[{"keyword":["wireless mobile networks","network management","continuous control","cognitive networks","autonomous coordination","reinforcement learning","gym environment","simulation","open source"],"type":"conference","department":[{"_id":"75"}],"file":[{"creator":"stschn","date_created":"2022-03-10T18:25:41Z","file_name":"author_version.pdf","access_level":"open_access","file_size":223412,"relation":"main_file","date_updated":"2022-03-10T18:25:41Z","file_id":"30237","content_type":"application/pdf"}],"date_created":"2022-03-10T18:28:14Z","abstract":[{"text":"Recent reinforcement learning approaches for continuous control in wireless mobile networks have shown impressive\r\nresults. But due to the lack of open and compatible simulators, authors typically create their own simulation environments for training and evaluation. This is cumbersome and time-consuming for authors and limits reproducibility and comparability, ultimately impeding progress in the field.\r\n\r\nTo this end, we propose mobile-env, a simple and open platform for training, evaluating, and comparing reinforcement learning and conventional approaches for continuous control in mobile wireless networks. mobile-env is lightweight and implements the common OpenAI Gym interface and additional wrappers, which allows connecting virtually any single-agent or multi-agent reinforcement learning framework to the environment. While mobile-env provides sensible default values and can be used out of the box, it also has many configuration options and is easy to extend. We therefore believe mobile-env to be a valuable platform for driving meaningful progress in autonomous coordination of\r\nwireless mobile networks.","lang":"eng"}],"publication":"IEEE/IFIP Network Operations and Management Symposium (NOMS)","language":[{"iso":"eng"}],"date_updated":"2022-03-10T18:28:19Z","year":"2022","title":"mobile-env: An Open Platform for Reinforcement Learning in Wireless Mobile Networks","author":[{"id":"35343","full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011","first_name":"Stefan Balthasar","last_name":"Schneider"},{"first_name":"Stefan","last_name":"Werner","full_name":"Werner, Stefan"},{"first_name":"Ramin","last_name":"Khalili","full_name":"Khalili, Ramin"},{"full_name":"Hecker, Artur","last_name":"Hecker","first_name":"Artur"},{"id":"126","last_name":"Karl","first_name":"Holger","full_name":"Karl, Holger"}],"oa":"1","quality_controlled":"1","project":[{"name":"SFB 901: SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - C: SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - C4: SFB 901 - Subproject C4"}],"file_date_updated":"2022-03-10T18:25:41Z","citation":{"mla":"Schneider, Stefan Balthasar, et al. “Mobile-Env: An Open Platform for Reinforcement Learning in Wireless Mobile Networks.” IEEE/IFIP Network Operations and Management Symposium (NOMS), IEEE, 2022.","ama":"Schneider SB, Werner S, Khalili R, Hecker A, Karl H. mobile-env: An Open Platform for Reinforcement Learning in Wireless Mobile Networks. In: IEEE/IFIP Network Operations and Management Symposium (NOMS). IEEE; 2022.","bibtex":"@inproceedings{Schneider_Werner_Khalili_Hecker_Karl_2022, title={mobile-env: An Open Platform for Reinforcement Learning in Wireless Mobile Networks}, booktitle={IEEE/IFIP Network Operations and Management Symposium (NOMS)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Werner, Stefan and Khalili, Ramin and Hecker, Artur and Karl, Holger}, year={2022} }","apa":"Schneider, S. B., Werner, S., Khalili, R., Hecker, A., & Karl, H. (2022). mobile-env: An Open Platform for Reinforcement Learning in Wireless Mobile Networks. IEEE/IFIP Network Operations and Management Symposium (NOMS). IEEE/IFIP Network Operations and Management Symposium (NOMS), Budapest.","ieee":"S. B. Schneider, S. Werner, R. Khalili, A. Hecker, and H. Karl, “mobile-env: An Open Platform for Reinforcement Learning in Wireless Mobile Networks,” presented at the IEEE/IFIP Network Operations and Management Symposium (NOMS), Budapest, 2022.","short":"S.B. Schneider, S. Werner, R. Khalili, A. Hecker, H. Karl, in: IEEE/IFIP Network Operations and Management Symposium (NOMS), IEEE, 2022.","chicago":"Schneider, Stefan Balthasar, Stefan Werner, Ramin Khalili, Artur Hecker, and Holger Karl. “Mobile-Env: An Open Platform for Reinforcement Learning in Wireless Mobile Networks.” In IEEE/IFIP Network Operations and Management Symposium (NOMS). IEEE, 2022."},"user_id":"35343","ddc":["004"],"_id":"30236","publisher":"IEEE","has_accepted_license":"1","status":"public","conference":{"name":"IEEE/IFIP Network Operations and Management Symposium (NOMS)","start_date":"2022-04-25","location":"Budapest","end_date":"2022-04-29"}},{"abstract":[{"text":"Distributed, software-intensive systems (e.g., in the automotive sector) must fulfill communication requirements under hard real-time constraints. The requirements have to be documented and validated carefully using a systematic requirements engineering (RE) approach, for example, by applying scenario-based requirements notations. The resources of the execution platforms and their properties (e.g., CPU frequency or bus throughput) induce effects on the timing behavior, which may lead to violations of the real-time requirements. Nowadays, the platform properties and their induced timing effects are verified against the real-time requirements by means of timing analysis techniques mostly implemented in commercial-off-the-shelf tools. However, such timing analyses are conducted in late development phases since they rely on artifacts produced during these phases (e.g., the platform-specific code). In order to enable early timing analyses already during RE, we extend a scenario-based requirements notation with allocation means to platform models and define operational semantics for the purpose of simulation-based, platform-aware timing analyses. We illustrate and evaluate the approach with an automotive software-intensive system.","lang":"eng"}],"citation":{"apa":"Holtmann, J., Deantoni, J., & Fockel, M. (2022). Early timing analysis based on scenario requirements and platform models. Software and Systems Modeling. https://doi.org/10.1007/s10270-022-01002-3","ieee":"J. Holtmann, J. Deantoni, and M. Fockel, “Early timing analysis based on scenario requirements and platform models,” Software and Systems Modeling, 2022, doi: 10.1007/s10270-022-01002-3.","chicago":"Holtmann, Jörg, Julien Deantoni, and Markus Fockel. “Early Timing Analysis Based on Scenario Requirements and Platform Models.” Software and Systems Modeling, 2022. https://doi.org/10.1007/s10270-022-01002-3.","short":"J. Holtmann, J. Deantoni, M. Fockel, Software and Systems Modeling (2022).","mla":"Holtmann, Jörg, et al. “Early Timing Analysis Based on Scenario Requirements and Platform Models.” Software and Systems Modeling, Springer Science and Business Media LLC, 2022, doi:10.1007/s10270-022-01002-3.","ama":"Holtmann J, Deantoni J, Fockel M. Early timing analysis based on scenario requirements and platform models. Software and Systems Modeling. Published online 2022. doi:10.1007/s10270-022-01002-3","bibtex":"@article{Holtmann_Deantoni_Fockel_2022, title={Early timing analysis based on scenario requirements and platform models}, DOI={10.1007/s10270-022-01002-3}, journal={Software and Systems Modeling}, publisher={Springer Science and Business Media LLC}, author={Holtmann, Jörg and Deantoni, Julien and Fockel, Markus}, year={2022} }"},"publication":"Software and Systems Modeling","department":[{"_id":"241"},{"_id":"662"}],"keyword":["Modeling and Simulation","Software"],"type":"journal_article","date_created":"2022-05-05T14:05:32Z","date_updated":"2022-05-05T14:09:41Z","publication_status":"published","author":[{"orcid":"0000-0001-6141-4571","last_name":"Holtmann","first_name":"Jörg","full_name":"Holtmann, Jörg","id":"3875"},{"full_name":"Deantoni, Julien","first_name":"Julien","last_name":"Deantoni"},{"full_name":"Fockel, Markus","orcid":"0000-0002-1269-0702","last_name":"Fockel","first_name":"Markus","id":"8472"}],"publication_identifier":{"issn":["1619-1366","1619-1374"]},"title":"Early timing analysis based on scenario requirements and platform models","year":"2022","status":"public","doi":"10.1007/s10270-022-01002-3","user_id":"8472","language":[{"iso":"eng"}],"_id":"31071","publisher":"Springer Science and Business Media LLC"},{"doi":"10.1109/ssi56489.2022.9901416","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://ieeexplore.ieee.org/document/9901416"}],"publication_status":"published","date_updated":"2022-10-04T11:35:11Z","author":[{"full_name":"Lange, Sven","first_name":"Sven","last_name":"Lange","id":"38240"},{"first_name":"Christian","last_name":"Hedayat","full_name":"Hedayat, Christian"},{"last_name":"Kuhn","first_name":"Harald","full_name":"Kuhn, Harald"},{"full_name":"Hilleringmann, Ulrich","last_name":"Hilleringmann","first_name":"Ulrich"}],"publication_identifier":{"eisbn":["978-1-6654-8849-5"]},"title":"Modeling and Characterization of a 3D Environment for the Design of an Inductively Based Locating Method by Coil Couplings","year":"2022","department":[{"_id":"59"},{"_id":"485"}],"type":"conference","keyword":["Simulation Environment","Inductive Localization","Coil Parameters","Inductive Applications","Near-Field"],"date_created":"2022-10-04T11:26:11Z","abstract":[{"text":"In this work, methods will be evaluated to numerically calculate the passive electrical parameters of planar coils. These parameters can then be used to optimize inductive applications such as wireless power transmission. The focus here will be on inductive localization, which uses high-frequency magnetic fields and the resulting induced voltage to provide localization through the coupling parameter mutual inductance. To achieve localization with high accuracy and best possible operation (resonance, signal strength, etc.), the coil parameters need to be well known. For this reason, some numerical methods for the calculation of these quantities are presented and validated. In addition, the physical effects are thereby considered in more detail, allowing the localization procedure to be better optimized compared to simulative black-box methods. The goal should be a dedicated simulation platform for planar coils to be able to develop training data for neural networks and to test and optimize localization algorithms.","lang":"eng"}],"publication":"2022 Smart Systems Integration (SSI)","user_id":"38240","_id":"33508","publisher":"IEEE","conference":{"name":"2022 Smart Systems Integration (SSI)","start_date":"2022-04-27","location":"Grenoble, France","end_date":"2022-04-28"},"status":"public","place":"Grenoble, France","project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"mla":"Lange, Sven, et al. “Modeling and Characterization of a 3D Environment for the Design of an Inductively Based Locating Method by Coil Couplings.” 