[{"status":"public","project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285"},{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"}],"date_created":"2020-12-21T08:15:27Z","publication_status":"submitted","author":[{"last_name":"Bielak","id":"34782","first_name":"Christian Roman","full_name":"Bielak, Christian Roman"},{"id":"45779","last_name":"Böhnke","full_name":"Böhnke, Max","first_name":"Max"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","last_name":"Bobbert","id":"7850"},{"first_name":"Gerson","full_name":"Meschut, Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","id":"32056"}],"department":[{"_id":"157"}],"user_id":"34782","title":"Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains","place":"ESAFORM 2021","language":[{"iso":"eng"}],"type":"conference","year":"2021","citation":{"ieee":"C. R. Bielak, M. Böhnke, M. Bobbert, and G. Meschut, “Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains,” presented at the ESAFORM 2021, Lüttich, doi: 10.25518/esaform21.4298.","bibtex":"@inproceedings{Bielak_Böhnke_Bobbert_Meschut, place={ESAFORM 2021}, title={Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains}, DOI={10.25518/esaform21.4298}, author={Bielak, Christian Roman and Böhnke, Max and Bobbert, Mathias and Meschut, Gerson} }","mla":"Bielak, Christian Roman, et al. Further Development of a Numerical Method for Analyzing the Load Capacity of Clinched Joints in Versatile Process Chains. doi:10.25518/esaform21.4298.","apa":"Bielak, C. R., Böhnke, M., Bobbert, M., & Meschut, G. (n.d.). Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains. ESAFORM 2021, Lüttich. https://doi.org/10.25518/esaform21.4298","ama":"Bielak CR, Böhnke M, Bobbert M, Meschut G. Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains. doi:10.25518/esaform21.4298","short":"C.R. Bielak, M. Böhnke, M. Bobbert, G. Meschut, in: ESAFORM 2021, n.d.","chicago":"Bielak, Christian Roman, Max Böhnke, Mathias Bobbert, and Gerson Meschut. “Further Development of a Numerical Method for Analyzing the Load Capacity of Clinched Joints in Versatile Process Chains.” ESAFORM 2021, n.d. https://doi.org/10.25518/esaform21.4298."},"main_file_link":[{"url":"https://popups.uliege.be/esaform21/index.php?id=3418","open_access":"1"}],"oa":"1","doi":"10.25518/esaform21.4298","_id":"20807","date_updated":"2022-03-29T12:55:57Z","conference":{"name":"ESAFORM 2021","start_date":"2021 04 14","location":"Lüttich","end_date":"2021 04 16"}},{"user_id":"68518","title":"Data-driven analysis of cold-formed pin structure characteristics in the context of versatile joining processes","abstract":[{"text":"Due to increasingly strict emission targets and regulatory requirements, especially for companies in the transport industry, the demand for multi-material-systems is continuously rising in order to lower energy consumption. In this context, mechanical joining processes offer an environmentally friendly and flexible alternative to established joining methods, especially in the field of lightweight design. For example, cold-formed cylindrical pin structures show high potentials in joining multi-material-systems without auxiliary elements. The pin structures are joined either by pressing them directly into the joining partner or by caulking with a pre-punched part. However, to evaluate the strength of the joint and to ensure the joining reliability for versatile processes, such as changing joining partners or batch variations, engineering designers currently have only limited design principles available compared to thermal joining processes. Consequently, the design of an optimal pin joint requires cost- and time-intensive experimental investigations and adjustments to design or process parameters. As a solution, data-driven methods offer procedures for structuring data and identifying dependencies between varying process parameters and resulting pin structure characteristics. Motivated by this, the paper presents an approach for the data-driven analysis of cold-formed pin structures and offers a deeper understanding of how versatile processes affect the pin characteristics. Therefore, the application of an intelligent design of experiment in combination with several machine learning methods enable the setup of a best-fitting meta-model. Resulting, the determination of a mathematical model provides the opportunity to accurately estimate the pin height considering only relevant geometrical and process parameters with a prediction quality of 95 %.","lang":"eng"}],"project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285"},{"name":"TRR 285 - B: TRR 285 - Project Area B","_id":"132"},{"_id":"144","name":"TRR 285 – B05: TRR 285 - Subproject B05"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"name":"TRR 285 – C01: TRR 285 - Subproject C01","_id":"145"}],"date_created":"2022-03-28T12:48:01Z","status":"public","volume":1157,"publication":"IOP Conference Series: Materials Science and Engineering","author":[{"last_name":"Römisch","full_name":"Römisch, D.","first_name":"D."},{"last_name":"Zirngibl","first_name":"C.","full_name":"Zirngibl, C."},{"last_name":"Schleich","first_name":"B.","full_name":"Schleich, B."},{"full_name":"Wartzack, S.","first_name":"S.","last_name":"Wartzack"},{"last_name":"Merklein","first_name":"M.","full_name":"Merklein, M."}],"doi":"10.1088/1757-899X/1157/1/012077","_id":"30650","date_updated":"2022-03-29T15:45:44Z","intvolume":" 1157","language":[{"iso":"eng"}],"page":"012077","type":"journal_article","year":"2021","citation":{"mla":"Römisch, D., et al. “Data-Driven Analysis of Cold-Formed Pin Structure Characteristics in the Context of Versatile Joining Processes.” IOP Conference Series: Materials Science and Engineering, vol. 1157, 2021, p. 012077, doi:10.1088/1757-899X/1157/1/012077.","bibtex":"@article{Römisch_Zirngibl_Schleich_Wartzack_Merklein_2021, title={Data-driven analysis of cold-formed pin structure characteristics in the context of versatile joining processes}, volume={1157}, DOI={10.1088/1757-899X/1157/1/012077}, journal={IOP Conference Series: Materials Science and Engineering}, author={Römisch, D. and Zirngibl, C. and Schleich, B. and Wartzack, S. and Merklein, M.}, year={2021}, pages={012077} }","ieee":"D. Römisch, C. Zirngibl, B. Schleich, S. Wartzack, and M. Merklein, “Data-driven analysis of cold-formed pin structure characteristics in the context of versatile joining processes,” IOP Conference Series: Materials Science and Engineering, vol. 1157, p. 012077, 2021, doi: 10.1088/1757-899X/1157/1/012077.","chicago":"Römisch, D., C. Zirngibl, B. Schleich, S. Wartzack, and M. Merklein. “Data-Driven Analysis of Cold-Formed Pin Structure Characteristics in the Context of Versatile Joining Processes.” IOP Conference Series: Materials Science and Engineering 1157 (2021): 012077. https://doi.org/10.1088/1757-899X/1157/1/012077.","short":"D. Römisch, C. Zirngibl, B. Schleich, S. Wartzack, M. Merklein, IOP Conference Series: Materials Science and Engineering 1157 (2021) 012077.","ama":"Römisch D, Zirngibl C, Schleich B, Wartzack S, Merklein M. Data-driven analysis of cold-formed pin structure characteristics in the context of versatile joining processes. IOP Conference Series: Materials Science and Engineering. 2021;1157:012077. doi:10.1088/1757-899X/1157/1/012077","apa":"Römisch, D., Zirngibl, C., Schleich, B., Wartzack, S., & Merklein, M. (2021). Data-driven analysis of cold-formed pin structure characteristics in the context of versatile joining processes. IOP Conference Series: Materials Science and Engineering, 1157, 012077. https://doi.org/10.1088/1757-899X/1157/1/012077"}},{"intvolume":" 1157","_id":"30648","date_updated":"2022-03-29T15:38:11Z","doi":"10.1088/1757-899x/1157/1/012003","citation":{"ama":"Steinfelder C, Kalich J, Brosius A, Füssel U. Numerical and experimental investigation of the transmission moment of clinching points. IOP Conference Series: Materials Science and Engineering. 2021;1157:012003. doi:10.1088/1757-899x/1157/1/012003","short":"C. Steinfelder, J. Kalich, A. Brosius, U. Füssel, IOP Conference Series: Materials Science and Engineering 1157 (2021) 012003.","apa":"Steinfelder, C., Kalich, J., Brosius, A., & Füssel, U. (2021). Numerical and experimental investigation of the transmission moment of clinching points. IOP Conference Series: Materials Science and Engineering, 1157, 012003. https://doi.org/10.1088/1757-899x/1157/1/012003","chicago":"Steinfelder, C., J. Kalich, A. Brosius, and U. Füssel. “Numerical and Experimental Investigation of the Transmission Moment of Clinching Points.” IOP Conference Series: Materials Science and Engineering 1157 (2021): 012003. https://doi.org/10.1088/1757-899x/1157/1/012003.","ieee":"C. Steinfelder, J. Kalich, A. Brosius, and U. Füssel, “Numerical and experimental investigation of the transmission moment of clinching points,” IOP Conference Series: Materials Science and Engineering, vol. 1157, p. 012003, 2021, doi: 10.1088/1757-899x/1157/1/012003.","mla":"Steinfelder, C., et al. “Numerical and Experimental Investigation of the Transmission Moment of Clinching Points.” IOP Conference Series: Materials Science and Engineering, vol. 1157, 2021, p. 012003, doi:10.1088/1757-899x/1157/1/012003.","bibtex":"@article{Steinfelder_Kalich_Brosius_Füssel_2021, title={Numerical and experimental investigation of the transmission moment of clinching points}, volume={1157}, DOI={10.1088/1757-899x/1157/1/012003}, journal={IOP Conference Series: Materials Science and Engineering}, author={Steinfelder, C. and Kalich, J. and Brosius, A. and Füssel, U.