonlinear dynamics of the considered systems and are physically interpretable. In this contribution, we advance our previous work by including two key elements. Firstly, we demonstrate the application of the above described data‐driven PCHD models for controller design. Preserving the port‐Hamiltonian form in the closed loop not only guarantees global stability and robustness but also ensures desired speed and damping characteristics. Since control systems based on output measurements, which are continuously measured during operation due to the feedback structure, we secondly aim to use this data. Thus, we augment the existing modeling strategy with an intelligent adaptation approach to address uncertainties and (un)predictable system changes in mechatronic systems throughout their lifecycle, such as the installation of new components, wear, or temperature fluctuations during operation. Our proposed algorithm for recursively calculated data‐driven port‐Hamiltonian models utilizes a least‐squares approach with extensions such as automatically adjusting the forgetting factor and controlling the covariance matrix trace. We demonstrate the results through model‐based application on an academic example and experimental validation on a test bench.</jats:p>"}],"publication":"PAMM","issue":"1","type":"journal_article","department":[{"_id":"153"},{"_id":"880"}],"date_created":"2025-01-01T16:11:38Z"},{"type":"journal_article","department":[{"_id":"153"},{"_id":"880"}],"date_created":"2025-03-17T07:06:12Z","abstract":[{"text":"Model‐based state observers require high‐quality models to deliver accurate state estimates. However, due to time or cost shortage, modeling simplifications or numerical issues, models often have severe inaccuracies that may lead to insufficient and deficient control. Instead of attempting to iteratively model these deviations, we address the challenge by the concept of joint estimation. Thus, we assume a linear combination of suitable functions to approximate the inaccuracies. The parameters of the linear combination are supposed to be time invariant and augment the model's state. Subsequently, the parameters can be identified simultaneously to the states within the observer. Referring to the principle of Occam's razor, the parameters are claimed to be sparse. Our former work shows that estimating states and model inaccuracies simultaneously by a sparsity promoting unscented Kalman filter yields not only high accuracy but also provides interpretable representations of underlying inaccuracies. Based on this work, our contribution is twofold: First, we apply our approach finally on a real‐world test bench, namely a golf robot. Within the experimental setting, we investigate closed loop behavior as well as how suitable functions need to be chosen to approximate the inaccuracies in a physically interpretable way. Results do not only provide high state estimation accuracy but also meaningful insights into the system's inaccuracies. Second, we discuss and establish a method to automatically adapt and update the model based on collected data of the linear combination during operation. Examining past parameter estimates by principal component analysis, a moving window is utilized to extract the most dominant functions. These are kept characterizing the model inaccuracies, while nondominant functions are automatically neglected and refilled with novel function candidates. After analysis and rebuilding, this updated function set is subsequently fed back into the joint estimation loop and deployed for further estimation. Hence, we give a holistic paradigm of how to analyze and combat model inaccuracies while ensuring high state estimation accuracy. Within this setting, we once more investigate closed loop behavior and yield promising results. In conclusion, we show that the proposed observer provides a helpful tool to guarantee high estimation accuracy for models with severe inaccuracies or for situations with occurring deviations during operation, for example, due to mechanical wear or temperature changes.</jats:p>","lang":"eng"}],"publication":"PAMM","issue":"1","doi":"10.1002/pamm.202400080","language":[{"iso":"eng"}],"date_updated":"2025-09-03T10:36:10Z","publication_status":"published","intvolume":"        25","year":"2024","title":"Online Learning With Joint State and Model Estimation","author":[{"id":"43992","first_name":"Ricarda-Samantha","last_name":"Götte","full_name":"Götte, Ricarda-Samantha"},{"full_name":"Timmermann, Julia","last_name":"Timmermann","first_name":"Julia","id":"15402"}],"publication_identifier":{"issn":["1617-7061","1617-7061"]},"project":[{"_id":"690","name":"DART: Datengetriebene Methoden in der Regelungstechnik"}],"citation":{"mla":"Götte, Ricarda-Samantha, and Julia Timmermann. “Online Learning With Joint State and Model Estimation.” <i>PAMM</i>, vol. 25, no. 1, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/pamm.202400080\">10.1002/pamm.202400080</a>.","ama":"Götte R-S, Timmermann J. Online Learning With Joint State and Model Estimation. <i>PAMM</i>. 2024;25(1). doi:<a href=\"https://doi.org/10.1002/pamm.202400080\">10.1002/pamm.202400080</a>","bibtex":"@article{Götte_Timmermann_2024, title={Online Learning With Joint State and Model Estimation}, volume={25}, DOI={<a href=\"https://doi.org/10.1002/pamm.202400080\">10.1002/pamm.202400080</a>}, number={1}, journal={PAMM}, publisher={Wiley}, author={Götte, Ricarda-Samantha and Timmermann, Julia}, year={2024} }","apa":"Götte, R.-S., &#38; Timmermann, J. (2024). Online Learning With Joint State and Model Estimation. <i>PAMM</i>, <i>25</i>(1). <a href=\"https://doi.org/10.1002/pamm.202400080\">https://doi.org/10.1002/pamm.202400080</a>","ieee":"R.-S. Götte and J. Timmermann, “Online Learning With Joint State and Model Estimation,” <i>PAMM</i>, vol. 25, no. 1, 2024, doi: <a href=\"https://doi.org/10.1002/pamm.202400080\">10.1002/pamm.202400080</a>.","short":"R.-S. Götte, J. Timmermann, PAMM 25 (2024).","chicago":"Götte, Ricarda-Samantha, and Julia Timmermann. “Online Learning With Joint State and Model Estimation.” <i>PAMM</i> 25, no. 1 (2024). <a href=\"https://doi.org/10.1002/pamm.202400080\">https://doi.org/10.1002/pamm.202400080</a>."},"user_id":"15402","volume":25,"_id":"59051","publisher":"Wiley","status":"public"},{"type":"conference","department":[{"_id":"9"},{"_id":"321"},{"_id":"367"}],"date_created":"2026-03-18T12:24:07Z","quality_controlled":"1","publication":"AIP Conference Proceedings","citation":{"ieee":"M. Albrecht, M. O. Bialaschik, M. Gehde, and V. Schöppner, “Serial hot gas welding - Heating and welding behaviour of a slot nozzle,” in <i>AIP Conference Proceedings</i>, 2024, vol. 3181, doi: <a href=\"https://doi.org/10.1063/5.0192316\">10.1063/5.0192316</a>.","mla":"Albrecht, Mirko, et al. “Serial Hot Gas Welding - Heating and Welding Behaviour of a Slot Nozzle.” <i>AIP Conference Proceedings</i>, vol. 3181, AIP Publishing, 2024, doi:<a href=\"https://doi.org/10.1063/5.0192316\">10.1063/5.0192316</a>.","apa":"Albrecht, M., Bialaschik, M. O., Gehde, M., &#38; Schöppner, V. (2024). Serial hot gas welding - Heating and welding behaviour of a slot nozzle. <i>AIP Conference Proceedings</i>, <i>3181</i>. <a href=\"https://doi.org/10.1063/5.0192316\">https://doi.org/10.1063/5.0192316</a>","bibtex":"@inproceedings{Albrecht_Bialaschik_Gehde_Schöppner_2024, title={Serial hot gas welding - Heating and welding behaviour of a slot nozzle}, volume={3181}, DOI={<a href=\"https://doi.org/10.1063/5.0192316\">10.1063/5.0192316</a>}, booktitle={AIP Conference Proceedings}, publisher={AIP Publishing}, author={Albrecht, Mirko and Bialaschik, Max Oliver and Gehde, Michael and Schöppner, Volker}, year={2024} }","chicago":"Albrecht, Mirko, Max Oliver Bialaschik, Michael Gehde, and Volker Schöppner. “Serial Hot Gas Welding - Heating and Welding Behaviour of a Slot Nozzle.” In <i>AIP Conference Proceedings</i>, Vol. 3181. AIP Publishing, 2024. <a href=\"https://doi.org/10.1063/5.0192316\">https://doi.org/10.1063/5.0192316</a>.","short":"M. Albrecht, M.O. Bialaschik, M. Gehde, V. Schöppner, in: AIP Conference Proceedings, AIP Publishing, 2024.","ama":"Albrecht M, Bialaschik MO, Gehde M, Schöppner V. Serial hot gas welding - Heating and welding behaviour of a slot nozzle. In: <i>AIP Conference Proceedings</i>. Vol 3181. AIP Publishing; 2024. doi:<a href=\"https://doi.org/10.1063/5.0192316\">10.1063/5.0192316</a>"},"doi":"10.1063/5.0192316","user_id":"59363","volume":3181,"_id":"65052","publisher":"AIP Publishing","language":[{"iso":"eng"}],"date_updated":"2026-03-18T12:24:42Z","publication_status":"published","intvolume":"      3181","year":"2024","title":"Serial hot gas welding - Heating and welding behaviour of a slot nozzle","status":"public","publication_identifier":{"issn":["0094-243X"]},"author":[{"full_name":"Albrecht, Mirko","last_name":"Albrecht","first_name":"Mirko"},{"id":"32297","full_name":"Bialaschik, Max