2022 Smart Systems Integration (SSI), IEEE, 2022, doi:10.1109/ssi56489.2022.9901416.","bibtex":"@inproceedings{Lange_Hedayat_Kuhn_Hilleringmann_2022, place={Grenoble, France}, title={Modeling and Characterization of a 3D Environment for the Design of an Inductively Based Locating Method by Coil Couplings}, DOI={10.1109/ssi56489.2022.9901416}, booktitle={2022 Smart Systems Integration (SSI)}, publisher={IEEE}, author={Lange, Sven and Hedayat, Christian and Kuhn, Harald and Hilleringmann, Ulrich}, year={2022} }","ama":"Lange S, Hedayat C, Kuhn H, Hilleringmann U. Modeling and Characterization of a 3D Environment for the Design of an Inductively Based Locating Method by Coil Couplings. In: 2022 Smart Systems Integration (SSI). IEEE; 2022. doi:10.1109/ssi56489.2022.9901416","ieee":"S. Lange, C. Hedayat, H. Kuhn, and U. Hilleringmann, “Modeling and Characterization of a 3D Environment for the Design of an Inductively Based Locating Method by Coil Couplings,” presented at the 2022 Smart Systems Integration (SSI), Grenoble, France, 2022, doi: 10.1109/ssi56489.2022.9901416.","apa":"Lange, S., Hedayat, C., Kuhn, H., & Hilleringmann, U. (2022). Modeling and Characterization of a 3D Environment for the Design of an Inductively Based Locating Method by Coil Couplings. 2022 Smart Systems Integration (SSI). 2022 Smart Systems Integration (SSI), Grenoble, France. https://doi.org/10.1109/ssi56489.2022.9901416","short":"S. Lange, C. Hedayat, H. Kuhn, U. Hilleringmann, in: 2022 Smart Systems Integration (SSI), IEEE, Grenoble, France, 2022.","chicago":"Lange, Sven, Christian Hedayat, Harald Kuhn, and Ulrich Hilleringmann. “Modeling and Characterization of a 3D Environment for the Design of an Inductively Based Locating Method by Coil Couplings.” In 2022 Smart Systems Integration (SSI). Grenoble, France: IEEE, 2022. https://doi.org/10.1109/ssi56489.2022.9901416."}},{"project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"mla":"Bernemann, Sören Antonius, et al. Development of an Innovative Separation Unit for Nitrogen Recovery from Agricultural Waste. 2022.","ama":"Bernemann SA, Maćkowiak J, Maćkowiak J, Bertling R, Lutters N, Kenig E. Development of an innovative separation unit for nitrogen recovery from agricultural waste. In: ; 2022.","bibtex":"@inproceedings{Bernemann_Maćkowiak_Maćkowiak_Bertling_Lutters_Kenig_2022, title={Development of an innovative separation unit for nitrogen recovery from agricultural waste}, author={Bernemann, Sören Antonius and Maćkowiak, Jan and Maćkowiak, Jerzy and Bertling, René and Lutters, Nicole and Kenig, Eugeny}, year={2022} }","apa":"Bernemann, S. A., Maćkowiak, J., Maćkowiak, J., Bertling, R., Lutters, N., & Kenig, E. (2022). Development of an innovative separation unit for nitrogen recovery from agricultural waste. ACHEMA Congress, Frankfurt am Main.","ieee":"S. A. Bernemann, J. Maćkowiak, J. Maćkowiak, R. Bertling, N. Lutters, and E. Kenig, “Development of an innovative separation unit for nitrogen recovery from agricultural waste,” presented at the ACHEMA Congress, Frankfurt am Main, 2022.","chicago":"Bernemann, Sören Antonius, Jan Maćkowiak, Jerzy Maćkowiak, René Bertling, Nicole Lutters, and Eugeny Kenig. “Development of an Innovative Separation Unit for Nitrogen Recovery from Agricultural Waste,” 2022.","short":"S.A. Bernemann, J. Maćkowiak, J. Maćkowiak, R. Bertling, N. Lutters, E. Kenig, in: 2022."},"keyword":["CFD","simulation","agricultural waste","multiphase"],"type":"conference","department":[{"_id":"9"},{"_id":"145"}],"date_created":"2022-10-05T10:40:21Z","date_updated":"2022-10-05T10:41:01Z","status":"public","title":"Development of an innovative separation unit for nitrogen recovery from agricultural waste","year":"2022","author":[{"first_name":"Sören Antonius","last_name":"Bernemann","full_name":"Bernemann, Sören Antonius","id":"70108"},{"full_name":"Maćkowiak, Jan","last_name":"Maćkowiak","first_name":"Jan"},{"last_name":"Maćkowiak","first_name":"Jerzy","full_name":"Maćkowiak, Jerzy"},{"id":"30050","full_name":"Bertling, René","last_name":"Bertling","first_name":"René"},{"id":"22006","full_name":"Lutters, Nicole","last_name":"Lutters","first_name":"Nicole"},{"id":"665","last_name":"Kenig","first_name":"Eugeny","full_name":"Kenig, Eugeny"}],"conference":{"end_date":"2022-08-26","name":"ACHEMA Congress","start_date":"2022-08-22","location":"Frankfurt am Main"},"user_id":"70108","language":[{"iso":"eng"}],"_id":"33522"},{"publication":"Material Modeling and Structural Mechanics","abstract":[{"lang":"eng","text":"Predicting the durability of components subjected to mechanical load under environmental conditions leading to corrosion is one of the most challenging tasks in mechanical engineering. The demand for precise predictions increases with the desire of lightweight design in transportation due to environmental protection. Corrosion with its manifold of mechanisms often occurs together with the production of hydrogen by electrochemical reactions. Hydrogen embrittlement is one of the most feared damage mechanisms for metal constructions often leading to early and unexpected failure. Until now, predictions are mostly based on costly experiments. Hence, a rational predictive model based on the fundamentals of electrochemistry and damage mechanics has to be developed in order to reduce the costs. In this work, a first model approach based on classical continuum damage mechanics is presented to couple both, the damage induced by the mechanical stress and the hydrogen embrittlement. An elaborated two-scale model based on the selfconsistent theory is applied to describe the mechanical damage due to fatigue. The electrochemical kinetics are elucidated through the Langmuir adsorption isotherm and the diffusion equation to consider the impact of hydrogen embrittlement on the fatigue. The modeling of the mechanism of hydrogen embrittlement defines the progress of damage accumulation due to the electrochemistry. The durability results like the S-N diagram show the influence of hydrogen embrittlement by varying, e.g. the fatigue frequency or the stress ratio."}],"date_created":"2022-12-05T20:53:13Z","department":[{"_id":"630"}],"type":"book_chapter","keyword":["Hydrogen embrittlement","Fatigue","Continuum damage mechanics","Numerical simulation","Multi-field problem"],"author":[{"full_name":"Shi, Yuhao","last_name":"Shi","first_name":"Yuhao"},{"last_name":"Harzheim","first_name":"Sven","full_name":"Harzheim, Sven"},{"last_name":"Hofmann","first_name":"Martin","full_name":"Hofmann, Martin"},{"last_name":"Wallmersperger","first_name":"Thomas","full_name":"Wallmersperger, Thomas"}],"publication_identifier":{"isbn":["9783030976743","9783030976750"],"issn":["1869-8433","1869-8441"]},"title":"A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement","year":"2022","date_updated":"2023-01-02T11:10:26Z","publication_status":"published","language":[{"iso":"eng"}],"doi":"10.1007/978-3-030-97675-0_9","citation":{"ama":"Shi Y, Harzheim S, Hofmann M, Wallmersperger T. A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement. In: Material Modeling and Structural Mechanics. Springer International Publishing; 2022. doi:10.1007/978-3-030-97675-0_9","bibtex":"@inbook{Shi_Harzheim_Hofmann_Wallmersperger_2022, place={Cham}, title={A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement}, DOI={10.1007/978-3-030-97675-0_9}, booktitle={Material Modeling and Structural Mechanics}, publisher={Springer International Publishing}, author={Shi, Yuhao and Harzheim, Sven and Hofmann, Martin and Wallmersperger, Thomas}, year={2022} }","mla":"Shi, Yuhao, et al. “A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement.” Material Modeling and Structural Mechanics, Springer International Publishing, 2022, doi:10.1007/978-3-030-97675-0_9.","short":"Y. Shi, S. Harzheim, M. Hofmann, T. Wallmersperger, in: Material Modeling and Structural Mechanics, Springer International Publishing, Cham, 2022.","chicago":"Shi, Yuhao, Sven Harzheim, Martin Hofmann, and Thomas Wallmersperger. “A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement.” In Material Modeling and Structural Mechanics. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-030-97675-0_9.","apa":"Shi, Y., Harzheim, S., Hofmann, M., & Wallmersperger, T. (2022). A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement. In Material Modeling and Structural Mechanics. Springer International Publishing. https://doi.org/10.1007/978-3-030-97675-0_9","ieee":"Y. Shi, S. Harzheim, M. Hofmann, and T. Wallmersperger, “A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement,” in Material Modeling and Structural Mechanics, Cham: Springer International Publishing, 2022."