}, year={2021}, pages={012003} }"},"year":"2021","type":"journal_article","page":"012003","language":[{"iso":"eng"}],"abstract":[{"text":"In clinching, the combinations of requirements, materials, component dimensions and tools influence the resulting joint geometry and the resulting bonding mechanisms. These in turn affect the property profile of the joint. For example, it is possible to use different tools to flexibly adapt clinching points to the respective required load regime. Clinching points dimensioned in this way can be geometrically similar, but have different mechanical stress states, which leads to different properties in terms of load-bearing behavior. Within the scope of this work, the clinching process with different tools in optimal and compromise design and its effect on the force and form-closure component, is investigated in a torsion test of the clinched connection. Clinched steel sheets with two thicknesses and joining directions are analyzed. Virtual experiments are carried out using finite element analyses (FEA) of the joining process and are followed by a springback simulation. Subsequently, the surface pressure between the two joining partners in the clinching points is calculated on the basis of the results from the FEA and the transmittable moment of the connection, as an indicator for the force-closure component, is determined. Finally, the experimental and simulated data are compared and discussed.","lang":"eng"}],"title":"Numerical and experimental investigation of the transmission moment of clinching points","user_id":"68518","author":[{"first_name":"C.","full_name":"Steinfelder, C.","last_name":"Steinfelder"},{"last_name":"Kalich","first_name":"J.","full_name":"Kalich, J."},{"full_name":"Brosius, A.","first_name":"A.","last_name":"Brosius"},{"full_name":"Füssel, U.","first_name":"U.","last_name":"Füssel"}],"publication":"IOP Conference Series: Materials Science and Engineering","volume":1157,"status":"public","date_created":"2022-03-28T12:43:52Z","project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"138","name":"TRR 285 – A04: TRR 285 - Subproject A04"},{"name":"TRR 285 – B01: TRR 285 - Subproject B01","_id":"140"}]},{"doi":"10.1007/s10443-021-09892-0","_id":"30653","intvolume":" 28","date_updated":"2022-03-29T15:50:53Z","page":"951–972","type":"journal_article","citation":{"ieee":"J. Popp, T. Kleffel, D. Römisch, T. Papke, M. Merklein, and D. Drummer, “Fiber Orientation Mechanism of Continuous Fiber Reinforced Thermoplastics Hybrid Parts Joined with Metallic Pins,” Applied Composite Materials, vol. 28, pp. 951–972, 2021, doi: 10.1007/s10443-021-09892-0.","short":"J. Popp, T. Kleffel, D. Römisch, T. Papke, M. Merklein, D. Drummer, Applied Composite Materials 28 (2021) 951–972.","bibtex":"@article{Popp_Kleffel_Römisch_Papke_Merklein_Drummer_2021, title={Fiber Orientation Mechanism of Continuous Fiber Reinforced Thermoplastics Hybrid Parts Joined with Metallic Pins}, volume={28}, DOI={10.1007/s10443-021-09892-0}, journal={Applied Composite Materials}, author={Popp, J. and Kleffel, T. and Römisch, D. and Papke, T. and Merklein, M. and Drummer, D.}, year={2021}, pages={951–972} }","mla":"Popp, J., et al. “Fiber Orientation Mechanism of Continuous Fiber Reinforced Thermoplastics Hybrid Parts Joined with Metallic Pins.” Applied Composite Materials, vol. 28, 2021, pp. 951–972, doi:10.1007/s10443-021-09892-0.","chicago":"Popp, J., T. Kleffel, D. Römisch, T. Papke, M. Merklein, and D. Drummer. “Fiber Orientation Mechanism of Continuous Fiber Reinforced Thermoplastics Hybrid Parts Joined with Metallic Pins.” Applied Composite Materials 28 (2021): 951–972. https://doi.org/10.1007/s10443-021-09892-0.","apa":"Popp, J., Kleffel, T., Römisch, D., Papke, T., Merklein, M., & Drummer, D. (2021). Fiber Orientation Mechanism of Continuous Fiber Reinforced Thermoplastics Hybrid Parts Joined with Metallic Pins. Applied Composite Materials, 28, 951–972. https://doi.org/10.1007/s10443-021-09892-0","ama":"Popp J, Kleffel T, Römisch D, Papke T, Merklein M, Drummer D. Fiber Orientation Mechanism of Continuous Fiber Reinforced Thermoplastics Hybrid Parts Joined with Metallic Pins. Applied Composite Materials. 2021;28:951–972. doi:10.1007/s10443-021-09892-0"},"year":"2021","language":[{"iso":"eng"}],"title":"Fiber Orientation Mechanism of Continuous Fiber Reinforced Thermoplastics Hybrid Parts Joined with Metallic Pins","user_id":"68518","abstract":[{"lang":"eng","text":"Continuous Fiber Reinforced Thermoplastic (CFRT) hybrid parts offer interesting possibilities for lightweight application, which can exceed the capabilities of mono material metal or CFRT parts. In this case, the joining technology oftentimes is the limiting factor. This study investigates a joining operation with metal pin structures which are additively manufactured via powder bed fusion featuring different diameters and tip geometries, which are inserted into the locally infrared heated CFRT part. The resulting fiber rearrangement is assessed using transmitted light microscopy, confocal laser scanning microscopy as well as micro-computer-tomography. It could be shown that for all assessed pin variants a similar distinct fiber displacement can be seen and that the pin diameter has a significant effect on the resulting fiber orientation with smaller pin diameters being advantageous because of gentle fiber displacement and reduced undulation. The tip geometry has only minor effect on the fiber orientation. Especially in the X/Y plane no systematic influence of the tip geometry on the fiber displacement could be observed. Based on the gained insights a three-stage model of the fiber orientation processes is proposed."}],"volume":28,"project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C01: TRR 285 - Subproject C01","_id":"145"}],"date_created":"2022-03-28T12:53:14Z","status":"public","publication":"Applied Composite Materials","author":[{"first_name":"J.","full_name":"Popp, J.","last_name":"Popp"},{"last_name":"Kleffel","full_name":"Kleffel, T.","first_name":"T."},{"last_name":"Römisch","full_name":"Römisch, D.","first_name":"D."},{"first_name":"T.","full_name":"Papke, T.","last_name":"Papke"},{"full_name":"Merklein, M.","first_name":"M.","last_name":"Merklein"},{"first_name":"D.","full_name":"Drummer, D.","last_name":"Drummer"}]},{"page":"2286","year":"2021","type":"journal_article","citation":{"chicago":"Gröger, B., J. Troschitz, J. Vorderbrüggen, C. Vogel, R. Kupfer, G. Meschut, and M. Gude. “Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies.” Materials 14 (2021): 2286. https://doi.org/10.3390/ma14092286X.","apa":"Gröger, B., Troschitz, J., Vorderbrüggen, J., Vogel, C., Kupfer, R., Meschut, G., & Gude, M. (2021). Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies. Materials, 14, 2286. https://doi.org/10.3390/ma14092286X","ama":"Gröger B, Troschitz J, Vorderbrüggen J, et al. Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies. Materials. 2021;14:2286. doi:10.3390/ma14092286X","bibtex":"@article{Gröger_Troschitz_Vorderbrüggen_Vogel_Kupfer_Meschut_Gude_2021, title={Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies}, volume={14}, DOI={10.3390/ma14092286X}, journal={Materials}, author={Gröger, B. and Troschitz, J. and Vorderbrüggen, J. and Vogel, C. and Kupfer, R. and Meschut, G. and Gude, M.}, year={2021}, pages={2286} }","mla":"Gröger, B., et al. “Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies.” Materials, vol. 14, 2021, p. 2286, doi:10.3390/ma14092286X.","short":"B. Gröger, J. Troschitz, J. Vorderbrüggen, C. Vogel, R. Kupfer, G. Meschut, M. Gude, Materials 14 (2021) 2286.","ieee":"B. Gröger et al., “Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies,” Materials, vol. 14, p. 2286, 2021, doi: 10.3390/ma14092286X."},"language":[{"iso":"eng"}],"intvolume":" 14","_id":"30652","date_updated":"2022-03-29T15:48:59Z","doi":"10.3390/ma14092286X","department":[{"_id":"157"}],"publication":"Materials","author":[{"last_name":"Gröger","full_name":"Gröger, B.","first_name":"B."},{"full_name":"Troschitz, J.","first_name":"J.","last_name":"Troschitz"},{"last_name":"Vorderbrüggen","first_name":"J.","full_name":"Vorderbrüggen, J."