Oliver","last_name":"Bialaschik","first_name":"Max Oliver"},{"last_name":"Gehde","first_name":"Michael","full_name":"Gehde, Michael"},{"full_name":"Schöppner, Volker","first_name":"Volker","last_name":"Schöppner","id":"20530"}]},{"publication_status":"published","date_updated":"2026-03-19T10:57:29Z","year":"2024","title":"Mikromechanische Analyse von Eigenspannungen in direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden","publication_identifier":{"isbn":["9783757887650"]},"author":[{"full_name":"Tinkloh, Steffen Rainer","first_name":"Steffen Rainer","last_name":"Tinkloh"}],"language":[{"iso":"ger"}],"extern":"1","abstract":[{"text":"Residual stresses in directly joined laminates made of steel and carbon fiber reinforced epoxy resin reduce the interface and bond strength and thus have to be taken into account for the strength analysis of structural components. For a holistic description of residual stresses, a thermo-chemo-mechanical constitutive model is introduced in the present work and presented for the multi-scale analysis of residual stress patterns. In this context, the analysis of representative unit cells with regular and stochastic distribution of fibers gives information about the associated deformation and stress fields. Dehomogenization at macroscopically highly stressed regions, characterized by local stress peaks, reveals the effect of gradient deformation in the microstructure. Another aspect of this work is the development of FFT-based Galerkin methods, which allows an evaluation of the effect of defect densities, heterogeneities and morphologies on the applicability of the incremental hole drilling method. It could be demonstrated that the incremental hole drilling method is particularly sensitive to defects running along the surface.","lang":"eng"},{"text":"Eigenspannungen in direktgefügten Werkstoffverbunden aus Stahl und kohlenstofffaserverstärktem Epoxidharz reduzieren die Grenzschicht- und Verbundfestigkeit und sind somit für die Festigkeitsbeurteilung von Strukturen zwingend zu berücksichtigen. Zur ganzheitlichen Beschreibung von Eigenspannungen wird in der vorliegenden Arbeit ein thermo-chemo-mechanisches Konstitutivmodell für die skalenübergreifende Bewertung von Eigenspannungsverteilungen vorgestellt. Die Analyse von repräsentativen Einheitszellen mit regulärer und stochastischer Verteilung von Fasern liefert in diesem Zusammenhang Informationen über die zugehörigen Deformations- und Spannungsfelder. Die Dehomogenisierung an makroskopisch hochbelasteten Bereichen, die durch lokale Spannungsüberhöhungen gekennzeichnet sind, zeigt die Auswirkung der gradientenbehafteten Deformation in der Mikrostruktur. Ein weiterer Aspekt dieser Arbeit ist die Entwicklung FFT-basierter Galerkin-Methoden, die es erstmalig erlauben, eine Bewertung der Auswirkung von Defektdichte, Heterogenität und Morphologie auf die Anwendbarkeit der inkrementellen Bohrlochmethode vorzunehmen. Es konnte nachgewiesen werden, dass die inkrementelle Bohrlochmethode insbesondere auf an der Oberfläche verlaufende Defekte sensitiv reagiert.","lang":"ger"}],"type":"dissertation","keyword":["Hybride Werkstoffverbunde","Eigenspanungen","FFT-basierte Galerkin-Methode","Mikromechanik","Finite-Elemente-Methode"],"department":[{"_id":"9"},{"_id":"149"},{"_id":"321"}],"date_created":"2024-10-17T07:56:02Z","status":"public","user_id":"71335","page":"168","_id":"56654","publisher":"BoD - Books on Demand","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"ieee":"S. R. Tinkloh, <i>Mikromechanische Analyse von Eigenspannungen in direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden</i>. BoD - Books on Demand, 2024.","apa":"Tinkloh, S. R. (2024). <i>Mikromechanische Analyse von Eigenspannungen in direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden</i>. BoD - Books on Demand.","short":"S.R. Tinkloh, Mikromechanische Analyse von Eigenspannungen in direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden, BoD - Books on Demand, 2024.","chicago":"Tinkloh, Steffen Rainer. <i>Mikromechanische Analyse von Eigenspannungen in direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden</i>. BoD - Books on Demand, 2024.","mla":"Tinkloh, Steffen Rainer. <i>Mikromechanische Analyse von Eigenspannungen in direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden</i>. BoD - Books on Demand, 2024.","bibtex":"@book{Tinkloh_2024, title={Mikromechanische Analyse von Eigenspannungen in direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden}, publisher={BoD - Books on Demand}, author={Tinkloh, Steffen Rainer}, year={2024} }","ama":"Tinkloh SR. <i>Mikromechanische Analyse von Eigenspannungen in direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden</i>. BoD - Books on Demand; 2024."},"supervisor":[{"last_name":"Tröster","first_name":"Thomas","full_name":"Tröster, Thomas"},{"first_name":"Thomas","last_name":"Niendorf","full_name":"Niendorf, Thomas"}]},{"publication_identifier":{"issn":["2075-4701"]},"author":[{"id":"49504","last_name":"Chalicheemalapalli Jayasankar","first_name":"Deviprasad","orcid":"https://orcid.org/ 0000-0002-3446-2444","full_name":"Chalicheemalapalli Jayasankar, Deviprasad"},{"first_name":"Stefan","last_name":"Gnaase","full_name":"Gnaase, Stefan","id":"25730"},{"id":"90491","first_name":"Dennis","last_name":"Lehnert","full_name":"Lehnert, Dennis"},{"last_name":"Walter","first_name":"Artur","full_name":"Walter, Artur"},{"first_name":"Robin","last_name":"Rohling","full_name":"Rohling, Robin"},{"id":"553","first_name":"Thomas","last_name":"Tröster","full_name":"Tröster, Thomas"}],"title":"Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling","year":"2024","article_type":"original","intvolume":"        14","publication_status":"published","date_updated":"2026-03-20T08:44:28Z","language":[{"iso":"eng"}],"article_number":"1353","main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2075-4701/14/12/1353"}],"doi":"10.3390/met14121353","issue":"12","publication":"Metals","abstract":[{"text":"<jats:p>The optimization of process parameters in powder Directed Energy Deposition (DED) is essential for achieving consistent, high-quality bead geometries, which directly influence the performance and structural integrity of fabricated components. As a subset of additive manufacturing (AM), the DED process, also referred to as laser metal deposition (LMD), enables precise, layer-by-layer material deposition, making it highly suitable for complex geometries and part repair applications. Critical parameters, such as the laser power, feed rate, powder mass flow, and substrate temperature govern the deposition process, impacting the bead height, width, contact angle, and dilution. Inconsistent control over these variables can lead to defects, such as poor bonding, dimensional inaccuracies, and material weaknesses, ultimately compromising the final product. This paper investigates the effects of various process parameters, specifically the substrate temperature, on bead track geometry in DED processes for stainless steel (1.4404). A specialized experimental setup, integrated within a DED machine, facilitates the controlled thermal conditioning of sample sheets. Using Design of Experiments (DoE) methods, individual bead marks are generated and analyzed to assess geometric characteristics. Regression models, including both linear and quadratic approaches, are constructed to predict machine parameters for achieving the desired bead geometry at different substrate temperatures. Validation experiments confirm the accuracy and reliability of the models, particularly in predicting the bead height, bead width, and contact angle across a broad range of substrate temperatures. However, the models demonstrated limitations in accurately predicting dilution, indicating the need for further refinement. Despite some deviations in measured values, successful fabrication is achieved, demonstrating robust bonding between the bead and substrate. The developed models offer insights into optimizing DED process parameters to achieve desired bead characteristics, advancing the precision and reliability of additive manufacturing technology. Future work will focus on refining the regression models to improve predictions, particularly for dilution, and further investigate non-linear interactions between process variables.</jats:p>","lang":"eng"}],"date_created":"2024-12-10T12:13:23Z","department":[{"_id":"321"},{"_id":"149"},{"_id":"9"}],"type":"journal_article","keyword":["additive manufacturing","direct energy deposition","laser metal deposition"],"status":"public","has_accepted_license":"1","_id":"57699","publisher":"MDPI AG","volume":14,"user_id":"49504","ddc":["670"],"citation":{"mla":"Chalicheemalapalli Jayasankar, Deviprasad, et al. “Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling.” <i>Metals</i>, vol. 14, no. 12, 1353, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/met14121353\">10.3390/met14121353</a>.","ama":"Chalicheemalapalli Jayasankar D, Gnaase S, Lehnert D, Walter A, Rohling R, Tröster T. Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling. <i>Metals</i>. 2024;14(12). doi:<a href=\"https://doi.org/10.3390/met14121353\">10.3390/met14121353</a>","bibtex":"@article{Chalicheemalapalli Jayasankar_Gnaase_Lehnert_Walter_Rohling_Tröster_2024, title={Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling}, volume={14}, DOI={<a href=\"https://doi.org/10.3390/met14121353\">10.3390/met14121353</a>}, number={121353}, journal={Metals}, publisher={MDPI AG}, author={Chalicheemalapalli Jayasankar, Deviprasad and Gnaase, Stefan and Lehnert, Dennis and Walter, Artur and Rohling, Robin and Tröster, Thomas}, year={2024} }","apa":"Chalicheemalapalli Jayasankar, D., Gnaase, S., Lehnert, D., Walter, A., Rohling, R., &#38; Tröster, T. (2024). Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling. <i>Metals</i>, <i>14</i>(12), Article 1353. <a href=\"https://doi.org/10.3390/met14121353\">https://doi.org/10.3390/met14121353</a>","ieee":"D. Chalicheemalapalli Jayasankar, S. Gnaase, D. Lehnert, A. Walter, R. Rohling, and T. Tröster, “Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling,” <i>Metals</i>, vol. 14, no. 12, Art. no. 1353, 2024, doi: <a href=\"https://doi.org/10.3390/met14121353\">10.3390/met14121353</a>.","short":"D. Chalicheemalapalli Jayasankar, S. Gnaase, D. Lehnert, A. Walter, R. Rohling, T. Tröster, Metals 14 (2024).","chicago":"Chalicheemalapalli Jayasankar, Deviprasad, Stefan Gnaase, Dennis Lehnert, Artur Walter, Robin Rohling, and Thomas Tröster. “Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling.” <i>Metals</i> 14, no. 12 (2024). <a href=\"https://doi.org/10.3390/met14121353\">https://doi.org/10.3390/met14121353</a>."},"quality_controlled":"1","oa":"1"},{"_id":"56089","publisher":"MDPI AG","user_id":"49504","volume":14,"status":"public","oa":"1","citation":{"apa":"Chalicheemalapalli Jayasankar, D., Gnaase, S., Kaiser, M. A., Lehnert, D., &#38; Tröster, T. (2024). Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications. <i>Metals</i>, <i>14</i>(7), Article 772. <a href=\"https://doi.org/10.3390/met14070772\">https://doi.org/10.3390/met14070772</a>","mla":"Chalicheemalapalli Jayasankar, Deviprasad, et al. “Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications.” <i>Metals</i>, vol. 14, no. 7, 772, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/met14070772\">10.3390/met14070772</a>.","ieee":"D. Chalicheemalapalli Jayasankar, S. Gnaase, M. A. Kaiser, D. Lehnert, and T. Tröster, “Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications,” <i>Metals</i>, vol. 14, no. 7, Art. no. 772, 2024, doi: <a href=\"https://doi.org/10.3390/met14070772\">10.3390/met14070772</a>.","chicago":"Chalicheemalapalli Jayasankar, Deviprasad, Stefan Gnaase, Maximilian Alexander Kaiser, Dennis Lehnert, and Thomas Tröster. “Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications.” <i>Metals</i> 14, no. 7 (2024). <a href=\"https://doi.org/10.3390/met14070772\">https://doi.org/10.3390/met14070772</a>.","ama":"Chalicheemalapalli Jayasankar D, Gnaase S, Kaiser MA, Lehnert D, Tröster T. Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications. <i>Metals</i>. 2024;14(7). doi:<a href=\"https://doi.org/10.3390/met14070772\">10.3390/met14070772</a>","short":"D. Chalicheemalapalli Jayasankar, S. Gnaase, M.A. Kaiser, D. Lehnert, T. Tröster, Metals 14 (2024).","bibtex":"@article{Chalicheemalapalli Jayasankar_Gnaase_Kaiser_Lehnert_Tröster_2024, title={Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications}, volume={14}, DOI={<a href=\"https://doi.org/10.3390/met14070772\">10.3390/met14070772</a>}, number={7772}, journal={Metals}, publisher={MDPI AG}, author={Chalicheemalapalli Jayasankar, Deviprasad and Gnaase, Stefan and Kaiser, Maximilian Alexander and Lehnert, Dennis and Tröster, Thomas}, year={2024} }"},"quality_controlled":"1","main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2075-4701/14/7/772"}],"article_number":"772","language":[{"iso":"eng"}],"doi":"10.3390/met14070772","year":"2024","title":"Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications","author":[{"orcid":"https://orcid.org/ 0000-0002-3446-2444","last_name":"Chalicheemalapalli Jayasankar","first_name":"Deviprasad","full_name":"Chalicheemalapalli Jayasankar, Deviprasad","id":"49504"},{"id":"25730","first_name":"Stefan","last_name":"Gnaase","full_name":"Gnaase, Stefan"},{"full_name":"Kaiser, Maximilian Alexander","orcid":"0009-0008-1333-3396","last_name":"Kaiser","first_name":"Maximilian Alexander","id":"72351"},{"id":"90491","full_name":"Lehnert, Dennis","first_name":"Dennis","last_name":"Lehnert"},{"last_name":"Tröster","first_name":"Thomas","full_name":"Tröster, Thomas","id":"553"}],"publication_identifier":{"issn":["2075-4701"]},"date_updated":"2026-03-20T08:44:23Z","publication_status":"published","intvolume":"        14","article_type":"original","date_created":"2024-09-10T10:19:32Z","keyword":["additive manufacturing (AM)","selective laser melting (SLM)","laser metal deposition (LMD)","hybrid manufacturing","process optimization","316L","1.2709"],"type":"journal_article","department":[{"_id":"9"},{"_id":"321"},{"_id":"149"}],"publication":"Metals","issue":"7","abstract":[{"text":"<jats:p>Additive manufacturing (AM) technologies enable near-net-shape designs and demand-oriented material usage, which significantly minimizes waste. This points to a substantial opportunity for further optimization in material savings and process design. The current study delves into the advancement of sustainable manufacturing practices in the automotive industry, emphasizing the crucial role of lightweight construction concepts and AM technologies in enhancing resource efficiency and reducing greenhouse gas emissions. By exploring the integration of novel AM techniques such as selective laser melting (SLM) and laser metal deposition (LMD), the study aims to overcome existing limitations like slow build-up rates and limited component resolution. The study’s core objective revolves around the development and validation of a continuous process chain that synergizes different AM routes. In the current study, the continuous process chain for DMG MORI Lasertec 65 3D’s LMD system and the DMG MORI Lasertec 30 3D’s was demonstrated using 316L and 1.2709 steel materials. This integrated approach is designed to significantly curtail process times and minimize component costs, thus suggesting an industry-oriented process chain for future manufacturing paradigms. Additionally, the research investigates the production and material behavior of components under varying manufacturing processes, material combinations, and boundary layer materials. The culmination of this study is the validation of the proposed process route through a technology demonstrator, assessing its scalability and setting a benchmark for resource-efficient manufacturing in the automotive sector.</jats:p>","lang":"eng"}]},{"status":"public","volume":8,"user_id":"338","_id":"55743","publisher":"MDPI AG","quality_controlled":"1","citation":{"chicago":"Irmak, Hayrettin, Steffen Rainer Tinkloh, Thorsten Marten, and Thomas Tröster. “Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure.” <i>Journal of Composites Science</i> 8, no. 8 (2024). <a href=\"https://doi.org/10.3390/jcs8080316\">https://doi.org/10.3390/jcs8080316</a>.","short":"H. Irmak, S.R. Tinkloh, T. Marten, T. Tröster, Journal of Composites Science 8 (2024).","ieee":"H. Irmak, S. R. Tinkloh, T. Marten, and T. Tröster, “Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure,” <i>Journal of Composites Science</i>, vol. 8, no. 8, Art. no. 316, 2024, doi: <a href=\"https://doi.org/10.3390/jcs8080316\">10.3390/jcs8080316</a>.","apa":"Irmak, H., Tinkloh, S. R., Marten, T., &#38; Tröster, T. (2024). Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure. <i>Journal of Composites Science</i>, <i>8</i>(8), Article 316. <a href=\"https://doi.org/10.3390/jcs8080316\">https://doi.org/10.3390/jcs8080316</a>","bibtex":"@article{Irmak_Tinkloh_Marten_Tröster_2024, title={Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure}, volume={8}, DOI={<a href=\"https://doi.org/10.3390/jcs8080316\">10.3390/jcs8080316</a>}, number={8316}, journal={Journal of Composites Science}, publisher={MDPI AG}, author={Irmak, Hayrettin and Tinkloh, Steffen Rainer and Marten, Thorsten and Tröster, Thomas}, year={2024} }","ama":"Irmak H, Tinkloh SR, Marten T, Tröster T. Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure. <i>Journal of Composites Science</i>. 2024;8(8). doi:<a href=\"https://doi.org/10.3390/jcs8080316\">10.3390/jcs8080316</a>","mla":"Irmak, Hayrettin, et al. “Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure.” <i>Journal of Composites Science</i>, vol. 8, no. 8, 316, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/jcs8080316\">10.3390/jcs8080316</a>."