},"project":[{"name":"TRR 285: TRR 285","grant_number":"418701707","_id":"130"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"_id":"142","name":"TRR 285 – B03: TRR 285 - Subproject B03"}],"place":"Cham","status":"public","_id":"34209","publisher":"Springer International Publishing","user_id":"14931"},{"date_updated":"2023-01-09T16:47:00Z","publication_status":"published","intvolume":" 40","title":"Behavioral Economics for Human-in-the-Loop Control Systems Design: Overconfidence and the Hot Hand Fallacy","year":"2022","author":[{"first_name":"Marius","last_name":"Protte","full_name":"Protte, Marius"},{"full_name":"Fahr, Rene","first_name":"Rene","last_name":"Fahr"},{"full_name":"Quevedo, Daniel E.","last_name":"Quevedo","first_name":"Daniel E."}],"publication_identifier":{"issn":["1066-033X","1941-000X"]},"doi":"10.1109/mcs.2020.3019723","language":[{"iso":"eng"}],"publication":"IEEE Control Systems","issue":"6","type":"journal_article","keyword":["Electrical and Electronic Engineering","Modeling and Simulation","Control and Systems Engineering","Electrical and Electronic Engineering","Modeling and Simulation","Control and Systems Engineering"],"department":[{"_id":"57"}],"date_created":"2023-01-09T16:46:46Z","status":"public","user_id":"158","volume":40,"page":"57-76","_id":"35586","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","citation":{"apa":"Protte, M., Fahr, R., & Quevedo, D. E. (2022). Behavioral Economics for Human-in-the-Loop Control Systems Design: Overconfidence and the Hot Hand Fallacy. IEEE Control Systems, 40(6), 57–76. https://doi.org/10.1109/mcs.2020.3019723","ieee":"M. Protte, R. Fahr, and D. E. Quevedo, “Behavioral Economics for Human-in-the-Loop Control Systems Design: Overconfidence and the Hot Hand Fallacy,” IEEE Control Systems, vol. 40, no. 6, pp. 57–76, 2022, doi: 10.1109/mcs.2020.3019723.","chicago":"Protte, Marius, Rene Fahr, and Daniel E. Quevedo. “Behavioral Economics for Human-in-the-Loop Control Systems Design: Overconfidence and the Hot Hand Fallacy.” IEEE Control Systems 40, no. 6 (2022): 57–76. https://doi.org/10.1109/mcs.2020.3019723.","short":"M. Protte, R. Fahr, D.E. Quevedo, IEEE Control Systems 40 (2022) 57–76.","mla":"Protte, Marius, et al. “Behavioral Economics for Human-in-the-Loop Control Systems Design: Overconfidence and the Hot Hand Fallacy.” IEEE Control Systems, vol. 40, no. 6, Institute of Electrical and Electronics Engineers (IEEE), 2022, pp. 57–76, doi:10.1109/mcs.2020.3019723.","ama":"Protte M, Fahr R, Quevedo DE. Behavioral Economics for Human-in-the-Loop Control Systems Design: Overconfidence and the Hot Hand Fallacy. IEEE Control Systems. 2022;40(6):57-76. doi:10.1109/mcs.2020.3019723","bibtex":"@article{Protte_Fahr_Quevedo_2022, title={Behavioral Economics for Human-in-the-Loop Control Systems Design: Overconfidence and the Hot Hand Fallacy}, volume={40}, DOI={10.1109/mcs.2020.3019723}, number={6}, journal={IEEE Control Systems}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Protte, Marius and Fahr, Rene and Quevedo, Daniel E.}, year={2022}, pages={57–76} }"}},{"status":"public","editor":[{"full_name":"Rudolph, Günter","first_name":"Günter","last_name":"Rudolph"},{"full_name":"Kononova, Anna V.","last_name":"Kononova","first_name":"Anna V."},{"last_name":"Aguirre","first_name":"Hernán","full_name":"Aguirre, Hernán"},{"first_name":"Pascal","last_name":"Kerschke","full_name":"Kerschke, Pascal"},{"full_name":"Ochoa, Gabriela","last_name":"Ochoa","first_name":"Gabriela"},{"full_name":"Tu\\v sar, Tea","last_name":"Tu\\v sar","first_name":"Tea"}],"user_id":"102979","publisher":"Springer International Publishing","_id":"48894","page":"237–249","citation":{"bibtex":"@inproceedings{Nikfarjam_Neumann_Bossek_Neumann_2022, place={Cham}, series={Lecture Notes in Computer Science}, title={Co-Evolutionary Diversity Optimisation for the Traveling Thief Problem}, DOI={10.1007/978-3-031-14714-2_17}, booktitle={Parallel Problem Solving from Nature (PPSN XVII)}, publisher={Springer International Publishing}, author={Nikfarjam, Adel and Neumann, Aneta and Bossek, Jakob and Neumann, Frank}, editor={Rudolph, Günter and Kononova, Anna V. and Aguirre, Hernán and Kerschke, Pascal and Ochoa, Gabriela and Tu\\v sar, Tea}, year={2022}, pages={237–249}, collection={Lecture Notes in Computer Science} }","ama":"Nikfarjam A, Neumann A, Bossek J, Neumann F. Co-Evolutionary Diversity Optimisation for the Traveling Thief Problem. In: Rudolph G, Kononova AV, Aguirre H, Kerschke P, Ochoa G, Tu\\v sar T, eds. Parallel Problem Solving from Nature (PPSN XVII). Lecture Notes in Computer Science. Springer International Publishing; 2022:237–249. doi:10.1007/978-3-031-14714-2_17","mla":"Nikfarjam, Adel, et al. “Co-Evolutionary Diversity Optimisation for the Traveling Thief Problem.” Parallel Problem Solving from Nature (PPSN XVII), edited by Günter Rudolph et al., Springer International Publishing, 2022, pp. 237–249, doi:10.1007/978-3-031-14714-2_17.","short":"A. Nikfarjam, A. Neumann, J. Bossek, F. Neumann, in: G. Rudolph, A.V. Kononova, H. Aguirre, P. Kerschke, G. Ochoa, T. Tu\\v sar (Eds.), Parallel Problem Solving from Nature (PPSN XVII), Springer International Publishing, Cham, 2022, pp. 237–249.","chicago":"Nikfarjam, Adel, Aneta Neumann, Jakob Bossek, and Frank Neumann. “Co-Evolutionary Diversity Optimisation for the Traveling Thief Problem.” In Parallel Problem Solving from Nature (PPSN XVII), edited by Günter Rudolph, Anna V. Kononova, Hernán Aguirre, Pascal Kerschke, Gabriela Ochoa, and Tea Tu\\v sar, 237–249. Lecture Notes in Computer Science. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-14714-2_17.","ieee":"A. Nikfarjam, A. Neumann, J. Bossek, and F. Neumann, “Co-Evolutionary Diversity Optimisation for the Traveling Thief Problem,” in Parallel Problem Solving from Nature (PPSN XVII), 2022, pp. 237–249, doi: 10.1007/978-3-031-14714-2_17.","apa":"Nikfarjam, A., Neumann, A., Bossek, J., & Neumann, F. (2022). Co-Evolutionary Diversity Optimisation for the Traveling Thief Problem. In G. Rudolph, A. V. Kononova, H. Aguirre, P. Kerschke, G. Ochoa, & T. Tu\\v sar (Eds.), Parallel Problem Solving from Nature (PPSN XVII) (pp. 237–249). Springer International Publishing. https://doi.org/10.1007/978-3-031-14714-2_17"},"place":"Cham","date_updated":"2023-12-13T10:49:51Z","publication_status":"published","author":[{"last_name":"Nikfarjam","first_name":"Adel","full_name":"Nikfarjam, Adel"},{"first_name":"Aneta","last_name":"Neumann","full_name":"Neumann, Aneta"},{"id":"102979","last_name":"Bossek","first_name":"Jakob","orcid":"0000-0002-4121-4668","full_name":"Bossek, Jakob"},{"full_name":"Neumann, Frank","last_name":"Neumann","first_name":"Frank"}],"publication_identifier":{"isbn":["978-3-031-14714-2"]},"year":"2022","title":"Co-Evolutionary Diversity Optimisation for the Traveling Thief Problem","doi":"10.1007/978-3-031-14714-2_17","series_title":"Lecture Notes in Computer Science","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Recently different evolutionary computation approaches have been developed that generate sets of high quality diverse solutions for a given optimisation problem. Many studies have considered diversity 1) as a mean to explore niches in behavioural space (quality diversity) or 2) to increase the structural differences of solutions (evolutionary diversity optimisation). In this study, we introduce a co-evolutionary algorithm to simultaneously explore the two spaces for the multi-component traveling thief problem. The results show the capability of the co-evolutionary algorithm to achieve significantly higher diversity compared to the baseline evolutionary diversity algorithms from the literature."}],"extern":"1","publication":"Parallel Problem Solving from Nature (PPSN XVII)","department":[{"_id":"819"}],"type":"conference","keyword":["Co-evolutionary algorithms","Evolutionary diversity optimisation","Quality diversity","Traveling thief problem"],"date_created":"2023-11-14T15:59:00Z"},{"citation":{"short":"H. Garcke, B. Kovács, D. Trautwein, Mathematical Models and Methods in Applied Sciences 32 (2022) 2673–2758.","chicago":"Garcke, Harald, Balázs Kovács, and Dennis Trautwein. “Viscoelastic Cahn–Hilliard Models for Tumor Growth.” Mathematical Models and Methods in Applied Sciences 32, no. 13 (2022): 2673–2758. https://doi.org/10.1142/s0218202522500634.","apa":"Garcke, H., Kovács, B., & Trautwein, D. (2022). Viscoelastic Cahn–Hilliard models for tumor growth. Mathematical Models and Methods in Applied Sciences, 32(13), 2673–2758. https://doi.org/10.1142/s0218202522500634","ieee":"H. Garcke, B. Kovács, and D. Trautwein, “Viscoelastic Cahn–Hilliard models for tumor growth,” Mathematical Models and Methods in Applied Sciences, vol. 32, no. 13, pp. 2673–2758, 2022, doi: 10.1142/s0218202522500634.","ama":"Garcke H, Kovács B, Trautwein D. Viscoelastic Cahn–Hilliard models for tumor growth. Mathematical Models and Methods in Applied Sciences. 2022;32(13):2673-2758. doi:10.1142/s0218202522500634","bibtex":"@article{Garcke_Kovács_Trautwein_2022, title={Viscoelastic Cahn–Hilliard models for tumor growth}, volume={32}, DOI={10.1142/s0218202522500634}, number={13}, journal={Mathematical Models and Methods in Applied Sciences}, publisher={World Scientific Pub Co Pte Ltd}, author={Garcke, Harald and Kovács, Balázs and Trautwein, Dennis}, year={2022}, pages={2673–2758} }","mla":"Garcke, Harald, et al. “Viscoelastic Cahn–Hilliard Models for Tumor Growth.” Mathematical Models and Methods in Applied Sciences, vol. 32, no. 13, World Scientific Pub Co Pte Ltd, 2022, pp. 2673–758, doi:10.1142/s0218202522500634."