},{"first_name":"C.","full_name":"Vogel, C.","last_name":"Vogel"},{"full_name":"Kupfer, R.","first_name":"R.","last_name":"Kupfer"},{"full_name":"Meschut, G.","first_name":"G.","last_name":"Meschut"},{"first_name":"M.","full_name":"Gude, M.","last_name":"Gude"}],"volume":14,"project":[{"name":"TRR 285: TRR 285","grant_number":"418701707","_id":"130"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285 – A03: TRR 285 - Subproject A03","_id":"137"}],"date_created":"2022-03-28T12:51:22Z","status":"public","abstract":[{"text":"Clinching continuous fibre reinforced thermoplastic composites and metals is challenging due to the low ductility of the composite material. Therefore, a number of novel clinching technologies has been developed specifically for these material combinations. A systematic overview of these advanced clinching methods is given in the present paper. With a focus on process design, three selected clinching methods suitable for different joining tasks are described in detail. The clinching processes including equipment and tools, observed process phenomena and the resultant material structure are compared. Process phenomena during joining are explained in general and compared using computed tomography and micrograph images for each process. In addition the load bearing behaviour and the corresponding failure mechanisms are investigated by means of single-lap shear tests. Finally, the new joining technologies are discussed regarding application relevant criteria.","lang":"eng"}],"title":"Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies","user_id":"68518"},{"doi":"10.4028/www.scientific.net/kem.883.41","intvolume":" 883","_id":"30662","date_updated":"2022-03-30T07:57:53Z","language":[{"iso":"eng"}],"page":"41-48","type":"journal_article","year":"2021","citation":{"short":"M. Busch, T. Hausotte, Key Engineering Materials 883 (2021) 41–48.","ieee":"M. Busch and T. Hausotte, “Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks,” Key Engineering Materials, vol. 883, pp. 41–48, 2021, doi: 10.4028/www.scientific.net/kem.883.41.","ama":"Busch M, Hausotte T. Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks. Key Engineering Materials. 2021;883:41-48. doi:10.4028/www.scientific.net/kem.883.41","apa":"Busch, M., & Hausotte, T. (2021). Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks. Key Engineering Materials, 883, 41–48. https://doi.org/10.4028/www.scientific.net/kem.883.41","chicago":"Busch, M., and T. Hausotte. “Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks.” Key Engineering Materials 883 (2021): 41–48. https://doi.org/10.4028/www.scientific.net/kem.883.41.","mla":"Busch, M., and T. Hausotte. “Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks.” Key Engineering Materials, vol. 883, 2021, pp. 41–48, doi:10.4028/www.scientific.net/kem.883.41.","bibtex":"@article{Busch_Hausotte_2021, title={Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks}, volume={883}, DOI={10.4028/www.scientific.net/kem.883.41}, journal={Key Engineering Materials}, author={Busch, M. and Hausotte, T.}, year={2021}, pages={41–48} }"},"user_id":"68518","title":"Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks","abstract":[{"lang":"eng","text":"Industrial X-ray computed tomography (XCT) is a tool for non-destructive testing and a volumetric analysis method with the ability to measure dimensions and geometry inside a component without destroying it. However, XCT is a relatively young technology in the field of dimensional metrology and thus faces several challenges. The achievement of a high measurement resolution, which is re-quired to detect small geometrical features, depends on a variety of influencing factors. In this arti-cle, the interface structural resolution (ISR) as one of the key challenges will be investigated. The two-sphere standard called the hourglass standard allows the determination of the structural resolu-tion by evaluation of the surrounding area of an ideal point contact of two spheres after the CT re-construction in form of a neck-shaped transition. Close to the contact point of the two spheres two opposing surfaces exist. Their distances from each other increase as the distance from the contact point of the two spheres increase. The determination of the distances between the spheres’ surface allows a statement about the ISR. A new developed specimen or standard with a variable gap size consisting of calibrated parallel gauge blocks allows statements about the ISR, too. Because of the higher number of probing points of the gauge block standard the results of the determined ISR are more stable compared to the hourglass standard. This paper compares the results of the computed tomography measurements for the designed interface structural resolution standard with those of the hourglass standard. "}],"project":[{"grant_number":"418701707","name":"TRR 285: TRR 285","_id":"130"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"name":"TRR 285 – C05: TRR 285 - Subproject C05","_id":"149"}],"date_created":"2022-03-28T13:58:55Z","status":"public","volume":883,"publication":"Key Engineering Materials","author":[{"full_name":"Busch, M.","first_name":"M.","last_name":"Busch"},{"first_name":"T.","full_name":"Hausotte, T.","last_name":"Hausotte"}]},{"editor":[{"full_name":"de Campos, Cassio","first_name":"Cassio","last_name":"de Campos"},{"first_name":"Marloes H.","full_name":"Maathuis, Marloes H.","last_name":"Maathuis"}],"volume":161,"status":"public","date_created":"2022-03-30T06:14:16Z","publisher":"PMLR","author":[{"first_name":"Björn","full_name":"Haddenhorst, Björn","last_name":"Haddenhorst"},{"full_name":"Bengs, Viktor","first_name":"Viktor","last_name":"Bengs"},{"last_name":"Brandt","first_name":"Jasmin","full_name":"Brandt, Jasmin"},{"last_name":"Hüllermeier","first_name":"Eyke","full_name":"Hüllermeier, Eyke"}],"publication":"Proceedings of the Thirty-Seventh Conference on Uncertainty in Artificial Intelligence","title":"Testification of Condorcet Winners in dueling bandits","user_id":"38261","abstract":[{"text":"Several algorithms for finding the best arm in the dueling bandits setting assume the existence of a Condorcet winner (CW), that is, an arm that uniformly dominates all other arms. Yet, by simply relying on this assumption but not verifying it, such algorithms may produce doubtful results in cases where it actually fails to hold. Even worse, the problem may not be noticed, and an alleged CW still be produced. In this paper, we therefore address the problem as a ”testification” task, by which we mean a combination of testing and identification: The online identification of the CW is combined with the statistical testing of the CW assumption. Thus, instead of returning a supposed CW at some point, the learner has the possibility to stop sampling and refuse an answer in case it feels confident that the CW assumption is violated. Analyzing the testification problem formally, we derive lower bounds on the expected sample complexity of any online algorithm solving it. Moreover, a concrete algorithm is proposed, which achieves the optimal sample complexity up to logarithmic terms.","lang":"eng"}],"type":"conference","year":"2021","citation":{"bibtex":"@inproceedings{Haddenhorst_Bengs_Brandt_Hüllermeier_2021, series={Proceedings of Machine Learning Research}, title={Testification of Condorcet Winners in dueling bandits}, volume={161}, booktitle={Proceedings of the Thirty-Seventh Conference on Uncertainty in Artificial Intelligence}, publisher={PMLR}, author={Haddenhorst, Björn and Bengs, Viktor and Brandt, Jasmin and Hüllermeier, Eyke}, editor={de Campos, Cassio and Maathuis, Marloes H.}, year={2021}, pages={1195–1205}, collection={Proceedings of Machine Learning Research} }","mla":"Haddenhorst, Björn, et al. “Testification of Condorcet Winners in Dueling Bandits.” Proceedings of the Thirty-Seventh Conference on Uncertainty in Artificial Intelligence, edited by Cassio de Campos and Marloes H. Maathuis, vol. 161, PMLR, 2021, pp. 1195–1205.","chicago":"Haddenhorst, Björn, Viktor Bengs, Jasmin Brandt, and Eyke Hüllermeier. “Testification of Condorcet Winners in Dueling Bandits.” In Proceedings of the Thirty-Seventh Conference on Uncertainty in Artificial Intelligence, edited by Cassio de Campos and Marloes H. Maathuis, 161:1195–1205. Proceedings of Machine Learning Research. PMLR, 2021.","apa":"Haddenhorst, B., Bengs, V., Brandt, J., & Hüllermeier, E. (2021). Testification of Condorcet Winners in dueling bandits. In C. de Campos & M. H. Maathuis (Eds.), Proceedings of the Thirty-Seventh Conference on Uncertainty in Artificial Intelligence (Vol. 161, pp. 1195–1205). PMLR.","ama":"Haddenhorst B, Bengs V, Brandt J, Hüllermeier E. Testification of Condorcet Winners in dueling bandits. In: de Campos C, Maathuis MH, eds. Proceedings of the Thirty-Seventh Conference on Uncertainty in Artificial Intelligence. Vol 161. Proceedings of Machine Learning Research. PMLR; 2021:1195–1205.","ieee":"B. Haddenhorst, V. Bengs, J. Brandt, and E. Hüllermeier, “Testification of Condorcet Winners in dueling bandits,” in Proceedings of the Thirty-Seventh Conference on Uncertainty in Artificial Intelligence, 2021, vol. 161, pp. 1195–1205.","short":"B. Haddenhorst, V. Bengs, J. Brandt, E. Hüllermeier, in: C. de Campos, M.H. Maathuis (Eds.), Proceedings of the Thirty-Seventh Conference on Uncertainty in Artificial Intelligence, PMLR, 2021, pp. 1195–1205."