},"intvolume":"         8","article_type":"original","date_updated":"2026-03-23T10:31:09Z","publication_status":"published","publication_identifier":{"issn":["2504-477X"]},"author":[{"orcid":"https://orcid.org/0009-0009-6267-2957","first_name":"Hayrettin","last_name":"Irmak","full_name":"Irmak, Hayrettin","id":"75657"},{"first_name":"Steffen Rainer","last_name":"Tinkloh","full_name":"Tinkloh, Steffen Rainer","id":"72722"},{"id":"338","full_name":"Marten, Thorsten","last_name":"Marten","first_name":"Thorsten","orcid":"0009-0001-6433-7839"},{"last_name":"Tröster","first_name":"Thomas","full_name":"Tröster, Thomas","id":"553"}],"year":"2024","title":"Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure","doi":"10.3390/jcs8080316","language":[{"iso":"eng"}],"article_number":"316","abstract":[{"lang":"eng","text":"The use of hybrid materials as a combination of fibre-reinforced plastic (FRP) and metal is of great interest in order to meet the increasing demands for sustainability, efficiency, and emission reduction based on the principle of lightweight design. These two components can therefore be joined using the intrinsic joining technique, which is formed by curing the matrix of the FRP component. In this study, for the hybrid joint, unidirectionally pre-impregnated semi-finished products (prepregs) with duromer matrix resin and micro-alloyed HC340LA steel were used. In order to conduct a detailed investigation, the damage mechanisms of intrinsically produced fibre metal laminates (FMLs), a new clamping device, and a novel pressing tool were designed and put into operation. The prepregs were prestressed by applying a preloading force using a specially designed prestressing frame. Hybrid specimens were then produced and subjected to nanoindentation and a shear tensile test. In particular, the effect of the residual stress state by varying the defined prestressing force on the damage mechanisms was studied. The results showed that no fracture patterns occurred in the interface of the specimens without preloading as a result of curing at 120 °C, whereas specimens with preloading failed at the boundary layer in the tensile range. Nevertheless, all specimens cured at 160 °C failed at the boundary layer in the tensile range. Furthermore, it was proven that the force and displacement of the preloaded specimens were promisingly higher than those of the unpreloaded specimens."}],"publication":"Journal of Composites Science","issue":"8","department":[{"_id":"9"},{"_id":"321"},{"_id":"149"}],"keyword":["CFRP","prestressing","fibre metal laminate","interface","prepreg","shear tensile test"],"type":"journal_article","date_created":"2024-08-23T06:47:27Z"},{"date_created":"2026-03-25T09:43:51Z","type":"conference","department":[{"_id":"9"},{"_id":"321"},{"_id":"367"}],"citation":{"ieee":"V. Schöppner and T. Arndt, “Experimental investigations on anvil-free ultrasonic welding for welding situations with one sided access,” 2024.","apa":"Schöppner, V., &#38; Arndt, T. (2024). <i>Experimental investigations on anvil-free ultrasonic welding for welding situations with one sided access</i> (77th Annual Assembly of the International Institute of Welding (IIW), Ed.).","short":"V. Schöppner, T. Arndt, in: 77th Annual Assembly of the International Institute of Welding (IIW) (Ed.), 2024.","chicago":"Schöppner, Volker, and Theresa Arndt. “Experimental Investigations on Anvil-Free Ultrasonic Welding for Welding Situations with One Sided Access.” edited by 77th Annual Assembly of the International Institute of Welding (IIW), 2024.","mla":"Schöppner, Volker, and Theresa Arndt. <i>Experimental Investigations on Anvil-Free Ultrasonic Welding for Welding Situations with One Sided Access</i>. Edited by 77th Annual Assembly of the International Institute of Welding (IIW), 2024.","bibtex":"@inproceedings{Schöppner_Arndt_2024, title={Experimental investigations on anvil-free ultrasonic welding for welding situations with one sided access}, author={Schöppner, Volker and Arndt, Theresa}, editor={77th Annual Assembly of the International Institute of Welding (IIW)}, year={2024} }","ama":"Schöppner V, Arndt T. Experimental investigations on anvil-free ultrasonic welding for welding situations with one sided access. In: 77th Annual Assembly of the International Institute of Welding (IIW), ed. ; 2024."},"_id":"65119","language":[{"iso":"eng"}],"user_id":"59363","status":"public","year":"2024","title":"Experimental investigations on anvil-free ultrasonic welding for welding situations with one sided access","corporate_editor":["77th Annual Assembly of the International Institute of Welding (IIW)"],"author":[{"id":"20530","last_name":"Schöppner","first_name":"Volker","full_name":"Schöppner, Volker"},{"id":"45302","first_name":"Theresa","last_name":"Arndt","full_name":"Arndt, Theresa"}],"date_updated":"2026-03-25T09:43:55Z"},{"date_created":"2026-03-25T10:47:04Z","department":[{"_id":"9"},{"_id":"321"},{"_id":"367"}],"type":"book_editor","citation":{"apa":"Moritzer, E., Bartmann, F., &#38; Riedl, A. (Eds.). (2024). <i>Entwicklung einer analytischen Berechnungsmethode zur Auslegung thermoplastischer Flanschsysteme</i>. VDI Verlag. <a href=\"https://doi.org/10.51202/9783181024324\">https://doi.org/10.51202/9783181024324</a>","mla":"Moritzer, Elmar, et al., editors. <i>Entwicklung Einer Analytischen Berechnungsmethode Zur Auslegung Thermoplastischer Flanschsysteme</i>. VDI Verlag, 2024, doi:<a href=\"https://doi.org/10.51202/9783181024324\">10.51202/9783181024324</a>.","ieee":"E. Moritzer, F. Bartmann, and A. Riedl, Eds., <i>Entwicklung einer analytischen Berechnungsmethode zur Auslegung thermoplastischer Flanschsysteme</i>. VDI Verlag, 2024.","chicago":"Moritzer, Elmar, Finn Bartmann, and Alexander Riedl, eds. <i>Entwicklung Einer Analytischen Berechnungsmethode Zur Auslegung Thermoplastischer Flanschsysteme</i>. VDI Verlag, 2024. <a href=\"https://doi.org/10.51202/9783181024324\">https://doi.org/10.51202/9783181024324</a>.","ama":"Moritzer E, Bartmann F, Riedl A, eds. <i>Entwicklung Einer Analytischen Berechnungsmethode Zur Auslegung Thermoplastischer Flanschsysteme</i>. VDI Verlag; 2024. doi:<a href=\"https://doi.org/10.51202/9783181024324\">10.51202/9783181024324</a>","short":"E. Moritzer, F. Bartmann, A. Riedl, eds., Entwicklung Einer Analytischen Berechnungsmethode Zur Auslegung Thermoplastischer Flanschsysteme, VDI Verlag, 2024.","bibtex":"@book{Moritzer_Bartmann_Riedl_2024, title={Entwicklung einer analytischen Berechnungsmethode zur Auslegung thermoplastischer Flanschsysteme}, DOI={<a href=\"https://doi.org/10.51202/9783181024324\">10.51202/9783181024324</a>}, publisher={VDI Verlag}, year={2024} }"},"abstract":[{"text":"<p> Inhalt Aktuelle rechtliche Rahmenbedingungen TA Luft – Wesentliche Änderungen, Herausforderungen, Konsequenzen in der Praxis und laufende Aktivitäten 1 Die Lösungsmittelbilanz bei VOC Anlagen als Nachweis der Einhaltung des Grenzwertes für diffuse Emissionen The solvent mass balance for VOC installations as verification of compliance with the limit value for fugitive emissions 11 Diffuse Emissionen Dichte Flanschverbindungen – Richtlinie VDI 2290 23 Technik zur Vermeidung und Verminderung von diffusen Emissionen – Regel- und Absperrarmaturen 37 Erstellung der Lösungsmittelbilanz im Kontext der 31. BImSchV – Rechtliche Anforderungen, praktische Herausforderungen und Unsicherheiten Preparation of the solvent balance in the context of the 31. BImSchV - legal requirements, practical challenges and uncertainties 45 Entwicklung einer analytischen Berechnungsmethode zur Auslegung thermoplastischer Flanschsysteme 61 VKA Control - Bewertung von Legionellenemissionen aus Verdunstungskühlanlagen: Neue Erkenntnisse und Methoden 71 Verbrennungsführung und Minderung organischer Emissionen 27. BImSchV versus Klimaschut... </p>","lang":"eng"}],"language":[{"iso":"eng"}],"_id":"65123","publisher":"VDI Verlag","alternative_title":["Stand - Konzepte - Fortschritte"],"editor":[{"id":"20531","full_name":"Moritzer, Elmar","first_name":"Elmar","last_name":"Moritzer"},{"first_name":"Finn","last_name":"Bartmann","full_name":"Bartmann, Finn"},{"full_name":"Riedl, Alexander","first_name":"Alexander","last_name":"Riedl"}],"doi":"10.51202/9783181024324","user_id":"59363","publication_identifier":{"isbn":["9783181024324"]},"year":"2024","status":"public","title":"Entwicklung einer analytischen Berechnungsmethode zur Auslegung thermoplastischer Flanschsysteme","date_updated":"2026-03-25T10:48:52Z","publication_status":"published"},{"year":"2024","status":"public","title":"Development of an analytical calculation method for the design of thermoplastic flange systems","author":[{"first_name":"Finn","last_name":"Bartmann","full_name":"Bartmann, Finn"},{"last_name":"Riedl","first_name":"Alexander","full_name":"Riedl, Alexander"},{"full_name":"Moritzer, Elmar","first_name":"Elmar","last_name":"Moritzer","id":"20531"}],"publication_status":"published","date_updated":"2026-03-25T10:49:39Z","_id":"65125","language":[{"iso":"eng"}],"publisher":"VDMA