},"user_id":"100441","volume":32,"page":"2673-2758","_id":"45970","publisher":"World Scientific Pub Co Pte Ltd","status":"public","type":"journal_article","keyword":["Applied Mathematics","Modeling and Simulation"],"department":[{"_id":"841"}],"date_created":"2023-07-10T11:47:27Z","abstract":[{"text":" We introduce a new phase field model for tumor growth where viscoelastic effects are taken into account. The model is derived from basic thermodynamical principles and consists of a convected Cahn–Hilliard equation with source terms for the tumor cells and a convected reaction–diffusion equation with boundary supply for the nutrient. Chemotactic terms, which are essential for the invasive behavior of tumors, are taken into account. The model is completed by a viscoelastic system consisting of the Navier–Stokes equation for the hydrodynamic quantities, and a general constitutive equation with stress relaxation for the left Cauchy–Green tensor associated with the elastic part of the total mechanical response of the viscoelastic material. For a specific choice of the elastic energy density and with an additional dissipative term accounting for stress diffusion, we prove existence of global-in-time weak solutions of the viscoelastic model for tumor growth in two space dimensions [Formula: see text] by the passage to the limit in a fully-discrete finite element scheme where a CFL condition, i.e. [Formula: see text], is required. Moreover, in arbitrary dimensions [Formula: see text], we show stability and existence of solutions for the fully-discrete finite element scheme, where positive definiteness of the discrete Cauchy–Green tensor is proved with a regularization technique that was first introduced by Barrett and Boyaval [Existence and approximation of a (regularized) Oldroyd-B model, Math. Models Methods Appl. Sci. 21 (2011) 1783–1837]. After that, we improve the regularity results in arbitrary dimensions [Formula: see text] and in two dimensions [Formula: see text], where a CFL condition is required. Then, in two dimensions [Formula: see text], we pass to the limit in the discretization parameters and show that subsequences of discrete solutions converge to a global-in-time weak solution. Finally, we present numerical results in two dimensions [Formula: see text]. ","lang":"eng"}],"issue":"13","publication":"Mathematical Models and Methods in Applied Sciences","doi":"10.1142/s0218202522500634","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2024-04-03T09:15:35Z","intvolume":" 32","year":"2022","title":"Viscoelastic Cahn–Hilliard models for tumor growth","author":[{"first_name":"Harald","last_name":"Garcke","full_name":"Garcke, Harald"},{"id":"100441","last_name":"Kovács","first_name":"Balázs","orcid":"0000-0001-9872-3474","full_name":"Kovács, Balázs"},{"last_name":"Trautwein","first_name":"Dennis","full_name":"Trautwein, Dennis"}],"publication_identifier":{"issn":["0218-2025","1793-6314"]}},{"date_created":"2023-02-02T14:27:17Z","type":"journal_article","keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials","General Materials Science","Modeling and Simulation"],"department":[{"_id":"9"},{"_id":"158"}],"publication":"International Journal of Fatigue","article_number":"107235","language":[{"iso":"eng"}],"doi":"10.1016/j.ijfatigue.2022.107235","year":"2022","title":"On the influence of physical vapor deposited thin coatings on the low-cycle fatigue behavior of additively processed Ti-6Al-7Nb alloy","publication_identifier":{"issn":["0142-1123"]},"author":[{"id":"52771","first_name":"Maxwell","last_name":"Hein","orcid":"0000-0002-3732-2236","full_name":"Hein, Maxwell"},{"full_name":"Lopes Dias, Nelson Filipe","first_name":"Nelson Filipe","last_name":"Lopes Dias"},{"full_name":"Kokalj, David","last_name":"Kokalj","first_name":"David"},{"last_name":"Stangier","first_name":"Dominic","full_name":"Stangier, Dominic"},{"id":"48411","first_name":"Kay-Peter","last_name":"Hoyer","full_name":"Hoyer, Kay-Peter"},{"last_name":"Tillmann","first_name":"Wolfgang","full_name":"Tillmann, Wolfgang"},{"id":"43720","last_name":"Schaper","first_name":"Mirko","full_name":"Schaper, Mirko"}],"publication_status":"published","date_updated":"2023-04-27T16:45:58Z","intvolume":" 166","citation":{"apa":"Hein, M., Lopes Dias, N. F., Kokalj, D., Stangier, D., Hoyer, K.-P., Tillmann, W., & Schaper, M. (2022). On the influence of physical vapor deposited thin coatings on the low-cycle fatigue behavior of additively processed Ti-6Al-7Nb alloy. International Journal of Fatigue, 166, Article 107235. https://doi.org/10.1016/j.ijfatigue.2022.107235","ieee":"M. Hein et al., “On the influence of physical vapor deposited thin coatings on the low-cycle fatigue behavior of additively processed Ti-6Al-7Nb alloy,” International Journal of Fatigue, vol. 166, Art. no. 107235, 2022, doi: 10.1016/j.ijfatigue.2022.107235.","chicago":"Hein, Maxwell, Nelson Filipe Lopes Dias, David Kokalj, Dominic Stangier, Kay-Peter Hoyer, Wolfgang Tillmann, and Mirko Schaper. “On the Influence of Physical Vapor Deposited Thin Coatings on the Low-Cycle Fatigue Behavior of Additively Processed Ti-6Al-7Nb Alloy.” International Journal of Fatigue 166 (2022). https://doi.org/10.1016/j.ijfatigue.2022.107235.","short":"M. Hein, N.F. Lopes Dias, D. Kokalj, D. Stangier, K.-P. Hoyer, W. Tillmann, M. Schaper, International Journal of Fatigue 166 (2022).","mla":"Hein, Maxwell, et al. “On the Influence of Physical Vapor Deposited Thin Coatings on the Low-Cycle Fatigue Behavior of Additively Processed Ti-6Al-7Nb Alloy.” International Journal of Fatigue, vol. 166, 107235, Elsevier BV, 2022, doi:10.1016/j.ijfatigue.2022.107235.","ama":"Hein M, Lopes Dias NF, Kokalj D, et al. On the influence of physical vapor deposited thin coatings on the low-cycle fatigue behavior of additively processed Ti-6Al-7Nb alloy. International Journal of Fatigue. 2022;166. doi:10.1016/j.ijfatigue.2022.107235","bibtex":"@article{Hein_Lopes Dias_Kokalj_Stangier_Hoyer_Tillmann_Schaper_2022, title={On the influence of physical vapor deposited thin coatings on the low-cycle fatigue behavior of additively processed Ti-6Al-7Nb alloy}, volume={166}, DOI={10.1016/j.ijfatigue.2022.107235}, number={107235}, journal={International Journal of Fatigue}, publisher={Elsevier BV}, author={Hein, Maxwell and Lopes Dias, Nelson Filipe and Kokalj, David and Stangier, Dominic and Hoyer, Kay-Peter and Tillmann, Wolfgang and Schaper, Mirko}, year={2022} }"},"quality_controlled":"1","_id":"41496","publisher":"Elsevier BV","user_id":"43720","volume":166,"status":"public"},{"citation":{"mla":"Hein, Maxwell, et al. “On the Influence of Physical Vapor Deposited Thin Coatings on the Low-Cycle Fatigue Behavior of Additively Processed Ti-6Al-7Nb Alloy.” International Journal of Fatigue, vol. 166, 107235, Elsevier BV, 2022, doi:10.1016/j.ijfatigue.2022.107235.","ama":"Hein M, Lopes Dias NF, Kokalj D, et al. On the influence of physical vapor deposited thin coatings on the low-cycle fatigue behavior of additively processed Ti-6Al-7Nb alloy. International Journal of Fatigue. 2022;166. doi:10.1016/j.ijfatigue.2022.107235","bibtex":"@article{Hein_Lopes Dias_Kokalj_Stangier_Hoyer_Tillmann_Schaper_2022, title={On the influence of physical vapor deposited thin coatings on the low-cycle fatigue behavior of additively processed Ti-6Al-7Nb alloy}, volume={166}, DOI={10.1016/j.ijfatigue.2022.107235}, number={107235}, journal={International Journal of Fatigue}, publisher={Elsevier BV}, author={Hein, Maxwell and Lopes Dias, Nelson Filipe and Kokalj, David and Stangier, Dominic and Hoyer, Kay-Peter and Tillmann, Wolfgang and Schaper, Mirko}, year={2022} }","apa":"Hein, M., Lopes Dias, N. F., Kokalj, D., Stangier, D., Hoyer, K.-P., Tillmann, W., & Schaper, M. (2022). On the influence of physical vapor deposited thin coatings on the low-cycle fatigue behavior of additively processed Ti-6Al-7Nb alloy. International Journal of Fatigue, 166, Article 107235. https://doi.org/10.1016/j.ijfatigue.2022.107235","ieee":"M. Hein et al., “On the influence of physical vapor deposited thin coatings on the low-cycle fatigue behavior of additively processed Ti-6Al-7Nb alloy,” International Journal of Fatigue, vol. 166, Art. no. 107235, 2022, doi: 10.1016/j.ijfatigue.2022.107235.","short":"M. Hein, N.F. Lopes Dias, D. Kokalj, D. Stangier, K.-P. Hoyer, W. Tillmann, M. Schaper, International Journal of Fatigue 166 (2022).","chicago":"Hein, Maxwell, Nelson Filipe Lopes Dias, David Kokalj, Dominic Stangier, Kay-Peter Hoyer, Wolfgang Tillmann, and Mirko Schaper. “On the Influence of Physical Vapor Deposited Thin Coatings on the Low-Cycle Fatigue Behavior of Additively Processed Ti-6Al-7Nb Alloy.” International Journal of Fatigue 166 (2022). https://doi.org/10.1016/j.ijfatigue.2022.107235."