},"page":"1195–1205","language":[{"iso":"eng"}],"series_title":"Proceedings of Machine Learning Research","_id":"30725","intvolume":" 161","date_updated":"2022-03-30T06:15:49Z"},{"publication":"ESAFORM 2021","author":[{"first_name":"D.","full_name":"Köhler, D.","last_name":"Köhler"},{"full_name":"Kupfer, R.","first_name":"R.","last_name":"Kupfer"},{"full_name":"Troschitz, J.","first_name":"J.","last_name":"Troschitz"},{"last_name":"Gude","full_name":"Gude, M.","first_name":"M."}],"date_created":"2022-03-28T13:39:26Z","project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C04: TRR 285 - Subproject C04","_id":"148"}],"status":"public","abstract":[{"text":"In lightweight design, clinching is a cost-efficient solution as the joint is created through localized cold-forming of the joining parts. A clinch point’s quality is usually assessed using ex-situ destructive testing methods. These, however, are unable to detect phenomena immediately during the joining process. For instance, elastic deformations reverse and cracks close after unloading. In-situ methods such as the force-displacement evaluation are used to control a clinching process, though deviations in the clinch point geometry cannot be derived with this method. To overcome these limitations, the clinching process can be investigated using in-situ computed tomography (in-situ CT). However, a clinching tool made of steel would cause strong artefacts and a high attenuation in the CT measurement, reducing the significance of this method. Additionally, when joining parts of the same material, the sheet-sheet interface is hardly detectable. This work aims at identifying, firstly, tool materials that allow artefact-reduced CT measurements during clinching, and, secondly, radiopaque materials that can be applied between the joining parts to enhance the detectability of the sheet-sheet interface. Therefore, both CT-suitable tool materials and radiopaque materials are selected and experimentally investigated. In the clinching process, two aluminium sheets with radiopaque material in between are clinched in a single-step (rotationally symmetric joint without cut section). It is shown that e.g. silicon nitride is suited as tool material and a tin layer is suitable to enhance the detectability of the sheet-sheet interface. ","lang":"eng"}],"user_id":"68518","title":"Clinching in In-situ CT – Experimental Study on Suitable Tool Materials","language":[{"iso":"eng"}],"year":"2021","citation":{"bibtex":"@article{Köhler_Kupfer_Troschitz_Gude_2021, title={Clinching in In-situ CT – Experimental Study on Suitable Tool Materials}, DOI={10.25518/esaform21.2781}, journal={ESAFORM 2021}, author={Köhler, D. and Kupfer, R. and Troschitz, J. and Gude, M.}, year={2021} }","mla":"Köhler, D., et al. “Clinching in In-Situ CT – Experimental Study on Suitable Tool Materials.” ESAFORM 2021, 2021, doi:10.25518/esaform21.2781.","apa":"Köhler, D., Kupfer, R., Troschitz, J., & Gude, M. (2021). Clinching in In-situ CT – Experimental Study on Suitable Tool Materials. ESAFORM 2021. https://doi.org/10.25518/esaform21.2781","ama":"Köhler D, Kupfer R, Troschitz J, Gude M. Clinching in In-situ CT – Experimental Study on Suitable Tool Materials. ESAFORM 2021. Published online 2021. doi:10.25518/esaform21.2781","chicago":"Köhler, D., R. Kupfer, J. Troschitz, and M. Gude. “Clinching in In-Situ CT – Experimental Study on Suitable Tool Materials.” ESAFORM 2021, 2021. https://doi.org/10.25518/esaform21.2781.","ieee":"D. Köhler, R. Kupfer, J. Troschitz, and M. Gude, “Clinching in In-situ CT – Experimental Study on Suitable Tool Materials,” ESAFORM 2021, 2021, doi: 10.25518/esaform21.2781.","short":"D. Köhler, R. Kupfer, J. Troschitz, M. Gude, ESAFORM 2021 (2021)."},"type":"journal_article","date_updated":"2022-03-29T15:53:46Z","_id":"30659","doi":"10.25518/esaform21.2781"},{"date_updated":"2022-03-30T07:53:37Z","_id":"30661","intvolume":" 14","doi":"10.3390/ma14081859","page":"1859","citation":{"chicago":"Köhler, D., R. Kupfer, J. Troschitz, and M. Gude. “In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points.” Materials 14 (2021): 1859. https://doi.org/10.3390/ma14081859.","ama":"Köhler D, Kupfer R, Troschitz J, Gude M. In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points. Materials. 2021;14:1859. doi:10.3390/ma14081859","apa":"Köhler, D., Kupfer, R., Troschitz, J., & Gude, M. (2021). In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points. Materials, 14, 1859. https://doi.org/10.3390/ma14081859","mla":"Köhler, D., et al. “In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points.” Materials, vol. 14, 2021, p. 1859, doi:10.3390/ma14081859.","bibtex":"@article{Köhler_Kupfer_Troschitz_Gude_2021, title={In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points}, volume={14}, DOI={10.3390/ma14081859}, journal={Materials}, author={Köhler, D. and Kupfer, R. and Troschitz, J. and Gude, M.}, year={2021}, pages={1859} }","short":"D. Köhler, R. Kupfer, J. Troschitz, M. Gude, Materials 14 (2021) 1859.","ieee":"D. Köhler, R. Kupfer, J. Troschitz, and M. Gude, “In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points,” Materials, vol. 14, p. 1859, 2021, doi: 10.3390/ma14081859."},"type":"journal_article","year":"2021","language":[{"iso":"eng"}],"abstract":[{"text":"As lightweight design gains more and more attention, time and cost-efficient joining methods such as clinching are becoming more popular. A clinch point’s quality is usually determined by ex situ destructive analyses such as microsectioning. However, these methods do not yield the detection of phenomena occurring during loading such as elastic deformations and cracks that close after unloading. Alternatively, in situ computed tomography (in situ CT) can be used to investigate the loading process of clinch points. In this paper, a method for in situ CT analysis of a single-lap shear test with clinched metal sheets is presented at the example of a clinched joint with two 2 mm thick aluminum sheets. Furthermore, the potential of this method to validate numerical simulations is shown. Since the sheets’ surfaces are locally in contact with each other, the interface between both aluminum sheets and therefore the exact contour of the joining partners is difficult to identify in CT analyses. To compensate for this, the application of copper varnish between the sheets is investigated. The best in situ CT results are achieved with both sheets treated. It showed that with this treatment, in situ CT is suitable to properly observe the three-dimensional deformation behavior and to identify the failure modes.","lang":"eng"}],"title":"In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points","user_id":"68518","publication":"Materials","author":[{"first_name":"D.","full_name":"Köhler, D.","last_name":"Köhler"},{"last_name":"Kupfer","first_name":"R.","full_name":"Kupfer, R."},{"last_name":"Troschitz","first_name":"J.","full_name":"Troschitz, J."},{"full_name":"Gude, M.","first_name":"M.","last_name":"Gude"}],"volume":14,"date_created":"2022-03-28T13:41:29Z","project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"name":"TRR 285 – C04: TRR 285 - Subproject C04","_id":"148"}],"status":"public"},{"status":"public","project":[{"grant_number":"418701707","name":"TRR 285: TRR 285","_id":"130"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"_id":"146","name":"TRR 285 – C02: TRR 285 - Subproject C02"}],"date_created":"2022-03-29T10:35:19Z","volume":883,"author":[{"last_name":"Wituschek","full_name":"Wituschek, S.","first_name":"S."},{"full_name":"Lechner, M.","first_name":"M.","last_name":"Lechner"}],"publication":"Key Engineering Materials","user_id":"68518","title":"Friction Characterisation for a Tumbling Self-Piercing Riveting Process","abstract":[{"lang":"eng","text":"Due to increasing demands regarding ecological and economic specifications in vehicle design, the effort required for production is continuously increasing. One trend is the increased use of multi-material systems, which are characterised by the use of different materials such as high-strength steels or aluminium alloys. In addition to the varying mechanical properties of the components, an increased number of variants accompanied by different geometries is leading to increasing challenges on body construction. For the assembly and connection of the individual components, conventional joining methods reach their limitations. Therefore, new joining methods are necessary, which feature properties of versatility and can adapt to process and disturbance variables. One way of achieving tailored joints is to use a tumbling self-piercing riveting process. For the design of the process route, numerical investigations are necessary for which a characterisation of the friction properties is necessary. This paper therefore investigates the contact and friction conditions that occur in a tumbling self-piercing riveting process. The individual contacts between the process components are identified and based on this, suitable processes for the characterisation of the friction factors - and coefficients are selected and performed."