Fluidtechnik","user_id":"59363","doi":"10.61319/pqdsdeu6","publication":"22nd International Sealing Conference 2024","citation":{"ieee":"F. Bartmann, A. Riedl, and E. Moritzer, “Development of an analytical calculation method for the design of thermoplastic flange systems,” 2024, doi: <a href=\"https://doi.org/10.61319/pqdsdeu6\">10.61319/pqdsdeu6</a>.","apa":"Bartmann, F., Riedl, A., &#38; Moritzer, E. (2024). Development of an analytical calculation method for the design of thermoplastic flange systems. <i>22nd International Sealing Conference 2024</i>. <a href=\"https://doi.org/10.61319/pqdsdeu6\">https://doi.org/10.61319/pqdsdeu6</a>","mla":"Bartmann, Finn, et al. “Development of an Analytical Calculation Method for the Design of Thermoplastic Flange Systems.” <i>22nd International Sealing Conference 2024</i>, VDMA Fluidtechnik, 2024, doi:<a href=\"https://doi.org/10.61319/pqdsdeu6\">10.61319/pqdsdeu6</a>.","bibtex":"@inproceedings{Bartmann_Riedl_Moritzer_2024, title={Development of an analytical calculation method for the design of thermoplastic flange systems}, DOI={<a href=\"https://doi.org/10.61319/pqdsdeu6\">10.61319/pqdsdeu6</a>}, booktitle={22nd International Sealing Conference 2024}, publisher={VDMA Fluidtechnik}, author={Bartmann, Finn and Riedl, Alexander and Moritzer, Elmar}, year={2024} }","ama":"Bartmann F, Riedl A, Moritzer E. Development of an analytical calculation method for the design of thermoplastic flange systems. In: <i>22nd International Sealing Conference 2024</i>. VDMA Fluidtechnik; 2024. doi:<a href=\"https://doi.org/10.61319/pqdsdeu6\">10.61319/pqdsdeu6</a>","short":"F. Bartmann, A. Riedl, E. Moritzer, in: 22nd International Sealing Conference 2024, VDMA Fluidtechnik, 2024.","chicago":"Bartmann, Finn, Alexander Riedl, and Elmar Moritzer. “Development of an Analytical Calculation Method for the Design of Thermoplastic Flange Systems.” In <i>22nd International Sealing Conference 2024</i>. VDMA Fluidtechnik, 2024. <a href=\"https://doi.org/10.61319/pqdsdeu6\">https://doi.org/10.61319/pqdsdeu6</a>."},"abstract":[{"lang":"eng","text":"<jats:p>\"In the course of environmental protection and the amendment of TA Luft, emissions from flange connections must be reduced (to L0.01). The design and calculation of steel flanges is easy to handle with the help of EN 1591-1 and EN 13555. However, these standards are not suitable in their current form for thermoplastic sealing joints, such as those used in natural gas supply. For this reason, lengthy and cost-intensive tests must currently be carried out to verify tightness and strength. The aim of a doctoral project is to develop a time-efficient and cost-effective analytical calculation method based on the existing standards. For this purpose, the energy-elastic material parameters of the steel must be replaced by elastoplastic material parameters of the thermoplastics and the calculation algorithm adapted accordingly. The problem is to be investigated with the aid of numerical structural simulations (FEM) and experimental tests.\"</jats:p>"}],"date_created":"2026-03-25T10:49:06Z","type":"conference","department":[{"_id":"9"},{"_id":"321"},{"_id":"367"}]},{"type":"conference_abstract","department":[{"_id":"9"},{"_id":"321"},{"_id":"367"}],"place":"Würzburg","date_created":"2025-03-26T15:47:36Z","publication":"DVS Plenarsitzung AG W4 Fügen von Kunststoffen","citation":{"apa":"Moritzer, E., &#38; Held, C. (2024). Direktverschraubung additiv gefertigter Kunststoffbauteile. <i>DVS Plenarsitzung AG W4 Fügen von Kunststoffen</i>.","ieee":"E. Moritzer and C. Held, “Direktverschraubung additiv gefertigter Kunststoffbauteile,” 2024.","chicago":"Moritzer, Elmar, and Christian Held. “Direktverschraubung Additiv Gefertigter Kunststoffbauteile.” In <i>DVS Plenarsitzung AG W4 Fügen von Kunststoffen</i>. Würzburg: DVS, 2024.","short":"E. Moritzer, C. Held, in: DVS Plenarsitzung AG W4 Fügen von Kunststoffen, DVS, Würzburg, 2024.","mla":"Moritzer, Elmar, and Christian Held. “Direktverschraubung Additiv Gefertigter Kunststoffbauteile.” <i>DVS Plenarsitzung AG W4 Fügen von Kunststoffen</i>, DVS, 2024.","ama":"Moritzer E, Held C. Direktverschraubung additiv gefertigter Kunststoffbauteile. In: <i>DVS Plenarsitzung AG W4 Fügen von Kunststoffen</i>. DVS; 2024.","bibtex":"@inproceedings{Moritzer_Held_2024, place={Würzburg}, title={Direktverschraubung additiv gefertigter Kunststoffbauteile}, booktitle={DVS Plenarsitzung AG W4 Fügen von Kunststoffen}, publisher={DVS}, author={Moritzer, Elmar and Held, Christian}, year={2024} }"},"user_id":"59363","_id":"59159","publisher":"DVS","language":[{"iso":"eng"}],"date_updated":"2026-03-25T12:00:52Z","status":"public","year":"2024","title":"Direktverschraubung additiv gefertigter Kunststoffbauteile","author":[{"last_name":"Moritzer","first_name":"Elmar","full_name":"Moritzer, Elmar","id":"20531"},{"first_name":"Christian","last_name":"Held","full_name":"Held, Christian","id":"40647"}]},{"department":[{"_id":"152"}],"oa":"1","type":"conference","date_created":"2024-11-21T10:25:35Z","project":[{"_id":"516","name":"CREXDATA: CREXDATA: Kritische Maßnahmenplanung über extreme Datenmengen"}],"quality_controlled":"1","citation":{"mla":"Safranoglou, Ioannis, et al. “Augmented Reality for Real-Time Decision-Making in Flood Emergencies.” <i>2024 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)</i>, IEEE, 2024, doi:<a href=\"https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032\">https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032</a>.","bibtex":"@inproceedings{Safranoglou_Stavroulakis_Pottebaum_Ebel_Lamprinakis_Dimelli_Mania_2024, title={Augmented Reality for Real-Time Decision-Making in Flood Emergencies}, DOI={<a href=\"https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032\">https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032</a>}, booktitle={2024 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)}, publisher={IEEE}, author={Safranoglou, Ioannis and Stavroulakis, Alexis and Pottebaum, Jens and Ebel, Marcel and Lamprinakis, Georgios and Dimelli, Despina and Mania, Katerina}, year={2024} }","ama":"Safranoglou I, Stavroulakis A, Pottebaum J, et al. Augmented Reality for Real-Time Decision-Making in Flood Emergencies. In: <i>2024 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)</i>. IEEE; 2024. doi:<a href=\"https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032\">https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032</a>","ieee":"I. Safranoglou <i>et al.</i>, “Augmented Reality for Real-Time Decision-Making in Flood Emergencies,” presented at the 2024 IEEE International Symposium on Mixed and Augmented Reality, 2024, doi: <a href=\"https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032\">https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032</a>.","apa":"Safranoglou, I., Stavroulakis, A., Pottebaum, J., Ebel, M., Lamprinakis, G., Dimelli, D., &#38; Mania, K. (2024). Augmented Reality for Real-Time Decision-Making in Flood Emergencies. <i>2024 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)</i>. 2024 IEEE International Symposium on Mixed and Augmented Reality. <a href=\"https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032\">https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032</a>","chicago":"Safranoglou, Ioannis, Alexis Stavroulakis, Jens Pottebaum, Marcel Ebel, Georgios Lamprinakis, Despina Dimelli, and Katerina Mania. “Augmented Reality for Real-Time Decision-Making in Flood Emergencies.” In <i>2024 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)</i>. IEEE, 2024. <a href=\"https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032\">https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032</a>.","short":"I. Safranoglou, A. Stavroulakis, J. Pottebaum, M. Ebel, G. Lamprinakis, D. Dimelli, K. Mania, in: 2024 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct), IEEE, 2024."