},"user_id":"48411","volume":166,"publisher":"Elsevier BV","_id":"41490","status":"public","type":"journal_article","keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials","General Materials Science","Modeling and Simulation"],"department":[{"_id":"9"},{"_id":"158"}],"date_created":"2023-02-02T14:23:43Z","publication":"International Journal of Fatigue","doi":"10.1016/j.ijfatigue.2022.107235","article_number":"107235","language":[{"iso":"eng"}],"date_updated":"2023-04-27T16:48:10Z","publication_status":"published","intvolume":" 166","year":"2022","title":"On the influence of physical vapor deposited thin coatings on the low-cycle fatigue behavior of additively processed Ti-6Al-7Nb alloy","publication_identifier":{"issn":["0142-1123"]},"author":[{"full_name":"Hein, Maxwell","last_name":"Hein","first_name":"Maxwell"},{"last_name":"Lopes Dias","first_name":"Nelson Filipe","full_name":"Lopes Dias, Nelson Filipe"},{"last_name":"Kokalj","first_name":"David","full_name":"Kokalj, David"},{"last_name":"Stangier","first_name":"Dominic","full_name":"Stangier, Dominic"},{"full_name":"Hoyer, Kay-Peter","first_name":"Kay-Peter","last_name":"Hoyer"},{"first_name":"Wolfgang","last_name":"Tillmann","full_name":"Tillmann, Wolfgang"},{"full_name":"Schaper, Mirko","last_name":"Schaper","first_name":"Mirko"}]},{"quality_controlled":"1","citation":{"apa":"Simo Kamga, L., Meffert, D., Magyar, B., Oehler, M., & Sauer, B. (2022). Simulative investigation of the influence of surface texturing on the elastohydrodynamic lubrication in chain joints. Tribology International, 171, 107564. https://doi.org/10.1016/j.triboint.2022.107564","ieee":"L. Simo Kamga, D. Meffert, B. Magyar, M. Oehler, and B. Sauer, “Simulative investigation of the influence of surface texturing on the elastohydrodynamic lubrication in chain joints,” Tribology International, vol. 171, p. 107564, 2022, doi: https://doi.org/10.1016/j.triboint.2022.107564.","short":"L. Simo Kamga, D. Meffert, B. Magyar, M. Oehler, B. Sauer, Tribology International 171 (2022) 107564.","chicago":"Simo Kamga, Lionel, Dominik Meffert, Balázs Magyar, Manuel Oehler, and Bernd Sauer. “Simulative Investigation of the Influence of Surface Texturing on the Elastohydrodynamic Lubrication in Chain Joints.” Tribology International 171 (2022): 107564. https://doi.org/10.1016/j.triboint.2022.107564.","mla":"Simo Kamga, Lionel, et al. “Simulative Investigation of the Influence of Surface Texturing on the Elastohydrodynamic Lubrication in Chain Joints.” Tribology International, vol. 171, 2022, p. 107564, doi:https://doi.org/10.1016/j.triboint.2022.107564.","ama":"Simo Kamga L, Meffert D, Magyar B, Oehler M, Sauer B. Simulative investigation of the influence of surface texturing on the elastohydrodynamic lubrication in chain joints. Tribology International. 2022;171:107564. doi:https://doi.org/10.1016/j.triboint.2022.107564","bibtex":"@article{Simo Kamga_Meffert_Magyar_Oehler_Sauer_2022, title={Simulative investigation of the influence of surface texturing on the elastohydrodynamic lubrication in chain joints}, volume={171}, DOI={https://doi.org/10.1016/j.triboint.2022.107564}, journal={Tribology International}, author={Simo Kamga, Lionel and Meffert, Dominik and Magyar, Balázs and Oehler, Manuel and Sauer, Bernd}, year={2022}, pages={107564} }"},"volume":171,"user_id":"97759","_id":"34434","page":"107564","status":"public","department":[{"_id":"146"}],"type":"journal_article","keyword":["EHL-simulation","Cavitation","Chain drives","Chain joint","Micro-structuring"],"date_created":"2022-12-15T09:28:48Z","abstract":[{"text":"In timing chain drives, the chain is the critical component regarding the wear. Relative movements take place at the chain joint between pin and bush, which lead to wear of the chain joint due to friction and so to chain elongation. The chain joint is generally lubricated with oils, through which elastohydrodynamic processes can occur in the gap between the pin and the bush of the chain joint. A simulation model is developed here to examine these elastohydrodynamic processes considering a mass conserving cavitation model, the Newtonian flow behaviour of the lubricant and the structuring of the bush surface, whereby the real form of the bush is considered. MBS simulations are used to obtain realistic loads on the chain joint.","lang":"eng"}],"extern":"1","publication":"Tribology International","doi":"https://doi.org/10.1016/j.triboint.2022.107564","language":[{"iso":"eng"}],"intvolume":" 171","date_updated":"2026-07-18T13:20:50Z","publication_identifier":{"issn":["0301-679X"]},"author":[{"last_name":"Simo Kamga","first_name":"Lionel","full_name":"Simo Kamga, Lionel"},{"first_name":"Dominik","last_name":"Meffert","full_name":"Meffert, Dominik"},{"full_name":"Magyar, Balázs","last_name":"Magyar","first_name":"Balázs","id":"97759"},{"first_name":"Manuel","last_name":"Oehler","full_name":"Oehler, Manuel"},{"last_name":"Sauer","first_name":"Bernd","full_name":"Sauer, Bernd"}],"year":"2022","title":"Simulative investigation of the influence of surface texturing on the elastohydrodynamic lubrication in chain joints"},{"intvolume":" 22","publication_status":"published","date_updated":"2022-01-06T06:56:34Z","author":[{"first_name":"Patrick","last_name":"Delfs","full_name":"Delfs, Patrick"}],"publication_identifier":{"isbn":["978-3-8440-7825-1"]},"title":"Dreidimensionale Oberflächenanalyse und Topografie-Simulation additiv hergestellter Laser-Sinter Bauteile","year":"2021","series_title":"Forschungsberichte des Direct Manufacturing Research Centers","language":[{"iso":"ger"}],"main_file_link":[{"url":"https://www.shaker.de/de/content/catalogue/index.asp?lang=de&ID=8&ISBN=978-3-8440-7825-1&search=yes"}],"abstract":[{"text":"Anwendungen von Laser-Sinter Bauteilen als Sichtteile sind aufgrund der vergleichsweise schlechten Oberflächenqualität sehr begrenzt. In dieser Arbeit werden dreidimensionale Kennwerte benutzt, um die Oberflächenqualität von Laser-Sinter Bauteiloberflächen und die Einflüsse aus unterschiedlichen Bereichen der gesamten Prozesskette zu evaluieren. Beispielsweise wurden objektive Kennwerte, mit deren Hilfe Orangenhaut zu identifizieren ist, und Prozessparameter, die diese deutlich vermindern, gefunden. Mittels Durchführung von haptischen Versuchen wurde das subjektive Empfinden ermittelt und konnten zu objektiven Kennwerten korreliert werden. Eine mikroskopische Betrachtung des flachen Oberflächenwinkels mit verschieden farbigen Pulvern zeigt neue Erkenntnisse zum Anschmelzvorgang von Partikeln an die Schmelze. Zur nachträglichen Glättung von Oberflächen wurden mechanische, chemische und optische Nachbehandlungsmethoden verwendet und deren Potential aufgezeigt. Eine abschließende neuartige Simulation der dreidimensionalen Topografie bildet die Grundlage für ein Programm zur automatischen und funktionsgerechten Orientierung von Bauteilen, welche am Beispiel eines realen Bauteils erfolgreich validiert wurde. Zusammengenommen zeigen die Ergebnisse, dass die richtige Wahl von Bauorientierung und Prozessparametern entscheidend für die Bauteilqualität ist und selbst eine aufwendige Nachbearbeitung eine ungeschickte Wahl derer nur schwerlich ausgleichen kann.\r\n","lang":"ger"}],"department":[{"_id":"150"},{"_id":"624"},{"_id":"219"}],"type":"dissertation","keyword":["Additive Fertigung","Oberflächenqualität","3D","Topografie","Simulation","PA12","Laser-Sintern","Rauheit"],"date_created":"2021-09-21T11:36:18Z","status":"public","volume":22,"user_id":"71545","_id":"24760","publisher":"Shaker Verlag GmbH","page":"126","citation":{"short":"P. Delfs, Dreidimensionale Oberflächenanalyse und Topografie-Simulation additiv hergestellter Laser-Sinter Bauteile, Shaker Verlag GmbH, Düren, 2021.","chicago":"Delfs, Patrick. Dreidimensionale Oberflächenanalyse und Topografie-Simulation additiv hergestellter Laser-Sinter Bauteile. Vol. 22. Forschungsberichte des Direct Manufacturing Research Centers. Düren: Shaker Verlag GmbH, 2021.","ieee":"P. Delfs, Dreidimensionale Oberflächenanalyse und Topografie-Simulation additiv hergestellter Laser-Sinter Bauteile, vol. 22. Düren: Shaker Verlag GmbH, 2021.","apa":"Delfs, P. (2021). Dreidimensionale Oberflächenanalyse und Topografie-Simulation additiv hergestellter Laser-Sinter Bauteile (Vol. 22). Shaker Verlag GmbH.","bibtex":"@book{Delfs_2021, place={Düren}, series={Forschungsberichte des Direct Manufacturing Research Centers}, title={Dreidimensionale Oberflächenanalyse und Topografie-Simulation additiv hergestellter Laser-Sinter Bauteile}, volume={22}, publisher={Shaker Verlag GmbH}, author={Delfs, Patrick}, year={2021}, collection={Forschungsberichte des Direct Manufacturing Research Centers} }","ama":"Delfs P. Dreidimensionale Oberflächenanalyse und Topografie-Simulation additiv hergestellter Laser-Sinter Bauteile. Vol 22. Shaker Verlag GmbH; 2021.","mla":"Delfs, Patrick. Dreidimensionale Oberflächenanalyse und Topografie-Simulation additiv hergestellter Laser-Sinter Bauteile. Shaker Verlag GmbH, 2021."},"supervisor":[{"id":"464","last_name":"Schmid","first_name":"Hans-Joachim","full_name":"Schmid, Hans-Joachim"}],"place":"Düren"},{"citation":{"mla":"Kessler, Jan, et al. “Artificial Neural Networks as Trial Wave Functions for Quantum Monte Carlo.” Advanced Theory and Simulations, vol. 4, no. 4, 2000269, Wiley, 2021, doi:10.1002/adts.202000269.","ama":"Kessler J, Calcavecchia F, Kühne T. Artificial Neural Networks as Trial Wave Functions for Quantum Monte Carlo. Advanced Theory and Simulations. 2021;4(4). doi:10.1002/adts.202000269","bibtex":"@article{Kessler_Calcavecchia_Kühne_2021, title={Artificial Neural Networks as Trial Wave Functions for Quantum Monte Carlo}, volume={4}, DOI={10.1002/adts.202000269}, number={42000269}, journal={Advanced Theory and Simulations}, publisher={Wiley}, author={Kessler, Jan and Calcavecchia, Francesco and Kühne, Thomas}, year={2021} }","apa":"Kessler, J., Calcavecchia, F., & Kühne, T. (2021). Artificial Neural Networks as Trial Wave Functions for Quantum Monte Carlo. Advanced Theory and Simulations, 4(4), Article 2000269. https://doi.org/10.1002/adts.202000269","ieee":"J. Kessler, F. Calcavecchia, and T. Kühne, “Artificial Neural Networks as Trial Wave Functions for Quantum Monte Carlo,” Advanced Theory and Simulations, vol. 4, no. 4, Art. no. 2000269, 2021, doi: 10.1002/adts.202000269.","chicago":"Kessler, Jan, Francesco Calcavecchia, and Thomas Kühne. “Artificial Neural Networks as Trial Wave Functions for Quantum Monte Carlo.” Advanced Theory and Simulations 4, no. 4 (2021). https://doi.org/10.1002/adts.202000269.","short":"J. Kessler, F. Calcavecchia, T. Kühne, Advanced Theory and Simulations 4 (2021)."