}],"language":[{"iso":"eng"}],"type":"journal_article","year":"2021","citation":{"short":"S. Wituschek, M. Lechner, Key Engineering Materials 883 (2021) 27–34.","ieee":"S. Wituschek and M. Lechner, “Friction Characterisation for a Tumbling Self-Piercing Riveting Process,” Key Engineering Materials, vol. 883, pp. 27–34, 2021, doi: 10.4028/www.scientific.net/kem.883.27.","chicago":"Wituschek, S., and M. Lechner. “Friction Characterisation for a Tumbling Self-Piercing Riveting Process.” Key Engineering Materials 883 (2021): 27–34. https://doi.org/10.4028/www.scientific.net/kem.883.27.","ama":"Wituschek S, Lechner M. Friction Characterisation for a Tumbling Self-Piercing Riveting Process. Key Engineering Materials. 2021;883:27-34. doi:10.4028/www.scientific.net/kem.883.27","apa":"Wituschek, S., & Lechner, M. (2021). Friction Characterisation for a Tumbling Self-Piercing Riveting Process. Key Engineering Materials, 883, 27–34. https://doi.org/10.4028/www.scientific.net/kem.883.27","mla":"Wituschek, S., and M. Lechner. “Friction Characterisation for a Tumbling Self-Piercing Riveting Process.” Key Engineering Materials, vol. 883, 2021, pp. 27–34, doi:10.4028/www.scientific.net/kem.883.27.","bibtex":"@article{Wituschek_Lechner_2021, title={Friction Characterisation for a Tumbling Self-Piercing Riveting Process}, volume={883}, DOI={10.4028/www.scientific.net/kem.883.27}, journal={Key Engineering Materials}, author={Wituschek, S. and Lechner, M.}, year={2021}, pages={27–34} }"},"page":"27-34","doi":"10.4028/www.scientific.net/kem.883.27","_id":"30719","intvolume":" 883","date_updated":"2022-03-29T15:54:33Z"},{"user_id":"38261","title":"Identification of the Generalized Condorcet Winner in Multi-dueling Bandits","status":"public","date_created":"2022-03-30T06:11:16Z","editor":[{"last_name":"Beygelzimer","full_name":"Beygelzimer, A.","first_name":"A."},{"first_name":"Y.","full_name":"Dauphin, Y.","last_name":"Dauphin"},{"full_name":"Liang, P.","first_name":"P.","last_name":"Liang"},{"full_name":"Vaughan, J. Wortman","first_name":"J. Wortman","last_name":"Vaughan"}],"author":[{"full_name":"Haddenhorst, Björn","first_name":"Björn","last_name":"Haddenhorst"},{"first_name":"Viktor","full_name":"Bengs, Viktor","last_name":"Bengs"},{"last_name":"Hüllermeier","first_name":"Eyke","full_name":"Hüllermeier, Eyke"}],"publication":"Advances in Neural Information Processing Systems","_id":"30723","date_updated":"2022-03-30T06:15:53Z","language":[{"iso":"eng"}],"type":"conference","year":"2021","citation":{"short":"B. Haddenhorst, V. Bengs, E. Hüllermeier, in: A. Beygelzimer, Y. Dauphin, P. Liang, J.W. Vaughan (Eds.), Advances in Neural Information Processing Systems, 2021.","ieee":"B. Haddenhorst, V. Bengs, and E. Hüllermeier, “Identification of the Generalized Condorcet Winner in Multi-dueling Bandits,” in Advances in Neural Information Processing Systems, 2021.","ama":"Haddenhorst B, Bengs V, Hüllermeier E. Identification of the Generalized Condorcet Winner in Multi-dueling Bandits. In: Beygelzimer A, Dauphin Y, Liang P, Vaughan JW, eds. Advances in Neural Information Processing Systems. ; 2021.","apa":"Haddenhorst, B., Bengs, V., & Hüllermeier, E. (2021). Identification of the Generalized Condorcet Winner in Multi-dueling Bandits. In A. Beygelzimer, Y. Dauphin, P. Liang, & J. W. Vaughan (Eds.), Advances in Neural Information Processing Systems.","chicago":"Haddenhorst, Björn, Viktor Bengs, and Eyke Hüllermeier. “Identification of the Generalized Condorcet Winner in Multi-Dueling Bandits.” In Advances in Neural Information Processing Systems, edited by A. Beygelzimer, Y. Dauphin, P. Liang, and J. Wortman Vaughan, 2021.","mla":"Haddenhorst, Björn, et al. “Identification of the Generalized Condorcet Winner in Multi-Dueling Bandits.” Advances in Neural Information Processing Systems, edited by A. Beygelzimer et al., 2021.","bibtex":"@inproceedings{Haddenhorst_Bengs_Hüllermeier_2021, title={Identification of the Generalized Condorcet Winner in Multi-dueling Bandits}, booktitle={Advances in Neural Information Processing Systems}, author={Haddenhorst, Björn and Bengs, Viktor and Hüllermeier, Eyke}, editor={Beygelzimer, A. and Dauphin, Y. and Liang, P. and Vaughan, J. Wortman}, year={2021} }"}},{"_id":"17751","date_updated":"2022-04-04T08:24:42Z","language":[{"iso":"ger"}],"type":"encyclopedia_article","citation":{"mla":"Peckhaus, Volker. “Technikphilosophie.” Staatslexikon. Recht, Wirtschaft, Gesellschaft, Bd. 5: Schule - Virtuelle Realität, 8. völlig neu bearbeitete Aufl., Herder Verlag, 2021, pp. 983-991 (Spalten).","bibtex":"@inbook{Peckhaus_2021, place={Freiburg/Basel/Wien}, edition={8. völlig neu bearbeitete Aufl.}, title={Technikphilosophie}, booktitle={Staatslexikon. Recht, Wirtschaft, Gesellschaft, Bd. 5: Schule - Virtuelle Realität}, publisher={Herder Verlag}, author={Peckhaus, Volker}, year={2021}, pages={983-991 (Spalten)} }","chicago":"Peckhaus, Volker. “Technikphilosophie.” In Staatslexikon. Recht, Wirtschaft, Gesellschaft, Bd. 5: Schule - Virtuelle Realität, 8. völlig neu bearbeitete Aufl., 983-991 (Spalten). Freiburg/Basel/Wien: Herder Verlag, 2021.","apa":"Peckhaus, V. (2021). Technikphilosophie. In Staatslexikon. Recht, Wirtschaft, Gesellschaft, Bd. 5: Schule - Virtuelle Realität (8. völlig neu bearbeitete Aufl., pp. 983-991 (Spalten)). Herder Verlag.","ama":"Peckhaus V. Technikphilosophie. In: Staatslexikon. Recht, Wirtschaft, Gesellschaft, Bd. 5: Schule - Virtuelle Realität. 8. völlig neu bearbeitete Aufl. Herder Verlag; 2021:983-991 (Spalten).","ieee":"V. Peckhaus, “Technikphilosophie,” in Staatslexikon. Recht, Wirtschaft, Gesellschaft, Bd. 5: Schule - Virtuelle Realität, 8. völlig neu bearbeitete Aufl., Freiburg/Basel/Wien: Herder Verlag, 2021, pp. 983-991 (Spalten).","short":"V. Peckhaus, in: Staatslexikon. Recht, Wirtschaft, Gesellschaft, Bd. 5: Schule - Virtuelle Realität, 8. völlig neu bearbeitete Aufl., Herder Verlag, Freiburg/Basel/Wien, 2021, pp. 983-991 (Spalten)."},"year":"2021","page":"983-991 (Spalten)","user_id":"59882","title":"Technikphilosophie","place":"Freiburg/Basel/Wien","status":"public","date_created":"2020-08-10T07:33:11Z","publication_status":"published","edition":"8. völlig neu bearbeitete Aufl.","author":[{"full_name":"Peckhaus, Volker","first_name":"Volker","id":"391","last_name":"Peckhaus"}],"publisher":"Herder Verlag","publication":"Staatslexikon. Recht, Wirtschaft, Gesellschaft, Bd. 5: Schule - Virtuelle Realität","department":[{"_id":"520"}]},{"title":"Practical sufficient conditions for convergence of distributed\n optimisation algorithms over communication networks with interference","user_id":"52265","external_id":{"arxiv":["2105.04230"]},"abstract":[{"lang":"eng","text":"Information exchange over networks can be affected by various forms of delay.\nThis causes challenges for using the network by a multi-agent system to solve a\ndistributed optimisation problem. Distributed optimisation schemes, however,\ntypically do not assume network models that are representative for real-world\ncommunication networks, since communication links are most of the time\nabstracted as lossless. Our objective is therefore to formulate a\nrepresentative network model and provide practically verifiable network\nconditions that ensure convergence of distributed algorithms in the presence of\ninterference and possibly unbounded delay. Our network is modelled by a\nsequence of directed-graphs, where to each network link we associate a process\nfor the instantaneous signal-to-interference-plus-noise ratio. We then\nformulate practical conditions that can be verified locally and show that the\nage of information (AoI) associated with data communicated over the network is\nin $\\mathcal{O}(\\sqrt{n})$. Under these conditions we show that a penalty-based\ngradient descent algorithm can be used to solve a rich class of stochastic,\nconstrained, distributed optimisation problems. The strength of our result lies\nin the bridge between practical verifiable network conditions and an abstract\noptimisation theory. We illustrate numerically that our algorithm converges in\nan extreme scenario where the average AoI diverges."}],"date_created":"2022-04-06T06:54:02Z","status":"public","publication":"arXiv:2105.04230","author":[{"last_name":"Redder","full_name":"Redder, Adrian","first_name":"Adrian"},{"last_name":"Ramaswamy","first_name":"Arunselvan","full_name":"Ramaswamy, Arunselvan"},{"first_name":"Holger","full_name":"Karl, Holger","last_name":"Karl"}],"_id":"30792","date_updated":"2022-04-06T08:04:37Z","year":"2021","citation":{"short":"A. Redder, A. Ramaswamy, H. Karl, ArXiv:2105.04230 (2021).","ieee":"A. Redder, A. Ramaswamy, and H. Karl, “Practical sufficient conditions for convergence of distributed optimisation algorithms over communication networks with interference,” arXiv:2105.04230. 