},"publication":"2024 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)","user_id":"405","doi":"https://doi.org/10.1109/ISMAR-Adjunct64951.2024.00032","publisher":"IEEE","_id":"57309","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://ieeexplore.ieee.org/abstract/document/10765130"}],"date_updated":"2026-03-31T02:42:32Z","author":[{"last_name":"Safranoglou","first_name":"Ioannis","full_name":"Safranoglou, Ioannis"},{"first_name":"Alexis","last_name":"Stavroulakis","full_name":"Stavroulakis, Alexis"},{"full_name":"Pottebaum, Jens","first_name":"Jens","last_name":"Pottebaum","orcid":"http://orcid.org/0000-0001-8778-2989","id":"405"},{"last_name":"Ebel","orcid":"https://orcid.org/0009-0007-5400-4436","first_name":"Marcel","full_name":"Ebel, Marcel","id":"81788"},{"first_name":"Georgios","last_name":"Lamprinakis","full_name":"Lamprinakis, Georgios"},{"full_name":"Dimelli, Despina","first_name":"Despina","last_name":"Dimelli"},{"full_name":"Mania, Katerina","first_name":"Katerina","last_name":"Mania"}],"conference":{"name":"2024 IEEE International Symposium on Mixed and Augmented Reality"},"title":"Augmented Reality for Real-Time Decision-Making in Flood Emergencies","year":"2024","status":"public"},{"year":"2024","title":"Evaluating Security Through Isolation and Defense in Depth","publication_identifier":{"issn":["1540-7993","1558-4046"]},"author":[{"id":"59256","full_name":"Bodden, Eric","last_name":"Bodden","first_name":"Eric","orcid":"0000-0003-3470-3647"},{"first_name":"Jens","orcid":"http://orcid.org/0000-0001-8778-2989","last_name":"Pottebaum","full_name":"Pottebaum, Jens","id":"405"},{"orcid":"0000-0002-1269-0702","first_name":"Markus","last_name":"Fockel","full_name":"Fockel, Markus","id":"8472"},{"id":"47565","orcid":"0000-0001-5765-971X","first_name":"Iris","last_name":"Gräßler","full_name":"Gräßler, Iris"}],"date_updated":"2026-03-31T02:19:49Z","publication_status":"published","intvolume":"        22","main_file_link":[{"url":"https://ieeexplore.ieee.org/document/10411721"}],"language":[{"iso":"eng"}],"doi":"10.1109/msec.2023.3336028","issue":"1","publication":"IEEE Security & Privacy","date_created":"2024-03-15T20:16:18Z","keyword":["Law","Electrical and Electronic Engineering","Computer Networks and Communications"],"type":"journal_article","department":[{"_id":"152"},{"_id":"76"},{"_id":"662"}],"status":"public","page":"69-72","_id":"52587","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","user_id":"405","volume":22,"citation":{"short":"E. Bodden, J. Pottebaum, M. Fockel, I. Gräßler, IEEE Security &#38; Privacy 22 (2024) 69–72.","chicago":"Bodden, Eric, Jens Pottebaum, Markus Fockel, and Iris Gräßler. “Evaluating Security Through Isolation and Defense in Depth.” <i>IEEE Security &#38; Privacy</i> 22, no. 1 (2024): 69–72. <a href=\"https://doi.org/10.1109/msec.2023.3336028\">https://doi.org/10.1109/msec.2023.3336028</a>.","ieee":"E. Bodden, J. Pottebaum, M. Fockel, and I. Gräßler, “Evaluating Security Through Isolation and Defense in Depth,” <i>IEEE Security &#38; Privacy</i>, vol. 22, no. 1, pp. 69–72, 2024, doi: <a href=\"https://doi.org/10.1109/msec.2023.3336028\">10.1109/msec.2023.3336028</a>.","apa":"Bodden, E., Pottebaum, J., Fockel, M., &#38; Gräßler, I. (2024). Evaluating Security Through Isolation and Defense in Depth. <i>IEEE Security &#38; Privacy</i>, <i>22</i>(1), 69–72. <a href=\"https://doi.org/10.1109/msec.2023.3336028\">https://doi.org/10.1109/msec.2023.3336028</a>","bibtex":"@article{Bodden_Pottebaum_Fockel_Gräßler_2024, title={Evaluating Security Through Isolation and Defense in Depth}, volume={22}, DOI={<a href=\"https://doi.org/10.1109/msec.2023.3336028\">10.1109/msec.2023.3336028</a>}, number={1}, journal={IEEE Security &#38; Privacy}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Bodden, Eric and Pottebaum, Jens and Fockel, Markus and Gräßler, Iris}, year={2024}, pages={69–72} }","ama":"Bodden E, Pottebaum J, Fockel M, Gräßler I. Evaluating Security Through Isolation and Defense in Depth. <i>IEEE Security &#38; Privacy</i>. 2024;22(1):69-72. doi:<a href=\"https://doi.org/10.1109/msec.2023.3336028\">10.1109/msec.2023.3336028</a>","mla":"Bodden, Eric, et al. “Evaluating Security Through Isolation and Defense in Depth.” <i>IEEE Security &#38; Privacy</i>, vol. 22, no. 1, Institute of Electrical and Electronics Engineers (IEEE), 2024, pp. 69–72, doi:<a href=\"https://doi.org/10.1109/msec.2023.3336028\">10.1109/msec.2023.3336028</a>."},"quality_controlled":"1"},{"date_updated":"2026-04-15T11:16:18Z","has_accepted_license":"1","status":"public","title":"Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers","year":"2024","author":[{"id":"38259","full_name":"Scheidemann, Claus","last_name":"Scheidemann","first_name":"Claus"},{"id":"210","full_name":"Hemsel, Tobias","last_name":"Hemsel","first_name":"Tobias"},{"id":"21220","full_name":"Sextro, Walter","last_name":"Sextro","first_name":"Walter"}],"conference":{"name":"21nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA)","start_date":"2024-07-22","location":"Hannover, Germany","end_date":"2024-07-26"},"user_id":"210","ddc":["620"],"_id":"61756","language":[{"iso":"eng"}],"project":[{"name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)","_id":"245"}],"file_date_updated":"2026-03-02T11:00:13Z","citation":{"short":"C. Scheidemann, T. Hemsel, W. Sextro, in: 2024.","chicago":"Scheidemann, Claus, Tobias Hemsel, and Walter Sextro. “Characteristic Behavior of Lead-Free and Lead-Containing Piezo Ring Ceramics in Ultrasonic Transducers,” 2024.","ieee":"C. Scheidemann, T. Hemsel, and W. Sextro, “Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers,” presented at the 21nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), Hannover, Germany, 2024.","apa":"Scheidemann, C., Hemsel, T., &#38; Sextro, W. (2024). <i>Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers</i>. 21nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), Hannover, Germany.","bibtex":"@inproceedings{Scheidemann_Hemsel_Sextro_2024, title={Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers}, author={Scheidemann, Claus and Hemsel, Tobias and Sextro, Walter}, year={2024} }","ama":"Scheidemann C, Hemsel T, Sextro W. Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers. In: ; 2024.","mla":"Scheidemann, Claus, et al. <i>Characteristic Behavior of Lead-Free and Lead-Containing Piezo Ring Ceramics in Ultrasonic Transducers</i>. 2024."},"type":"conference","department":[{"_id":"151"}],"oa":"1","file":[{"relation":"main_file","date_updated":"2026-03-02T11:00:13Z","file_name":"IWPMA_2024_Scheidemann.pdf","file_size":1984385,"access_level":"open_access","file_id":"63820","content_type":"application/pdf","creator":"hemsel","date_created":"2026-01-30T14:50:06Z"}],"date_created":"2025-10-08T14:28:33Z"},{"date_updated":"2026-05-12T11:56:47Z","publication_status":"published","conference":{"name":"ESAFORM 2024","location":"Toulouse"},"author":[{"full_name":"Borgert, Thomas","last_name":"Borgert","first_name":"Thomas","id":"83141"},{"id":"88725","last_name":"Nordieker","first_name":"Ansgar Bernhard","full_name":"Nordieker, Ansgar Bernhard"},{"full_name":"Homberg, Werner","first_name":"Werner","last_name":"Homberg","id":"233"}],"publication_identifier":{"issn":["2474-395X"]},"year":"2024","title":"Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation","status":"public","doi":"10.21741/9781644903131-180","user_id":"7850","language":[{"iso":"eng"}],"_id":"54650","publisher":"Materials Research Forum LLC","project":[{"_id":"133","name":"TRR 285 - Project Area C"},{"_id":"147","name":"TRR 285 - Subproject C03"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"abstract":[{"lang":"eng","text":"<jats:p>Abstract. Reducing the weight of vehicles can significantly lower the energy or fuel consumed and thus the emissions during operation. One possibility to assess this is the use of a property adapted multi-material systems containing high strength steel, light metals like aluminium or magnesium and fibre reinforced plastics. While expanding the number of materials used new challenges arise for the production and furthermore the joining technology to manufacture the vehicle made of the multi-material systems. One approach to overcome these challenges is to use innovative and adaptable joining techniques which allows the manufacturing of joints of different material combinations. Extensive research activities on the two stage thermo-mechanical joining process with adaptable joining elements was able to demonstrate the great potentials in terms of joining dissimilar materials with good strength. The previously kinematic and path-based fabrication of auxiliary joining elements is modified in this publication to a form-based approach with a perspective of establishing an efficient process chain using easily and cheaply available rods. Based on the new approach to produce the auxiliary joining elements, it can be demonstrated that a reproducible production of the geometry is possible for the investigated steel as well as aluminium material. </jats:p>"}],"citation":{"bibtex":"@inproceedings{Borgert_Nordieker_Homberg_2024, title={Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation}, DOI={<a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Borgert, Thomas and Nordieker, Ansgar Bernhard and Homberg, Werner}, year={2024} }","ama":"Borgert T, Nordieker AB, Homberg W. Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation. In: <i>Materials Research Proceedings</i>. Materials Research Forum LLC; 2024. doi:<a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>","mla":"Borgert, Thomas, et al. “Form-Based Manufacturing of Aluminium and Steel Auxiliary Joining Elements as the Basis for an Efficient Joining Operation.” <i>Materials Research Proceedings</i>, Materials Research Forum LLC, 2024, doi:<a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>.","short":"T. Borgert, A.B. Nordieker, W. Homberg, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.","chicago":"Borgert, Thomas, Ansgar Bernhard Nordieker, and Werner Homberg. “Form-Based Manufacturing of Aluminium and Steel Auxiliary Joining Elements as the Basis for an Efficient Joining Operation.” In <i>Materials Research Proceedings</i>. Materials Research Forum LLC, 2024. <a href=\"https://doi.org/10.21741/9781644903131-180\">https://doi.org/10.21741/9781644903131-180</a>.","ieee":"T. Borgert, A. B. Nordieker, and W. Homberg, “Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation,” presented at the ESAFORM 2024, Toulouse, 2024, doi: <a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>.","apa":"Borgert, T., Nordieker, A. B., &#38; Homberg, W. (2024). Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation. <i>Materials Research Proceedings</i>. ESAFORM 2024, Toulouse. <a href=\"https://doi.org/10.21741/9781644903131-180\">https://doi.org/10.21741/9781644903131-180</a>"},"publication":"Materials Research Proceedings","department":[{"_id":"156"}],"type":"conference","date_created":"2024-06-07T09:38:45Z"},{"citation":{"ieee":"T. Borgert, A. B. Nordieker, E. Wiens, and W. Homberg, “Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements,” <i>Journal of Advanced Joining Processes</i>, vol. 9, Art. no. 100185, 2024, doi: <a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>.","apa":"Borgert, T., Nordieker, A. B., Wiens, E., &#38; Homberg, W. (2024). Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements. <i>Journal of Advanced Joining Processes</i>, <i>9</i>, Article 100185. <a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">https://doi.org/10.1016/j.jajp.2024.100185</a>","mla":"Borgert, Thomas, et al. “Investigations to Improve the Tool Life during Thermomechanical and Incremental Forming of Steel Auxiliary Joining Elements.” <i>Journal of Advanced Joining Processes</i>, vol. 9, 100185, Elsevier BV, 2024, doi:<a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>.","bibtex":"@article{Borgert_Nordieker_Wiens_Homberg_2024, title={Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements}, volume={9}, DOI={<a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>}, number={100185}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Borgert, Thomas and Nordieker, Ansgar Bernhard and Wiens, Eugen and Homberg, Werner}, year={2024} }","chicago":"Borgert, Thomas, Ansgar Bernhard Nordieker, Eugen Wiens, and Werner Homberg. “Investigations to Improve the Tool Life during Thermomechanical and Incremental Forming of Steel Auxiliary Joining Elements.” <i>Journal of Advanced Joining Processes</i> 9 (2024). <a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">https://doi.org/10.1016/j.jajp.2024.100185</a>.","ama":"Borgert T, Nordieker AB, Wiens E, Homberg W. Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements. <i>Journal of Advanced Joining Processes</i>. 2024;9. doi:<a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>","short":"T. Borgert, A.B. Nordieker, E. Wiens, W. Homberg, Journal of Advanced Joining Processes 9 (2024)."},"project":[{"_id":"133","name":"TRR 285 - Project Area C"},{"name":"TRR 285 - Subproject C03","_id":"147"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"publisher":"Elsevier BV","_id":"54649","user_id":"7850","volume":9,"status":"public","date_created":"2024-06-07T09:31:59Z","type":"journal_article","department":[{"_id":"156"}],"publication":"Journal of Advanced Joining Processes","article_number":"100185","language":[{"iso":"eng"}],"doi":"10.1016/j.jajp.2024.100185","year":"2024","title":"Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements","publication_identifier":{"issn":["2666-3309"]},"author":[{"id":"83141","last_name":"Borgert","first_name":"Thomas","full_name":"Borgert, Thomas"},{"first_name":"Ansgar Bernhard","last_name":"Nordieker","full_name":"Nordieker, Ansgar Bernhard","id":"88725"},{"id":"7888","first_name":"Eugen","last_name":"Wiens","full_name":"Wiens, Eugen"},{"id":"233","first_name":"Werner","last_name":"Homberg","full_name":"Homberg, Werner"}],"date_updated":"2026-05-12T11:56:15Z","publication_status":"published","intvolume":"         9"},{"user_id":"7850","doi":"10.26599/frict.2025.9441052","language":[{"iso":"eng"}],"_id":"57742","publisher":"Tsinghua University Press","publication_status":"published","date_updated":"2026-05-12T14:08:38Z","article_type":"original","title":"Development of a friction model for the numerical simulation of clinching processes","status":"public","year":"2024","publication_identifier":{"issn":["2223-7690","2223-7704"]},"author":[{"full_name":"Böhnke, Max","last_name":"Böhnke","first_name":"Max","id":"45779"},{"id":"34782","last_name":"Bielak","first_name":"Christian Roman","full_name":"Bielak, Christian Roman"},{"id":"38279","last_name":"Beck","first_name":"Robert","orcid":"0000-0001-9056-4528","full_name":"Beck, Robert"},{"last_name":"Bobbert","first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850"},{"id":"32056","last_name":"Meschut","first_name":"Gerson","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson"}],"type":"journal_article","department":[{"_id":"157"}],"date_created":"2024-12-11T14:45:57Z","quality_controlled":"1","project":[{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"publication":"Friction","citation":{"ama":"Böhnke M, Bielak CR, Beck R, Bobbert M, Meschut G. Development of a friction model for the numerical simulation of clinching processes. <i>Friction</i>. Published online 2024. doi:<a href=\"https://doi.org/10.26599/frict.2025.9441052\">10.26599/frict.2025.9441052</a>","bibtex":"@article{Böhnke_Bielak_Beck_Bobbert_Meschut_2024, title={Development of a friction model for the numerical simulation of clinching processes}, DOI={<a href=\"https://doi.org/10.26599/frict.2025.9441052\">10.26599/frict.2025.9441052</a>}, journal={Friction}, publisher={Tsinghua University Press}, author={Böhnke, Max and Bielak, Christian Roman and Beck, Robert and Bobbert, Mathias and Meschut, Gerson}, year={2024} }","mla":"Böhnke, Max, et al. “Development of a Friction Model for the Numerical Simulation of Clinching Processes.” <i>Friction</i>, Tsinghua University Press, 2024, doi:<a href=\"https://doi.org/10.26599/frict.2025.9441052\">10.26599/frict.2025.9441052</a>.","chicago":"Böhnke, Max, Christian Roman Bielak, Robert Beck, Mathias Bobbert, and Gerson Meschut. “Development of a Friction Model for the Numerical Simulation of Clinching Processes.” <i>Friction</i>, 2024. <a href=\"https://doi.org/10.26599/frict.2025.9441052\">https://doi.org/10.26599/frict.2025.9441052</a>.","short":"M. Böhnke, C.R. Bielak, R. Beck, M. Bobbert, G. Meschut, Friction (2024).","apa":"Böhnke, M., Bielak, C. R., Beck, R., Bobbert, M., &#38; Meschut, G. (2024). Development of a friction model for the numerical simulation of clinching processes. <i>Friction</i>. <a href=\"https://doi.org/10.26599/frict.2025.9441052\">https://doi.org/10.26599/frict.2025.9441052</a>","ieee":"M. Böhnke, C. R. Bielak, R. Beck, M. Bobbert, and G. Meschut, “Development of a friction model for the numerical simulation of clinching processes,” <i>Friction</i>, 2024, doi: <a href=\"https://doi.org/10.26599/frict.2025.9441052\">10.26599/frict.2025.9441052</a>."}},{"citation":{"ama":"Friedlein J, Böhnke M, Schlichter MC, et al. Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing and Materials Processing</i>. 2024;8(4). doi:<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>","bibtex":"@article{Friedlein_Böhnke_Schlichter_Bobbert_Meschut_Mergheim_Steinmann_2024, title={Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining}, volume={8}, DOI={<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>}, number={4157}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Friedlein, Johannes and Böhnke, Max and Schlichter, Malte Christian and Bobbert, Mathias and Meschut, Gerson and Mergheim, Julia and Steinmann, Paul}, year={2024} }","mla":"Friedlein, Johannes, et al. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 8, no. 4, 157, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>.","chicago":"Friedlein, Johannes, Max Böhnke, Malte Christian Schlichter, Mathias Bobbert, Gerson Meschut, Julia Mergheim, and Paul Steinmann. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing and Materials Processing</i> 8, no. 4 (2024). <a href=\"https://doi.org/10.3390/jmmp8040157\">https://doi.org/10.3390/jmmp8040157</a>.","short":"J. Friedlein, M. Böhnke, M.C. Schlichter, M. Bobbert, G. Meschut, J. Mergheim, P. Steinmann, Journal of Manufacturing and Materials Processing 8 (2024).","apa":"Friedlein, J., Böhnke, M., Schlichter, M. C., Bobbert, M., Meschut, G., Mergheim, J., &#38; Steinmann, P. (2024). Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing and Materials Processing</i>, <i>8</i>(4), Article 157. <a href=\"https://doi.org/10.3390/jmmp8040157\">https://doi.org/10.3390/jmmp8040157</a>","ieee":"J. Friedlein <i>et al.