},"status":"public","_id":"33649","publisher":"Wiley","volume":4,"user_id":"71051","publication":"Advanced Theory and Simulations","issue":"4","date_created":"2022-10-10T08:15:23Z","department":[{"_id":"613"}],"keyword":["Multidisciplinary","Modeling and Simulation","Numerical Analysis","Statistics and Probability"],"type":"journal_article","author":[{"id":"65425","first_name":"Jan","last_name":"Kessler","orcid":"0000-0002-8705-6992","full_name":"Kessler, Jan"},{"first_name":"Francesco","last_name":"Calcavecchia","full_name":"Calcavecchia, Francesco"},{"id":"49079","first_name":"Thomas","last_name":"Kühne","full_name":"Kühne, Thomas"}],"publication_identifier":{"issn":["2513-0390","2513-0390"]},"year":"2021","title":"Artificial Neural Networks as Trial Wave Functions for Quantum Monte Carlo","intvolume":" 4","date_updated":"2022-10-10T08:15:37Z","publication_status":"published","language":[{"iso":"eng"}],"article_number":"2000269","doi":"10.1002/adts.202000269"},{"status":"public","_id":"35575","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","page":"58-78","volume":41,"user_id":"158","citation":{"chicago":"Schulze Darup, Moritz, Andreea B. Alexandru, Daniel E. Quevedo, and George J. Pappas. “Encrypted Control for Networked Systems: An Illustrative Introduction and Current Challenges.” IEEE Control Systems 41, no. 3 (2021): 58–78. https://doi.org/10.1109/mcs.2021.3062956.","short":"M. Schulze Darup, A.B. Alexandru, D.E. Quevedo, G.J. Pappas, IEEE Control Systems 41 (2021) 58–78.","apa":"Schulze Darup, M., Alexandru, A. B., Quevedo, D. E., & Pappas, G. J. (2021). Encrypted Control for Networked Systems: An Illustrative Introduction and Current Challenges. IEEE Control Systems, 41(3), 58–78. https://doi.org/10.1109/mcs.2021.3062956","ieee":"M. Schulze Darup, A. B. Alexandru, D. E. Quevedo, and G. J. Pappas, “Encrypted Control for Networked Systems: An Illustrative Introduction and Current Challenges,” IEEE Control Systems, vol. 41, no. 3, pp. 58–78, 2021, doi: 10.1109/mcs.2021.3062956.","ama":"Schulze Darup M, Alexandru AB, Quevedo DE, Pappas GJ. Encrypted Control for Networked Systems: An Illustrative Introduction and Current Challenges. IEEE Control Systems. 2021;41(3):58-78. doi:10.1109/mcs.2021.3062956","bibtex":"@article{Schulze Darup_Alexandru_Quevedo_Pappas_2021, title={Encrypted Control for Networked Systems: An Illustrative Introduction and Current Challenges}, volume={41}, DOI={10.1109/mcs.2021.3062956}, number={3}, journal={IEEE Control Systems}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Schulze Darup, Moritz and Alexandru, Andreea B. and Quevedo, Daniel E. and Pappas, George J.}, year={2021}, pages={58–78} }","mla":"Schulze Darup, Moritz, et al. “Encrypted Control for Networked Systems: An Illustrative Introduction and Current Challenges.” IEEE Control Systems, vol. 41, no. 3, Institute of Electrical and Electronics Engineers (IEEE), 2021, pp. 58–78, doi:10.1109/mcs.2021.3062956."},"author":[{"full_name":"Schulze Darup, Moritz","last_name":"Schulze Darup","first_name":"Moritz"},{"full_name":"Alexandru, Andreea B.","last_name":"Alexandru","first_name":"Andreea B."},{"full_name":"Quevedo, Daniel E.","first_name":"Daniel E.","last_name":"Quevedo"},{"full_name":"Pappas, George J.","first_name":"George J.","last_name":"Pappas"}],"publication_identifier":{"issn":["1066-033X","1941-000X"]},"year":"2021","title":"Encrypted Control for Networked Systems: An Illustrative Introduction and Current Challenges","intvolume":" 41","publication_status":"published","date_updated":"2023-01-09T16:43:23Z","language":[{"iso":"eng"}],"doi":"10.1109/mcs.2021.3062956","publication":"IEEE Control Systems","issue":"3","extern":"1","date_created":"2023-01-09T16:33:35Z","department":[{"_id":"622"}],"type":"journal_article","keyword":["Electrical and Electronic Engineering","Modeling and Simulation","Control and Systems Engineering","Electrical and Electronic Engineering","Modeling and Simulation","Control and Systems Engineering"]},{"user_id":"45779","volume":883,"page":"81-88","_id":"21811","publisher":"Trans Tech Publications Ltd","status":"public","quality_controlled":"1","citation":{"mla":"Rossel, Moritz Sebastian, et al. “Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes.” Sheet Metal 2021, vol. 883, Trans Tech Publications Ltd, 2021, pp. 81–88, doi:10.4028/www.scientific.net/KEM.883.81.","ama":"Rossel MS, Böhnke M, Bielak CR, Bobbert M, Meschut G. Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes. In: Sheet Metal 2021. Vol 883. Key Engineering Materials. Trans Tech Publications Ltd; 2021:81-88. doi:10.4028/www.scientific.net/KEM.883.81","bibtex":"@inproceedings{Rossel_Böhnke_Bielak_Bobbert_Meschut_2021, series={Key Engineering Materials}, title={Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes}, volume={883}, DOI={10.4028/www.scientific.net/KEM.883.81}, booktitle={Sheet Metal 2021}, publisher={Trans Tech Publications Ltd}, author={Rossel, Moritz Sebastian and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}, year={2021}, pages={81–88}, collection={Key Engineering Materials} }","apa":"Rossel, M. S., Böhnke, M., Bielak, C. R., Bobbert, M., & Meschut, G. (2021). Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes. Sheet Metal 2021, 883, 81–88. https://doi.org/10.4028/www.scientific.net/KEM.883.81","ieee":"M. S. Rossel, M. Böhnke, C. R. Bielak, M. Bobbert, and G. Meschut, “Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes,” in Sheet Metal 2021, 2021, vol. 883, pp. 81–88, doi: 10.4028/www.scientific.net/KEM.883.81.","chicago":"Rossel, Moritz Sebastian, Max Böhnke, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes.” In Sheet Metal 2021, 883:81–88. Key Engineering Materials. Trans Tech Publications Ltd, 2021. https://doi.org/10.4028/www.scientific.net/KEM.883.81.","short":"M.S. Rossel, M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut, in: Sheet Metal 2021, Trans Tech Publications Ltd, 2021, pp. 81–88."},"doi":"10.4028/www.scientific.net/KEM.883.81","language":[{"iso":"eng"}],"series_title":"Key Engineering Materials","date_updated":"2024-03-11T08:15:08Z","publication_status":"published","intvolume":" 883","title":"Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes","year":"2021","author":[{"id":"44503","full_name":"Rossel, Moritz Sebastian","last_name":"Rossel","first_name":"Moritz Sebastian"},{"full_name":"Böhnke, Max","first_name":"Max","last_name":"Böhnke","id":"45779"},{"id":"34782","full_name":"Bielak, Christian Roman","last_name":"Bielak","first_name":"Christian Roman"},{"id":"7850","last_name":"Bobbert","first_name":"Mathias","full_name":"Bobbert, Mathias"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","full_name":"Meschut, Gerson","id":"32056"}],"keyword":["Tribology","Sheet Metal","Simulation"],"type":"conference","department":[{"_id":"157"}],"date_created":"2021-04-28T06:12:54Z","abstract":[{"text":"In order to reduce the fuel consumption and consequently the greenhouse emissions, the automotive industry is implementing lightweight constructions in the body in white production. As a result, the use of aluminum alloys is continuously increasing. Due to poor weldability of aluminum in combination with other materials, mechanical joining technologies like clinching are increasingly used. In order to predict relevant characteristics of clinched joints and to ensure the reliability of the process, it is simulated numerically during product development processes. In this regard the predictive accuracy of the simulated process highly depends on the implemented friction model. In particular, the frictional behavior between the sheet metals affects the geometrical formation of the clinched joint significantly. This paper presents a testing method, which enables to determine the frictional coefficients between sheet metal materials for the simulation of clinching processes. For this purpose, the correlation of interface pressure and the relative velocity between aluminum sheets in clinching processes is investigated using numerical simulation. Furthermore, the developed testing method focuses on the specimen geometry as well as the reproduction of the occurring friction conditions between two sheet metal materials in clinching processes. Based on a methodical approach the test setup is explained and the functionality of the method is proven by experimental tests using sheet metal material EN AW6014. ","lang":"eng"}],"publication":"Sheet Metal 2021"},{"doi":"10.1016/j.jmatprotec.2021.117182","language":[{"iso":"eng"}],"article_number":"117182","intvolume":" 296","publication_status":"published","date_updated":"2024-06-25T08:04:43Z","publication_identifier":{"issn":["0924-0136"]},"author":[{"full_name":"Han, Daxin","last_name":"Han","first_name":"Daxin","id":"36544"},{"id":"65085","first_name":"Keke","orcid":"0000-0001-9201-9304","last_name":"Yang","full_name":"Yang, Keke"},{"last_name":"Meschut","orcid":"0000-0002-2763-1246","first_name":"Gerson","full_name":"Meschut, Gerson","id":"32056"}],"year":"2021","title":"Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative solid self-piercing rivet","department":[{"_id":"157"}],"type":"journal_article","keyword":["Industrial and Manufacturing Engineering","Metals and Alloys","Computer Science Applications","Modeling and Simulation","Ceramics and Composites"],"date_created":"2023-01-21T10:32:47Z","publication":"Journal of Materials Processing Technology","volume":296,"user_id":"65085","_id":"37822","publisher":"Elsevier BV","status":"public","quality_controlled":"1","citation":{"apa":"Han, D., Yang, K., & Meschut, G. (2021). Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative solid self-piercing rivet. Journal of Materials Processing Technology, 296, Article 117182. https://doi.org/10.1016/j.jmatprotec.2021.117182","mla":"Han, Daxin, et al. “Mechanical Joining of Glass Fibre Reinforced Polymer (GFRP) through an Innovative Solid Self-Piercing Rivet.” Journal of Materials Processing Technology, vol. 296, 117182, Elsevier BV, 2021, doi:10.1016/j.jmatprotec.2021.117182.","ieee":"D. Han, K. Yang, and G. Meschut, “Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative solid self-piercing rivet,” Journal of Materials Processing Technology, vol. 296, Art. no. 117182, 2021, doi: 10.1016/j.jmatprotec.2021.117182.","short":"D. Han, K. Yang, G. Meschut, Journal of Materials Processing Technology 296 (2021).","ama":"Han D, Yang K, Meschut G. Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative solid self-piercing rivet. Journal of Materials Processing Technology. 2021;296. doi:10.1016/j.jmatprotec.2021.117182","chicago":"Han, Daxin, Keke Yang, and Gerson Meschut. “Mechanical Joining of Glass Fibre Reinforced Polymer (GFRP) through an Innovative Solid Self-Piercing Rivet.” Journal of Materials Processing Technology 296 (2021). https://doi.org/10.1016/j.jmatprotec.2021.117182.","bibtex":"@article{Han_Yang_Meschut_2021, title={Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative solid self-piercing rivet}, volume={296}, DOI={10.1016/j.jmatprotec.2021.117182}, number={117182}, journal={Journal of Materials Processing Technology}, publisher={Elsevier BV}, author={Han, Daxin and Yang, Keke and Meschut, Gerson}, year={2021} }"}},{"quality_controlled":"1","citation":{"bibtex":"@article{Pramanik_Andreiev_Hoyer_Schaper_2021, title={Quasi in-situ analysis of fracture path during cyclic loading of double-edged U notched additively manufactured FeCo alloy}, volume={153}, DOI={10.1016/j.ijfatigue.2021.106498}, number={106498}, journal={International Journal of Fatigue}, publisher={Elsevier BV}, author={Pramanik, Sudipta and Andreiev, Anatolii and Hoyer, Kay-Peter and Schaper, Mirko}, year={2021} }","ama":"Pramanik S, Andreiev A, Hoyer K-P, Schaper M. Quasi in-situ analysis of fracture path during cyclic loading of double-edged U notched additively manufactured FeCo alloy. International Journal of Fatigue. 2021;153. doi:10.1016/j.ijfatigue.2021.106498","mla":"Pramanik, Sudipta, et al. “Quasi In-Situ Analysis of Fracture Path during Cyclic Loading of Double-Edged U Notched Additively Manufactured FeCo Alloy.” International Journal of Fatigue, vol. 153, 106498, Elsevier BV, 2021, doi:10.1016/j.ijfatigue.2021.106498.","chicago":"Pramanik, Sudipta, Anatolii Andreiev, Kay-Peter Hoyer, and Mirko Schaper. “Quasi In-Situ Analysis of Fracture Path during Cyclic Loading of Double-Edged U Notched Additively Manufactured FeCo Alloy.” International Journal of Fatigue 153 (2021). https://doi.org/10.1016/j.ijfatigue.2021.106498.","short":"S. Pramanik, A. Andreiev, K.-P. Hoyer, M. Schaper, International Journal of Fatigue 153 (2021).","ieee":"S. Pramanik, A. Andreiev, K.-P. Hoyer, and M. Schaper, “Quasi in-situ analysis of fracture path during cyclic loading of double-edged U notched additively manufactured FeCo alloy,” International Journal of Fatigue, vol. 153, Art. no. 106498, 2021, doi: 10.1016/j.ijfatigue.2021.106498.","apa":"Pramanik, S., Andreiev, A., Hoyer, K.-P., & Schaper, M. (2021). Quasi in-situ analysis of fracture path during cyclic loading of double-edged U notched additively manufactured FeCo alloy. International Journal of Fatigue, 153, Article 106498. https://doi.org/10.1016/j.ijfatigue.2021.106498"},"volume":153,"user_id":"43720","_id":"41510","publisher":"Elsevier BV","status":"public","department":[{"_id":"9"},{"_id":"158"}],"keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials","General Materials Science","Modeling and Simulation"],"type":"journal_article","date_created":"2023-02-02T14:33:05Z","publication":"International Journal of Fatigue","doi":"10.1016/j.ijfatigue.2021.106498","language":[{"iso":"eng"}],"article_number":"106498","intvolume":" 153","publication_status":"published","date_updated":"2023-06-01T14:35:13Z","author":[{"first_name":"Sudipta","last_name":"Pramanik","full_name":"Pramanik, Sudipta"},{"last_name":"Andreiev","first_name":"Anatolii","full_name":"Andreiev, Anatolii","id":"50215"},{"id":"48411","last_name":"Hoyer","first_name":"Kay-Peter","full_name":"Hoyer, Kay-Peter"},{"last_name":"Schaper","first_name":"Mirko","full_name":"Schaper, Mirko","id":"43720"}],"publication_identifier":{"issn":["0142-1123"]},"year":"2021","title":"Quasi in-situ analysis of fracture path during cyclic loading of double-edged U notched additively manufactured FeCo alloy"},{"citation":{"apa":"Schemmel, R., Krieger, V., Hemsel, T., & Sextro, W. (2021). Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization. Microelectronics Reliability, 119, 114077. https://doi.org/10.1016/j.microrel.2021.114077","ieee":"R. Schemmel, V. Krieger, T. Hemsel, and W. Sextro, “Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization,” Microelectronics Reliability, vol. 119, p. 114077, 2021, doi: https://doi.org/10.1016/j.microrel.2021.114077.","short":"R. Schemmel, V. Krieger, T. Hemsel, W. Sextro, Microelectronics Reliability 119 (2021) 114077.","chicago":"Schemmel, Reinhard, Viktor Krieger, Tobias Hemsel, and Walter Sextro. “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.” Microelectronics Reliability 119 (2021): 114077. https://doi.org/10.1016/j.microrel.2021.114077.","mla":"Schemmel, Reinhard, et al. “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.” Microelectronics Reliability, vol. 119, 2021, p. 114077, doi:https://doi.org/10.1016/j.microrel.2021.114077.","ama":"Schemmel R, Krieger V, Hemsel T, Sextro W. Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization. Microelectronics Reliability. 2021;119:114077. doi:https://doi.org/10.1016/j.microrel.2021.114077","bibtex":"@article{Schemmel_Krieger_Hemsel_Sextro_2021, title={Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization}, volume={119}, DOI={https://doi.org/10.1016/j.microrel.2021.114077}, journal={Microelectronics Reliability}, author={Schemmel, Reinhard and Krieger, Viktor and Hemsel, Tobias and Sextro, Walter}, year={2021}, pages={114077} }"},"quality_controlled":"1","page":"114077","_id":"21436","user_id":"210","volume":119,"status":"public","date_created":"2021-03-10T09:37:02Z","type":"journal_article","keyword":["Ultrasonic heavy wire bonding","Co-simulation","ANSYS","MATLAB","Process optimization","Friction coefficient","Copper-copper","Aluminium-copper"],"department":[{"_id":"151"}],"publication":"Microelectronics Reliability","abstract":[{"text":"Ultrasonic wire bonding is a solid-state joining process, used in the electronics industry to form electrical connections, e.g. to connect electrical terminals within semiconductor modules. Many process parameters affect the bond strength, such like the bond normal force, ultrasonic power, wire material and bonding frequency. Today, process design, development, and optimization is most likely based on the knowledge of process engineers and is mainly performed by experimental testing. In this contribution, a newly developed simulation tool is presented, to reduce time and costs and efficiently determine optimized process parameter. Based on a co-simulation of MATLAB and ANSYS, the different physical phenomena of the wire bonding process are considered using finite element simulation for the complex plastic deformation of the wire and reduced order models for the transient dynamics of the transducer, wire, substrate and bond formation. The model parameters such as the coefficients of friction between bond tool and wire and between wire and substrate were determined for aluminium and copper wire in experiments with a test rig specially developed for the requirements of heavy wire bonding. To reduce simulation time, for the finite element simulation a restart analysis and high performance computing is utilized. Detailed analysis of the bond formation showed, that the normal pressure distribution in the contact between wire and substrate has high impact on bond formation and distribution of welded areas in the contact area.","lang":"eng"}],"language":[{"iso":"eng"}],"doi":"https://doi.org/10.1016/j.microrel.2021.114077","year":"2021","title":"Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization","publication_identifier":{"issn":["0026-2714"]},"author":[{"id":"28647","full_name":"Schemmel, Reinhard","last_name":"Schemmel","first_name":"Reinhard"},{"full_name":"Krieger, Viktor","first_name":"Viktor","last_name":"Krieger"},{"first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210"},{"id":"21220","first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter"}],"date_updated":"2023-09-21T14:15:33Z","publication_status":"published","intvolume":" 119"},{"year":"2021","title":"Non-linear mean-field modelling of UD composite laminates accounting for average asymmetric plasticity of the matrix, debonding and progressive failure","publication_identifier":{"issn":["1359-8368"]},"author":[{"full_name":"Cheng, C.","last_name":"Cheng","first_name":"C."},{"full_name":"Wang, Z.","first_name":"Z.","last_name":"Wang"},{"last_name":"Jin","first_name":"Z.","full_name":"Jin, Z."