2021.","apa":"Redder, A., Ramaswamy, A., & Karl, H. (2021). Practical sufficient conditions for convergence of distributed optimisation algorithms over communication networks with interference. In arXiv:2105.04230.","ama":"Redder A, Ramaswamy A, Karl H. Practical sufficient conditions for convergence of distributed optimisation algorithms over communication networks with interference. arXiv:210504230. Published online 2021.","chicago":"Redder, Adrian, Arunselvan Ramaswamy, and Holger Karl. “Practical Sufficient Conditions for Convergence of Distributed Optimisation Algorithms over Communication Networks with Interference.” ArXiv:2105.04230, 2021.","bibtex":"@article{Redder_Ramaswamy_Karl_2021, title={Practical sufficient conditions for convergence of distributed optimisation algorithms over communication networks with interference}, journal={arXiv:2105.04230}, author={Redder, Adrian and Ramaswamy, Arunselvan and Karl, Holger}, year={2021} }","mla":"Redder, Adrian, et al. “Practical Sufficient Conditions for Convergence of Distributed Optimisation Algorithms over Communication Networks with Interference.” ArXiv:2105.04230, 2021."},"type":"preprint"},{"doi":"10.1007/978-3-030-88942-5","date_updated":"2022-04-11T22:08:12Z","language":[{"iso":"eng"}],"series_title":"Lecture Notes in Computer Science","title":"Ranking Structured Objects with Graph Neural Networks","external_id":{"arxiv":["2104.08869"]},"editor":[{"first_name":"Carlos","full_name":"Soares, Carlos","last_name":"Soares"},{"full_name":"Torgo, Luis","first_name":"Luis","last_name":"Torgo"}],"publication_identifier":{"isbn":["9783030889418","9783030889425"],"issn":["0302-9743","1611-3349"]},"publication_status":"published","department":[{"_id":"355"}],"_id":"27381","intvolume":" 12986","conference":{"end_date":"2021-10-13","start_date":"2021-10-11","name":"24th International Conference on Discovery Science","location":"Halifax, Canada"},"type":"conference","citation":{"short":"C. Damke, E. Hüllermeier, in: C. Soares, L. Torgo (Eds.), Proceedings of The 24th International Conference on Discovery Science (DS 2021), Springer, 2021, pp. 166–180.","ieee":"C. Damke and E. Hüllermeier, “Ranking Structured Objects with Graph Neural Networks,” in Proceedings of The 24th International Conference on Discovery Science (DS 2021), Halifax, Canada, 2021, vol. 12986, pp. 166–180, doi: 10.1007/978-3-030-88942-5.","apa":"Damke, C., & Hüllermeier, E. (2021). Ranking Structured Objects with Graph Neural Networks. In C. Soares & L. Torgo (Eds.), Proceedings of The 24th International Conference on Discovery Science (DS 2021) (Vol. 12986, pp. 166–180). Springer. https://doi.org/10.1007/978-3-030-88942-5","ama":"Damke C, Hüllermeier E. Ranking Structured Objects with Graph Neural Networks. In: Soares C, Torgo L, eds. Proceedings of The 24th International Conference on Discovery Science (DS 2021). Vol 12986. Lecture Notes in Computer Science. Springer; 2021:166-180. doi:10.1007/978-3-030-88942-5","chicago":"Damke, Clemens, and Eyke Hüllermeier. “Ranking Structured Objects with Graph Neural Networks.” In Proceedings of The 24th International Conference on Discovery Science (DS 2021), edited by Carlos Soares and Luis Torgo, 12986:166–80. Lecture Notes in Computer Science. Springer, 2021. https://doi.org/10.1007/978-3-030-88942-5.","mla":"Damke, Clemens, and Eyke Hüllermeier. “Ranking Structured Objects with Graph Neural Networks.” Proceedings of The 24th International Conference on Discovery Science (DS 2021), edited by Carlos Soares and Luis Torgo, vol. 12986, Springer, 2021, pp. 166–80, doi:10.1007/978-3-030-88942-5.","bibtex":"@inproceedings{Damke_Hüllermeier_2021, series={Lecture Notes in Computer Science}, title={Ranking Structured Objects with Graph Neural Networks}, volume={12986}, DOI={10.1007/978-3-030-88942-5}, booktitle={Proceedings of The 24th International Conference on Discovery Science (DS 2021)}, publisher={Springer}, author={Damke, Clemens and Hüllermeier, Eyke}, editor={Soares, Carlos and Torgo, Luis}, year={2021}, pages={166–180}, collection={Lecture Notes in Computer Science} }"},"year":"2021","page":"166-180","user_id":"48192","abstract":[{"text":"Graph neural networks (GNNs) have been successfully applied in many structured data domains, with applications ranging from molecular property prediction to the analysis of social networks. Motivated by the broad applicability of GNNs, we propose the family of so-called RankGNNs, a combination of neural Learning to Rank (LtR) methods and GNNs. RankGNNs are trained with a set of pair-wise preferences between graphs, suggesting that one of them is preferred over the other. One practical application of this problem is drug screening, where an expert wants to find the most promising molecules in a large collection of drug candidates. We empirically demonstrate that our proposed pair-wise RankGNN approach either significantly outperforms or at least matches the ranking performance of the naive point-wise baseline approach, in which the LtR problem is solved via GNN-based graph regression.","lang":"eng"}],"status":"public","date_created":"2021-11-11T14:15:18Z","volume":12986,"author":[{"last_name":"Damke","id":"48192","first_name":"Clemens","full_name":"Damke, Clemens","orcid":"0000-0002-0455-0048"},{"first_name":"Eyke","full_name":"Hüllermeier, Eyke","last_name":"Hüllermeier","id":"48129"}],"quality_controlled":"1","publisher":"Springer","keyword":["Graph-structured data","Graph neural networks","Preference learning","Learning to rank"],"publication":"Proceedings of The 24th International Conference on Discovery Science (DS 2021)"},{"external_id":{"arxiv":["2111.05850"]},"abstract":[{"lang":"eng","text":"Automated machine learning (AutoML) strives for the automatic configuration\r\nof machine learning algorithms and their composition into an overall (software)\r\nsolution - a machine learning pipeline - tailored to the learning task\r\n(dataset) at hand. Over the last decade, AutoML has developed into an\r\nindependent research field with hundreds of contributions. While AutoML offers\r\nmany prospects, it is also known to be quite resource-intensive, which is one\r\nof its major points of criticism. The primary cause for a high resource\r\nconsumption is that many approaches rely on the (costly) evaluation of many\r\nmachine learning pipelines while searching for good candidates. This problem is\r\namplified in the context of research on AutoML methods, due to large scale\r\nexperiments conducted with many datasets and approaches, each of them being run\r\nwith several repetitions to rule out random effects. In the spirit of recent\r\nwork on Green AI, this paper is written in an attempt to raise the awareness of\r\nAutoML researchers for the problem and to elaborate on possible remedies. To\r\nthis end, we identify four categories of actions the community may take towards\r\nmore sustainable research on AutoML, i.e. Green AutoML: design of AutoML\r\nsystems, benchmarking, transparency and research incentives."}],"title":"Towards Green Automated Machine Learning: Status Quo and Future Directions","user_id":"38209","author":[{"last_name":"Tornede","id":"40795","first_name":"Tanja","full_name":"Tornede, Tanja"},{"last_name":"Tornede","id":"38209","first_name":"Alexander","full_name":"Tornede, Alexander"},{"first_name":"Jonas Manuel","full_name":"Hanselle, Jonas Manuel","orcid":"0000-0002-1231-4985","last_name":"Hanselle","id":"43980"},{"id":"33176","last_name":"Wever","orcid":" https://orcid.org/0000-0001-9782-6818","full_name":"Wever, Marcel Dominik","first_name":"Marcel Dominik"},{"last_name":"Mohr","first_name":"Felix","full_name":"Mohr, Felix"},{"last_name":"Hüllermeier","id":"48129","first_name":"Eyke","full_name":"Hüllermeier, Eyke"}],"department":[{"_id":"34"},{"_id":"7"},{"_id":"26"}],"publication":"arXiv:2111.05850","status":"public","project":[{"_id":"1","name":"SFB 901: SFB 901"},{"name":"SFB 901 - B: SFB 901 - Project Area B","_id":"3"},{"_id":"10","name":"SFB 901 - B2: SFB 901 - Subproject B2"}],"date_created":"2022-04-12T11:57:15Z","_id":"30866","date_updated":"2022-04-12T12:01:23Z","citation":{"apa":"Tornede, T., Tornede, A., Hanselle, J. M., Wever, M. D., Mohr, F., & Hüllermeier, E. (2021). Towards Green Automated Machine Learning: Status Quo and Future Directions. In arXiv:2111.05850.","ama":"Tornede T, Tornede A, Hanselle JM, Wever MD, Mohr F, Hüllermeier E. Towards Green Automated Machine Learning: Status Quo and Future Directions. arXiv:211105850. Published online 2021.","chicago":"Tornede, Tanja, Alexander Tornede, Jonas Manuel Hanselle, Marcel Dominik Wever, Felix Mohr, and Eyke Hüllermeier. “Towards Green Automated Machine Learning: Status Quo and Future Directions.” ArXiv:2111.05850, 2021.","mla":"Tornede, Tanja, et al. “Towards Green Automated Machine Learning: Status Quo and Future Directions.” ArXiv:2111.05850, 2021.","bibtex":"@article{Tornede_Tornede_Hanselle_Wever_Mohr_Hüllermeier_2021, title={Towards Green Automated Machine Learning: Status Quo and Future Directions}, journal={arXiv:2111.05850}, author={Tornede, Tanja and Tornede, Alexander and Hanselle, Jonas Manuel and Wever, Marcel Dominik and Mohr, Felix and Hüllermeier, Eyke}, year={2021} }","short":"T. Tornede, A. Tornede, J.M. Hanselle, M.D. Wever, F. Mohr, E. Hüllermeier, ArXiv:2111.05850 (2021).","ieee":"T. Tornede, A. Tornede, J. M. Hanselle, M. D. Wever, F. Mohr, and E. Hüllermeier, “Towards Green Automated Machine Learning: Status Quo and Future Directions,” arXiv:2111.05850. 