</i>, “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 8, no. 4, Art. no. 157, 2024, doi: <a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>."},"project":[{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"quality_controlled":"1","status":"public","_id":"59585","publisher":"MDPI AG","volume":8,"user_id":"61977","publication":"Journal of Manufacturing and Materials Processing","issue":"4","abstract":[{"text":"Similar to bulk metal forming, clinch joining is characterised by large plastic deformations and a variety of different 3D stress states, including severe compression. However, inherent to plastic forming is the nucleation and growth of defects, whose detrimental effects on the material behaviour can be described by continuum damage models and eventually lead to material failure. As the damage evolution strongly depends on the stress state, a stress-state-dependent model is utilised to correctly track the accumulation. To formulate and parameterise this model, besides classical experiments, so-called modified punch tests are also integrated herein to enhance the calibration of the failure model by capturing a larger range of stress states and metal-forming-specific loading conditions. Moreover, when highly ductile materials are considered, such as the dual-phase steel HCT590X and the aluminium alloy EN AW-6014 T4 investigated here, strong necking and localisation might occur prior to fracture. This can alter the stress state and affect the actual strain at failure. This influence is captured by coupling plasticity and damage to incorporate the damage-induced softening effect. Its relative importance is shown by conducting inverse parameter identifications to determine damage and failure parameters for both mentioned ductile metals based on up to 12 different experiments.","lang":"eng"}],"date_created":"2025-04-15T11:07:52Z","department":[{"_id":"157"}],"type":"journal_article","author":[{"full_name":"Friedlein, Johannes","last_name":"Friedlein","first_name":"Johannes"},{"first_name":"Max","last_name":"Böhnke","full_name":"Böhnke, Max","id":"45779"},{"full_name":"Schlichter, Malte Christian","last_name":"Schlichter","first_name":"Malte Christian","id":"61977"},{"full_name":"Bobbert, Mathias","first_name":"Mathias","last_name":"Bobbert","id":"7850"},{"full_name":"Meschut, Gerson","first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","id":"32056"},{"full_name":"Mergheim, Julia","first_name":"Julia","last_name":"Mergheim"},{"first_name":"Paul","last_name":"Steinmann","full_name":"Steinmann, Paul"}],"publication_identifier":{"issn":["2504-4494"]},"title":"Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining","year":"2024","intvolume":"         8","date_updated":"2026-05-13T13:53:29Z","publication_status":"published","language":[{"iso":"eng"}],"article_number":"157","doi":"10.3390/jmmp8040157"},{"has_accepted_license":"1","date_updated":"2023-10-17T12:18:49Z","publication_status":"published","conference":{"end_date":"2023-09-25","start_date":"2023-09-23","name":"PARTEC 2023","location":"Nürnberg"},"author":[{"full_name":"Rüther, Moritz Johannes","first_name":"Moritz Johannes","last_name":"Rüther","id":"38188"},{"id":"71545","first_name":"Sven Helge","last_name":"Klippstein","full_name":"Klippstein, Sven Helge"},{"id":"464","first_name":"Hans-Joachim","last_name":"Schmid","orcid":"000-0001-8590-1921","full_name":"Schmid, Hans-Joachim"}],"publication_identifier":{"isbn":[" 978-3-18-990139-9"],"eisbn":[" 978-3-18-990140-5"],"issn":["0083-5560"]},"status":"public","title":"Correlation between SLS-Powder processability and particle properties ","year":"2023","user_id":"38188","publisher":"VDI Verlag GmbH","_id":"47626","language":[{"iso":"eng"}],"page":"172 - 176","citation":{"apa":"Rüther, M. J., Klippstein, S. H., &#38; Schmid, H.-J. (2023). Correlation between SLS-Powder processability and particle properties . <i>PARTEC International Congress on Particle Technology - Book of Abstracts</i>, 172–176.","ieee":"M. J. Rüther, S. H. Klippstein, and H.-J. Schmid, “Correlation between SLS-Powder processability and particle properties ,” in <i>PARTEC International Congress on Particle Technology - Book of Abstracts</i>, Nürnberg, 2023, pp. 172–176.","short":"M.J. Rüther, S.H. Klippstein, H.-J. Schmid, in: PARTEC International Congress on Particle Technology - Book of Abstracts, VDI Verlag GmbH, Düsseldorf, 2023, pp. 172–176.","chicago":"Rüther, Moritz Johannes, Sven Helge Klippstein, and Hans-Joachim Schmid. “Correlation between SLS-Powder Processability and Particle Properties .” In <i>PARTEC International Congress on Particle Technology - Book of Abstracts</i>, 172–76. Düsseldorf: VDI Verlag GmbH, 2023.","mla":"Rüther, Moritz Johannes, et al. “Correlation between SLS-Powder Processability and Particle Properties .” <i>PARTEC International Congress on Particle Technology - Book of Abstracts</i>, VDI Verlag GmbH, 2023, pp. 172–76.","ama":"Rüther MJ, Klippstein SH, Schmid H-J. Correlation between SLS-Powder processability and particle properties . In: <i>PARTEC International Congress on Particle Technology - Book of Abstracts</i>. VDI Verlag GmbH; 2023:172-176.","bibtex":"@inproceedings{Rüther_Klippstein_Schmid_2023, place={Düsseldorf}, title={Correlation between SLS-Powder processability and particle properties }, booktitle={PARTEC International Congress on Particle Technology - Book of Abstracts}, publisher={VDI Verlag GmbH}, author={Rüther, Moritz Johannes and Klippstein, Sven Helge and Schmid, Hans-Joachim}, year={2023}, pages={172–176} }"},"publication":"PARTEC International Congress on Particle Technology - Book of Abstracts","department":[{"_id":"150"},{"_id":"624"}],"type":"conference_abstract","place":"Düsseldorf","date_created":"2023-10-05T08:09:21Z"},{"citation":{"bibtex":"@inproceedings{Henkenjohann_Nolte_Henke_Trächtler_2023, title={Novel Cascaded Incremental Nonlinear Dynamic Inversion Controller Approach for a Tiltrotor VTOL}, DOI={<a href=\"https://doi.org/10.1109/icuas57906.2023.10156317\">10.1109/icuas57906.2023.10156317</a>}, booktitle={2023 International Conference on Unmanned Aircraft Systems (ICUAS)}, publisher={IEEE}, author={Henkenjohann, Mark and Nolte, Udo and Henke, Christian and Trächtler, Ansgar}, year={2023} }","chicago":"Henkenjohann, Mark, Udo Nolte, Christian Henke, and Ansgar Trächtler. “Novel Cascaded Incremental Nonlinear Dynamic Inversion Controller Approach for a Tiltrotor VTOL.” In <i>2023 International Conference on Unmanned Aircraft Systems (ICUAS)</i>. IEEE, 2023. <a href=\"https://doi.org/10.1109/icuas57906.2023.10156317\">https://doi.org/10.1109/icuas57906.2023.10156317</a>.","short":"M. Henkenjohann, U. Nolte, C. Henke, A. Trächtler, in: 2023 International Conference on Unmanned Aircraft Systems (ICUAS), IEEE, 2023.","ama":"Henkenjohann M, Nolte U, Henke C, Trächtler A. Novel Cascaded Incremental Nonlinear Dynamic Inversion Controller Approach for a Tiltrotor VTOL. In: <i>2023 International Conference on Unmanned Aircraft Systems (ICUAS)</i>. IEEE; 2023. doi:<a href=\"https://doi.org/10.1109/icuas57906.2023.10156317\">10.1109/icuas57906.2023.10156317</a>","ieee":"M. Henkenjohann, U. Nolte, C. Henke, and A. Trächtler, “Novel Cascaded Incremental Nonlinear Dynamic Inversion Controller Approach for a Tiltrotor VTOL,” 2023, doi: <a href=\"https://doi.org/10.1109/icuas57906.2023.10156317\">10.1109/icuas57906.2023.10156317</a>.","mla":"Henkenjohann, Mark, et al. “Novel Cascaded Incremental Nonlinear Dynamic Inversion Controller Approach for a Tiltrotor VTOL.” <i>2023 International Conference on Unmanned Aircraft Systems (ICUAS)</i>, IEEE, 2023, doi:<a href=\"https://doi.org/10.1109/icuas57906.2023.10156317\">10.1109/icuas57906.2023.10156317</a>.","apa":"Henkenjohann, M., Nolte, U., Henke, C., &#38; Trächtler, A. (2023). Novel Cascaded Incremental Nonlinear Dynamic Inversion Controller Approach for a Tiltrotor VTOL. <i>2023 International Conference on Unmanned Aircraft Systems (ICUAS)</i>. <a href=\"https://doi.org/10.1109/icuas57906.2023.10156317\">https://doi.org/10.1109/icuas57906.2023.10156317</a>"},"publication":"2023 International Conference on Unmanned Aircraft Systems (ICUAS)","quality_controlled":"1","date_created":"2023-10-31T15:47:14Z","department":[{"_id":"153"},{"_id":"241"}],"type":"conference","author":[{"full_name":"Henkenjohann, Mark","last_name":"Henkenjohann","first_name":"Mark"},{"first_name":"Udo","last_name":"Nolte","full_name":"Nolte, Udo"},{"first_name":"Christian","last_name":"Henke","full_name":"Henke, Christian"},{"first_name":"Ansgar","last_name":"Trächtler","full_name":"Trächtler, Ansgar","id":"552"}],"status":"public","title":"Novel Cascaded Incremental Nonlinear Dynamic Inversion Controller Approach for a Tiltrotor VTOL","year":"2023","publication_status":"published","date_updated":"2023-10-31T15:47:55Z","language":[{"iso":"eng"}],"_id":"48577","publisher":"IEEE","user_id":"41470","doi":"10.1109/icuas57906.2023.10156317"}]