},{"first_name":"X.","last_name":"Ju","full_name":"Ju, X."},{"first_name":"Swetlana","last_name":"Schweizer","full_name":"Schweizer, Swetlana","id":"8938"},{"first_name":"Thomas","last_name":"Tröster","full_name":"Tröster, Thomas","id":"553"},{"id":"335","last_name":"Mahnken","first_name":"Rolf","full_name":"Mahnken, Rolf"}],"date_updated":"2025-06-06T08:08:32Z","publication_status":"published","intvolume":" 224","article_number":"109209","language":[{"iso":"eng"}],"doi":"10.1016/j.compositesb.2021.109209","publication":"Composites Part B: Engineering","abstract":[{"text":"As an effective and accurate method for modelling composite materials, mean-field homogenization is still not well studied in modelling non-linear and damage behaviours of UD composites. Investigated micro FE-simulations show that the matrix of UD composites exhibits different average plastic behaviour, named as average asymmetric matrix plasticity (AAMP), when the composite behaves different under shear, longitudinal and transverse loadings. In this study, a non-linear mean-field debonding model (NMFDM) combining a mean-field model and a fibre–matrix interface debonding model, is developed to simulate UD composites under consideration of AAMP, fibre–matrix interface damage and progressive failure. AAMP is considered by using so-called stress mode factor, which is expressed in terms of basic invariants of the matrix deviatoric stress tensor and is used as an indicator for detection of differences in the loading mode. The material behaviour of UD composites with imperfect interface is assumed identical as for perfect interface and stiffness reduced fibres. Progressive failure criteria are established with consideration of fibre breakage and matrix crack for different fibre orientations. As a representative example for the NMFDM, a C30/E201 UD composite is studied. To verify the model, experiments are conducted on polymers, carbon fibres and UD CFRPs. Finally, the model is applied to simulate a perforated CFRP laminate, which shows excellent prediction ability on deformation, debonding and progressive failure.","lang":"eng"}],"date_created":"2021-08-18T06:20:21Z","keyword":["Non-linear mean-field homogenization Average asymmetric plasticity of matrix Fibre–matrix interface debonding Micro-mechanical FE-simulation Progressive failure"],"type":"journal_article","department":[{"_id":"9"},{"_id":"154"},{"_id":"321"},{"_id":"149"}],"status":"public","_id":"23431","user_id":"15952","volume":224,"citation":{"short":"C. Cheng, Z. Wang, Z. Jin, X. Ju, S. Schweizer, T. Tröster, R. Mahnken, Composites Part B: Engineering 224 (2021).","chicago":"Cheng, C., Z. Wang, Z. Jin, X. Ju, Swetlana Schweizer, Thomas Tröster, and Rolf Mahnken. “Non-Linear Mean-Field Modelling of UD Composite Laminates Accounting for Average Asymmetric Plasticity of the Matrix, Debonding and Progressive Failure.” Composites Part B: Engineering 224 (2021). https://doi.org/10.1016/j.compositesb.2021.109209.","apa":"Cheng, C., Wang, Z., Jin, Z., Ju, X., Schweizer, S., Tröster, T., & Mahnken, R. (2021). Non-linear mean-field modelling of UD composite laminates accounting for average asymmetric plasticity of the matrix, debonding and progressive failure. Composites Part B: Engineering, 224, Article 109209. https://doi.org/10.1016/j.compositesb.2021.109209","ieee":"C. Cheng et al., “Non-linear mean-field modelling of UD composite laminates accounting for average asymmetric plasticity of the matrix, debonding and progressive failure,” Composites Part B: Engineering, vol. 224, Art. no. 109209, 2021, doi: 10.1016/j.compositesb.2021.109209.","ama":"Cheng C, Wang Z, Jin Z, et al. Non-linear mean-field modelling of UD composite laminates accounting for average asymmetric plasticity of the matrix, debonding and progressive failure. Composites Part B: Engineering. 2021;224. doi:10.1016/j.compositesb.2021.109209","bibtex":"@article{Cheng_Wang_Jin_Ju_Schweizer_Tröster_Mahnken_2021, title={Non-linear mean-field modelling of UD composite laminates accounting for average asymmetric plasticity of the matrix, debonding and progressive failure}, volume={224}, DOI={10.1016/j.compositesb.2021.109209}, number={109209}, journal={Composites Part B: Engineering}, author={Cheng, C. and Wang, Z. and Jin, Z. and Ju, X. and Schweizer, Swetlana and Tröster, Thomas and Mahnken, Rolf}, year={2021} }","mla":"Cheng, C., et al. “Non-Linear Mean-Field Modelling of UD Composite Laminates Accounting for Average Asymmetric Plasticity of the Matrix, Debonding and Progressive Failure.” Composites Part B: Engineering, vol. 224, 109209, 2021, doi:10.1016/j.compositesb.2021.109209."},"quality_controlled":"1"},{"title":"Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*","year":"2021","author":[{"id":"36303","full_name":"Malena, Kevin","last_name":"Malena","orcid":"0000-0003-1183-4679","first_name":"Kevin"},{"full_name":"Link, Christopher","last_name":"Link","first_name":"Christopher","id":"38249"},{"id":"13195","first_name":"Sven","last_name":"Mertin","full_name":"Mertin, Sven"},{"last_name":"Gausemeier","first_name":"Sandra","full_name":"Gausemeier, Sandra","id":"17793"},{"full_name":"Trächtler, Ansgar","last_name":"Trächtler","first_name":"Ansgar","id":"552"}],"publication_identifier":{"isbn":["978-989-758-513-5"]},"date_updated":"2026-01-26T08:49:53Z","publication_status":"published","intvolume":" 7","main_file_link":[{"url":"https://www.scitepress.org/PublicationsDetail.aspx?ID=3xZWfOSENWk=&t=1"}],"language":[{"iso":"eng"}],"series_title":"VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems","publication":"VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems","related_material":{"link":[{"url":"https://www.scitepress.org/PublicationsDetail.aspx?ID=3xZWfOSENWk=&t=1","relation":"confirmation"}],"record":[{"id":"33849","relation":"is_continued_by","status":"public"}]},"abstract":[{"text":"The online fitting of a microscopic traffic simulation model to reconstruct the current state of a real traffic\r\narea can be challenging depending on the provided data. This paper presents a novel method based on limited\r\ndata from sensors positioned at specific locations and guarantees a general accordance of reality and\r\nsimulation in terms of multimodal road traffic counts and vehicle speeds. In these considerations, the actual\r\npurpose of research is of particular importance. Here, the research aims at improving the traffic flow by\r\ncontrolling the Traffic Light Systems (TLS) of the examined area which is why the current traffic state and\r\nthe route choices of individual road users are the matter of interest. An integer optimization problem is derived\r\nto fit the current simulation to the latest field measurements. The concept can be transferred to any road traffic\r\nnetwork and results in an observation of the current multimodal traffic state matching at the given sensor\r\nposition. First case studies show promosing results in terms of deviations between reality and simulation.","lang":"eng"}],"date_created":"2021-09-10T12:19:14Z","type":"conference","keyword":["Microscopic Traffic Simulation","Online State Estimation","Mixed Road Users","Sensor Fusion","Integer Programming","Route Choice","Vehicle2Infrastructure"],"department":[{"_id":"153"}],"status":"public","conference":{"start_date":"2021-04-28","name":"7th International Conference on Vehicle Technology and Intelligent Transport Systems","location":"Online Streaming","end_date":"2021-04-30"},"page":"386-395","publisher":"SCITEPRESS","_id":"24159","user_id":"36303","volume":7,"citation":{"apa":"Malena, K., Link, C., Mertin, S., Gausemeier, S., & Trächtler, A. (2021). Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*. VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems, 7, 386–395.","ieee":"K. Malena, C. Link, S. Mertin, S. Gausemeier, and A. Trächtler, “Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*,” in VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems, Online Streaming, 2021, vol. 7, pp. 386–395.","chicago":"Malena, Kevin, Christopher Link, Sven Mertin, Sandra Gausemeier, and Ansgar Trächtler. “Online State Estimation for Microscopic Traffic Simulations Using Multiple Data Sources*.” In VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems, 7:386–95. VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems. Portugal: SCITEPRESS, 2021.","short":"K. Malena, C. Link, S. Mertin, S. Gausemeier, A. Trächtler, in: VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems, SCITEPRESS, Portugal, 2021, pp. 386–395.","mla":"Malena, Kevin, et al. “Online State Estimation for Microscopic Traffic Simulations Using Multiple Data Sources*.” VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems, vol. 7, SCITEPRESS, 2021, pp. 386–95.","ama":"Malena K, Link C, Mertin S, Gausemeier S, Trächtler A. Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*. In: VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems. Vol 7. VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems. SCITEPRESS; 2021:386-395.","bibtex":"@inproceedings{Malena_Link_Mertin_Gausemeier_Trächtler_2021, place={Portugal}, series={VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems}, title={Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*}, volume={7}, booktitle={VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems}, publisher={SCITEPRESS}, author={Malena, Kevin and Link, Christopher and Mertin, Sven and Gausemeier, Sandra and Trächtler, Ansgar}, year={2021}, pages={386–395}, collection={VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems} }"},"quality_controlled":"1","project":[{"name":"Pilotprojekt \"Schlosskreuzung\"","_id":"688"}],"place":"Portugal"}]