2021."},"year":"2021","type":"preprint","language":[{"iso":"eng"}]},{"title":"A PLIC-based method for species mass transfer at free fluid interfaces","user_id":"63109","publication_identifier":{"issn":["0009-2509"]},"publication_status":"published","volume":251,"status":"public","date_created":"2022-04-12T11:39:54Z","publisher":"Elsevier BV","author":[{"last_name":"Schulz","first_name":"Andreas","full_name":"Schulz, Andreas"},{"first_name":"Christian","full_name":"Wecker, Christian","last_name":"Wecker"},{"full_name":"Inguva, Venkatesh","first_name":"Venkatesh","last_name":"Inguva"},{"last_name":"Lopatin","full_name":"Lopatin, Alexey S.","first_name":"Alexey S."},{"last_name":"Kenig","first_name":"Eugeny Y.","full_name":"Kenig, Eugeny Y."}],"publication":"Chemical Engineering Science","keyword":["Applied Mathematics","Industrial and Manufacturing Engineering","General Chemical Engineering","General Chemistry"],"article_number":"117357","doi":"10.1016/j.ces.2021.117357","_id":"30864","intvolume":" 251","date_updated":"2022-04-12T11:41:50Z","citation":{"ieee":"A. Schulz, C. Wecker, V. Inguva, A. S. Lopatin, and E. Y. Kenig, “A PLIC-based method for species mass transfer at free fluid interfaces,” Chemical Engineering Science, vol. 251, Art. no. 117357, 2021, doi: 10.1016/j.ces.2021.117357.","short":"A. Schulz, C. Wecker, V. Inguva, A.S. Lopatin, E.Y. Kenig, Chemical Engineering Science 251 (2021).","bibtex":"@article{Schulz_Wecker_Inguva_Lopatin_Kenig_2021, title={A PLIC-based method for species mass transfer at free fluid interfaces}, volume={251}, DOI={10.1016/j.ces.2021.117357}, number={117357}, journal={Chemical Engineering Science}, publisher={Elsevier BV}, author={Schulz, Andreas and Wecker, Christian and Inguva, Venkatesh and Lopatin, Alexey S. and Kenig, Eugeny Y.}, year={2021} }","mla":"Schulz, Andreas, et al. “A PLIC-Based Method for Species Mass Transfer at Free Fluid Interfaces.” Chemical Engineering Science, vol. 251, 117357, Elsevier BV, 2021, doi:10.1016/j.ces.2021.117357.","chicago":"Schulz, Andreas, Christian Wecker, Venkatesh Inguva, Alexey S. Lopatin, and Eugeny Y. Kenig. “A PLIC-Based Method for Species Mass Transfer at Free Fluid Interfaces.” Chemical Engineering Science 251 (2021). https://doi.org/10.1016/j.ces.2021.117357.","ama":"Schulz A, Wecker C, Inguva V, Lopatin AS, Kenig EY. A PLIC-based method for species mass transfer at free fluid interfaces. Chemical Engineering Science. 2021;251. doi:10.1016/j.ces.2021.117357","apa":"Schulz, A., Wecker, C., Inguva, V., Lopatin, A. S., & Kenig, E. Y. (2021). A PLIC-based method for species mass transfer at free fluid interfaces. Chemical Engineering Science, 251, Article 117357. https://doi.org/10.1016/j.ces.2021.117357"},"year":"2021","type":"journal_article","language":[{"iso":"eng"}]},{"year":"2021","type":"dissertation","citation":{"chicago":"Wever, Marcel Dominik. Automated Machine Learning for Multi-Label Classification, 2021. https://doi.org/10.17619/UNIPB/1-1302.","apa":"Wever, M. D. (2021). Automated Machine Learning for Multi-Label Classification. https://doi.org/10.17619/UNIPB/1-1302","ama":"Wever MD. Automated Machine Learning for Multi-Label Classification.; 2021. doi:10.17619/UNIPB/1-1302","mla":"Wever, Marcel Dominik. Automated Machine Learning for Multi-Label Classification. 2021, doi:10.17619/UNIPB/1-1302.","bibtex":"@book{Wever_2021, title={Automated Machine Learning for Multi-Label Classification}, DOI={10.17619/UNIPB/1-1302}, author={Wever, Marcel Dominik}, year={2021} }","short":"M.D. Wever, Automated Machine Learning for Multi-Label Classification, 2021.","ieee":"M. D. Wever, Automated Machine Learning for Multi-Label Classification. 2021."},"supervisor":[{"full_name":"Hüllermeier, Eyke","first_name":"Eyke","id":"48129","last_name":"Hüllermeier"}],"_id":"27284","file_date_updated":"2022-04-13T09:39:56Z","author":[{"id":"33176","last_name":"Wever","full_name":"Wever, Marcel Dominik","orcid":" https://orcid.org/0000-0001-9782-6818","first_name":"Marcel Dominik"}],"file":[{"date_created":"2022-04-13T09:35:25Z","file_name":"dissertation_publish_upload.pdf","access_level":"open_access","file_size":8098177,"creator":"wever","file_id":"30886","date_updated":"2022-04-13T09:39:56Z","content_type":"application/pdf","relation":"main_file"}],"date_created":"2021-11-08T14:05:19Z","status":"public","has_accepted_license":"1","ddc":["000"],"user_id":"33176","language":[{"iso":"eng"}],"date_updated":"2022-04-13T09:39:56Z","doi":"10.17619/UNIPB/1-1302","oa":"1","department":[{"_id":"355"}],"publication_status":"published","project":[{"_id":"1","name":"SFB 901"},{"_id":"3","name":"SFB 901 - Project Area B"},{"_id":"10","name":"SFB 901 - Subproject B2"}],"title":"Automated Machine Learning for Multi-Label Classification"},{"user_id":"398","abstract":[{"lang":"eng","text":"Abstract\r\n Background\r\n Hand amputation can have a truly debilitating impact on the life of the affected person. A multifunctional myoelectric prosthesis controlled using pattern classification can be used to restore some of the lost motor abilities. However, learning to control an advanced prosthesis can be a challenging task, but virtual and augmented reality (AR) provide means to create an engaging and motivating training.\r\n \r\n Methods\r\n In this study, we present a novel training framework that integrates virtual elements within a real scene (AR) while allowing the view from the first-person perspective. The framework was evaluated in 13 able-bodied subjects and a limb-deficient person divided into intervention (IG) and control (CG) groups. The IG received training by performing simulated clothespin task and both groups conducted a pre- and posttest with a real prosthesis. When training with the AR, the subjects received visual feedback on the generated grasping force. The main outcome measure was the number of pins that were successfully transferred within 20 min (task duration), while the number of dropped and broken pins were also registered. The participants were asked to score the difficulty of the real task (posttest), fun-factor and motivation, as well as the utility of the feedback.\r\n \r\n Results\r\n The performance (median/interquartile range) consistently increased during the training sessions (4/3 to 22/4). While the results were similar for the two groups in the pretest, the performance improved in the posttest only in IG. In addition, the subjects in IG transferred significantly more pins (28/10.5 versus 14.5/11), and dropped (1/2.5 versus 3.5/2) and broke (5/3.8 versus 14.5/9) significantly fewer pins in the posttest compared to CG. The participants in IG assigned (mean ± std) significantly lower scores to the difficulty compared to CG (5.2 ± 1.9 versus 7.1 ± 0.9), and they highly rated the fun factor (8.7 ± 1.3) and usefulness of feedback (8.5 ± 1.7).\r\n \r\n Conclusion\r\n The results demonstrated that the proposed AR system allows for the transfer of skills from the simulated to the real task while providing a positive user experience. The present study demonstrates the effectiveness and flexibility of the proposed AR framework. Importantly, the developed system is open source and available for download and further development.\r\n "}],"volume":18,"status":"public","date_created":"2022-04-18T10:02:20Z","author":[{"last_name":"Boschmann","first_name":"Alexander","full_name":"Boschmann, Alexander"},{"last_name":"Neuhaus","first_name":"Dorothee","full_name":"Neuhaus, Dorothee"},{"first_name":"Sarah","full_name":"Vogt, Sarah","last_name":"Vogt"},{"last_name":"Kaltschmidt","first_name":"Christian","full_name":"Kaltschmidt, Christian"},{"full_name":"Platzner, Marco","first_name":"Marco","id":"398","last_name":"Platzner"},{"last_name":"Dosen","full_name":"Dosen, Strahinja","first_name":"Strahinja"}],"publisher":"Springer Science and Business Media LLC","publication":"Journal of NeuroEngineering and Rehabilitation","keyword":["Health Informatics","Rehabilitation"],"article_number":"25","issue":"1","_id":"30906","intvolume":" 18","citation":{"short":"A. Boschmann, D. Neuhaus, S. Vogt, C. Kaltschmidt, M. Platzner, S. Dosen, Journal of NeuroEngineering and Rehabilitation 18 (2021).","ieee":"A. Boschmann, D. Neuhaus, S. Vogt, C. Kaltschmidt, M. Platzner, and S. Dosen, “Immersive augmented reality system for the training of pattern classification control with a myoelectric prosthesis,” Journal of NeuroEngineering and Rehabilitation, vol. 18, no. 1, Art. no. 25, 2021, doi: 10.1186/s12984-021-00822-6.","ama":"Boschmann A, Neuhaus D, Vogt S, Kaltschmidt C, Platzner M, Dosen S. Immersive augmented reality system for the training of pattern classification control with a myoelectric prosthesis. Journal of NeuroEngineering and Rehabilitation. 2021;18(1). doi:10.1186/s12984-021-00822-6","apa":"Boschmann, A., Neuhaus, D., Vogt, S., Kaltschmidt, C., Platzner, M., & Dosen, S. (2021). Immersive augmented reality system for the training of pattern classification control with a myoelectric prosthesis. Journal of NeuroEngineering and Rehabilitation, 18(1), Article 25. https://doi.org/10.1186/s12984-021-00822-6","chicago":"Boschmann, Alexander, Dorothee Neuhaus, Sarah Vogt, Christian Kaltschmidt, Marco Platzner, and Strahinja Dosen. “Immersive Augmented Reality System for the Training of Pattern Classification Control with a Myoelectric Prosthesis.” Journal of NeuroEngineering and Rehabilitation 18, no. 1 (2021). https://doi.org/10.1186/s12984-021-00822-6.","bibtex":"@article{Boschmann_Neuhaus_Vogt_Kaltschmidt_Platzner_Dosen_2021, title={Immersive augmented reality system for the training of pattern classification control with a myoelectric prosthesis}, volume={18}, DOI={10.1186/s12984-021-00822-6}, number={125}, journal={Journal of NeuroEngineering and Rehabilitation}, publisher={Springer Science and Business Media LLC}, author={Boschmann, Alexander and Neuhaus, Dorothee and Vogt, Sarah and Kaltschmidt, Christian and Platzner, Marco and Dosen, Strahinja}, year={2021} }","mla":"Boschmann, Alexander, et al. “Immersive Augmented Reality System for the Training of Pattern Classification Control with a Myoelectric Prosthesis.” Journal of NeuroEngineering and Rehabilitation, vol. 18, no. 1, 25, Springer Science and Business Media LLC, 2021, doi:10.1186/s12984-021-00822-6."},"type":"journal_article","year":"2021","title":"Immersive augmented reality system for the training of pattern classification control with a myoelectric prosthesis","publication_status":"published","publication_identifier":{"issn":["1743-0003"]},"department":[{"_id":"78"}],"doi":"10.1186/s12984-021-00822-6","date_updated":"2022-04-18T10:04:16Z","language":[{"iso":"eng"}]},{"doi":"10.1109/tc.2021.3107196","date_updated":"2022-04-18T10:04:21Z","_id":"30907","language":[{"iso":"eng"}],"citation":{"short":"A. Rodriguez, A. Otero, M. Platzner, E. De la Torre, IEEE Transactions on Computers (2021) 1–1.","ieee":"A. Rodriguez, A. Otero, M. Platzner, and E. De la Torre, “Exploiting Hardware-Based Data-Parallel and Multithreading Models for Smart Edge Computing in Reconfigurable FPGAs,” IEEE Transactions on Computers, pp. 1–1, 2021, doi: 10.1109/tc.2021.3107196.","apa":"Rodriguez, A., Otero, A., Platzner, M., & De la Torre, E. (2021). Exploiting Hardware-Based Data-Parallel and Multithreading Models for Smart Edge Computing in Reconfigurable FPGAs. IEEE Transactions on Computers, 1–1. https://doi.org/10.1109/tc.2021.3107196","ama":"Rodriguez A, Otero A, Platzner M, De la Torre E. Exploiting Hardware-Based Data-Parallel and Multithreading Models for Smart Edge Computing in Reconfigurable FPGAs. IEEE Transactions on Computers. Published online 2021:1-1. doi:10.1109/tc.2021.3107196","chicago":"Rodriguez, Alfonso, Andres Otero, Marco Platzner, and Eduardo De la Torre. “Exploiting Hardware-Based Data-Parallel and Multithreading Models for Smart Edge Computing in Reconfigurable FPGAs.” IEEE Transactions on Computers, 2021, 1–1. https://doi.org/10.1109/tc.2021.3107196.","mla":"Rodriguez, Alfonso, et al. “Exploiting Hardware-Based Data-Parallel and Multithreading Models for Smart Edge Computing in Reconfigurable FPGAs.” IEEE Transactions on Computers, Institute of Electrical and Electronics Engineers (IEEE), 2021, pp. 1–1, doi:10.1109/tc.2021.3107196.","bibtex":"@article{Rodriguez_Otero_Platzner_De la Torre_2021, title={Exploiting Hardware-Based Data-Parallel and Multithreading Models for Smart Edge Computing in Reconfigurable FPGAs}, DOI={10.1109/tc.2021.3107196}, journal={IEEE Transactions on Computers}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Rodriguez, Alfonso and Otero, Andres and Platzner, Marco and De la Torre, Eduardo}, year={2021}, pages={1–1} }"},"year":"2021","type":"journal_article","page":"1-1","user_id":"398","title":"Exploiting Hardware-Based Data-Parallel and Multithreading Models for Smart Edge Computing in Reconfigurable FPGAs","status":"public","date_created":"2022-04-18T10:03:16Z","publication_identifier":{"issn":["0018-9340","1557-9956","2326-3814"]},"publication_status":"published","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","author":[{"first_name":"Alfonso","full_name":"Rodriguez, Alfonso","last_name":"Rodriguez"},{"full_name":"Otero, Andres","first_name":"Andres","last_name":"Otero"},{"last_name":"Platzner","id":"398","first_name":"Marco","full_name":"Platzner, Marco"},{"full_name":"De la Torre, Eduardo","first_name":"Eduardo","last_name":"De la Torre"}],"keyword":["Computational Theory and Mathematics","Hardware and Architecture","Theoretical Computer Science","Software"],"department":[{"_id":"78"}],"publication":"IEEE Transactions on Computers"},{"user_id":"38221","abstract":[{"text":"Wood fiber reinforcement of plastics is almost limited to polypropylene, polyethylene, polyvinyl chloride and polystyrene. Wood fiber reinforcement of thermoplastic polyurethanes (TPU) is a new research field and paltry studied scientifically. Wood fiber reinforcement can carry out synergistic effects between sustainability, material or product price reduction, improved mechanical properties at high elongation, and brilliant appearance and haptics. In order to evaluate to what extent the improvement of mechanical properties depend on material-specific parameters (fiber type, fiber content) and on process-specific parameters (holding pressure, temperature control and injection speed), differently filled compounds were injection molded according to a partial factorial test plan and subjected to characterizing test procedures (tensile test, Shore hardness and notched impact test). Tensile strength showed significant dependence on barrel temperature, fiber type and interaction between holding pressure and barrel temperature in the region of interest. Young’s modulus can be influenced by fiber content but not by fiber type. Notched impact strength showed a significant influence of cylinder temperature, fiber content, fiber type and the interaction between cylinder temperature and fiber content in the region of interest. Shore hardness is related to fiber content and the interaction between mold temperature and injection flow rate. Our results show not only that wood-filled TPU can be processed very well by injection molding, but also that the mechanical properties depend significantly on temperature control in the injection-molding process. Moreover, considering the significant reinforcing effect of the wood fibers, a good fiber-matrix adhesion can be assumed.","lang":"eng"}],"volume":5,"date_created":"2022-04-20T07:57:46Z","status":"public","publication":"Journal of Composites Science","keyword":["Engineering (miscellaneous)","Ceramics and Composites"],"publisher":"MDPI AG","author":[{"first_name":"Elmar","full_name":"Moritzer, Elmar","last_name":"Moritzer"},{"last_name":"Richters","full_name":"Richters, Maximilian","first_name":"Maximilian"}],"quality_controlled":"1","article_number":"316","issue":"12","intvolume":" 5","_id":"30924","citation":{"short":"E. Moritzer, M. Richters, Journal of Composites Science 5 (2021).","ieee":"E. Moritzer and M. Richters, “Injection Molding of Wood-Filled Thermoplastic Polyurethane,” Journal of Composites Science, vol. 5, no. 12, Art. no. 316, 2021, doi: 10.3390/jcs5120316.","chicago":"Moritzer, Elmar, and Maximilian Richters. “Injection Molding of Wood-Filled Thermoplastic Polyurethane.” Journal of Composites Science 5, no. 12 (2021). https://doi.org/10.3390/jcs5120316.","apa":"Moritzer, E., & Richters, M. (2021). Injection Molding of Wood-Filled Thermoplastic Polyurethane. Journal of Composites Science, 5(12), Article 316. https://doi.org/10.3390/jcs5120316","ama":"Moritzer E, Richters M. Injection Molding of Wood-Filled Thermoplastic Polyurethane. Journal of Composites Science. 2021;5(12). doi:10.3390/jcs5120316","mla":"Moritzer, Elmar, and Maximilian Richters. “Injection Molding of Wood-Filled Thermoplastic Polyurethane.” Journal of Composites Science, vol. 5, no. 12, 316, MDPI AG, 2021, doi:10.3390/jcs5120316.","bibtex":"@article{Moritzer_Richters_2021, title={Injection Molding of Wood-Filled Thermoplastic Polyurethane}, volume={5}, DOI={10.3390/jcs5120316}, number={12316}, journal={Journal of Composites Science}, publisher={MDPI AG}, author={Moritzer, Elmar and Richters, Maximilian}, year={2021} }"},"type":"journal_article","year":"2021","title":"Injection Molding of Wood-Filled Thermoplastic Polyurethane","publication_identifier":{"issn":["2504-477X"]},"publication_status":"published","doi":"10.3390/jcs5120316","date_updated":"2022-04-20T08:02:41Z","language":[{"iso":"eng"}]}]