TY - JOUR A1 - Denk, Josef A1 - Diel, Sergej A1 - Huber, Otto T1 - Experimental and Numerical Analyses of the Lightweight Potential for Hybrid Thin-Walled Members JF - Materials Science Forum UR - https://doi.org/10.4028/www.scientific.net/MSF.825-826.732 Y1 - 2015 UR - https://doi.org/10.4028/www.scientific.net/MSF.825-826.732 SN - 1662-9752 VL - 2015 IS - 825-826 SP - 732 EP - 740 PB - Trans Tech Publications CY - Pfaffikon ER - TY - JOUR A1 - Diel, Sergej A1 - Huber, Otto A1 - Saage, Holger A1 - Steinmann, Paul A1 - Winter, Werner T1 - Mechanical behavior of a cellular composite under quasi-static, static, and cyclic compression loading JF - Journal of Materials Science UR - https://doi.org/10.1007/s10853-012-6432-0 Y1 - 2012 UR - https://doi.org/10.1007/s10853-012-6432-0 SN - 1573-4803 VL - 47 IS - 15 SP - 5635 EP - 5645 PB - Springer CY - Dordrecht ER - TY - CHAP A1 - Schlegel, Clemens A1 - Hösl, Andreas A1 - Diel, Sergej ED - Casella, Francesco T1 - Detailed Loss Modelling of Vehicle Gearboxes T2 - Proceedings of the 7th International Modelica Conference UR - https://doi.org/10.3384/ecp09430059 Y1 - 2009 UR - https://doi.org/10.3384/ecp09430059 SN - 978-91-7393-513-5 SP - 434 EP - 443 PB - University Electronic Press CY - Linköping ER - TY - CHAP A1 - Diel, Sergej A1 - Huber, Otto T1 - Static and Cyclic Damage Behavior of a Cellular Composite and its Application in a Sandwich Structure T2 - Proceeding of the 17th European Conference on Composite Materials: ECCM17 Y1 - 2016 UR - https://www.carbon-connected.de/Group/ECCM17.-.17th.European.Conference.on.Composite.Materials/3-SaT/Start/Accordion?perPage=10&page=28#21054 SN - 978-3-00-053387-7 PB - MAI Carbon Cluster Management CY - Augsburg ER - TY - CHAP A1 - Diel, Sergej A1 - Serifsoy, Murat A1 - Kießling, Andreas T1 - Betriebsfestigkeitsbewertung von Anbauteilen mit Hilfe einer dynamischen MKS-Simulation T2 - (R)Evolution des Antriebs - Auswirkung auf die Betriebsfestigkeit der Bauteile in der Wirkungskette Y1 - 2017 SN - 0944-5242 SP - 131 EP - 142 PB - DVM CY - Berlin ER - TY - JOUR A1 - Huber, Otto A1 - Diel, Sergej T1 - Design für Leichtbau und Nachhaltigkeit JF - Technik in Bayern: Nachrichten aus Technik, Naturwissenschaft und Wirtschaft: das Regionalmagazin für VDI und VDE Y1 - 2022 UR - https://www.technik-in-bayern.de/mehr-technik/ingenieurskunst/design-fuer-leichtbau-und-nachhaltigkeit SN - 1610-6563 SN - 2195-9455 VL - 2022 IS - 1 SP - 14 EP - 15 PB - MuP Verlag GmbH CY - München ER - TY - JOUR A1 - Vieweger, Daniel A1 - Diel, Sergej A1 - Schweiger, Hans-Georg A1 - Tetzlaff, Ulrich T1 - Mechanical Properties of Raw Filaments and Printed Specimens: Effects of Fiber Reinforcements and Process Parameters JF - Polymers N2 - Fused Deposition Modeling (FDM) is a well-established manufacturing method for producing both prototype and functional components. This study investigates the mechanical properties of FDM components by material and process-related influencing variables. Tensile tests were conducted on seven different materials in their raw filament form, two of which were fiber-reinforced, to analyze their material-related influence. To cover a wide range from standard to advanced materials relevant for load-carrying components as well as their respective variations, polylactic acid (PLA), 30% wood-fiber-reinforced PLA, acrylonitrile butadiene styrene (ABS), polycarbonate (PC), a blend of ABS and PC, Nylon, and 30% glass-fiber-reinforced Nylon were selected. The process-related influencing variables were studied using the following process parameters: layer thickness, nozzle diameter, build orientation, nozzle temperature, infill density and pattern, and raster angle. The first test series revealed that the addition of wood fibers significantly worsened the mechanical behavior of PLA due to the lack of fiber bonding to the matrix and significant pore formation. The polymer blend of ABS and PC only showed improvements in stiffness. Significant strength and stiffness improvements were found by embedding glass fibers in Nylon, despite partially poor fiber–matrix bonding. The materials with the best properties were selected for the process parameter analysis. When examining the impact of layer thickness on part strength, a clear correlation was evident. Smaller layer thicknesses resulted in higher strength, while stiffness did not appear to be affected. Conversely, larger nozzle diameters and lower nozzle temperatures only positively impacted stiffness, with little effect on strength. The part orientation did alter the fracture behavior of the test specimens. Although an on-edge orientation resulted in higher stiffness, it failed at lower stresses. Higher infill densities and infill patterns aligned with the load direction led to the best mechanical results. The raster angle had a significant impact on the behavior of the printed bodies. An alternating raster angle resulted in lower strengths and stiffness compared to a unidirectional raster angle. However, it also caused significant stretching due to the rotation of the beads. UR - https://doi.org/10.3390/polym16111576 Y1 - 2024 UR - https://doi.org/10.3390/polym16111576 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-48595 SN - 2073-4360 VL - 16 IS - 11 PB - MDPI CY - Basel ER - TY - CHAP A1 - Koch, Daniel A1 - Stein, Murillo A1 - de Abreu, Samuel Luna A1 - Diel, Sergej A1 - Schweiger, Hans-Georg T1 - Characterization and modeling of the swelling behavior of a LiFePO4 pouch cell in multiple operating conditions T2 - 2024 IEEE Vehicle Power and Propulsion Conference (VPPC), Proceedings UR - https://doi.org/10.1109/VPPC63154.2024.10755252 Y1 - 2024 UR - https://doi.org/10.1109/VPPC63154.2024.10755252 SN - 979-8-3315-4160-6 PB - IEEE CY - Piscataway ER - TY - JOUR A1 - Diel, Sergej A1 - Huber, Otto T1 - A Continuum Damage Mechanics Model for the Static and Cyclic Fatigue of Cellular Composites JF - Materials N2 - The fatigue behavior of a cellular composite with an epoxy matrix and glass foam granules is analyzed and modeled by means of continuum damage mechanics. The investigated cellular composite is a particular type of composite foam, and is very similar to syntactic foams. In contrast to conventional syntactic foams constituted by hollow spherical particles (balloons), cellular glass, mineral, or metal place holders are combined with the matrix material (metal or polymer) in the case of cellular composites. A microstructural investigation of the damage behavior is performed using scanning electron microscopy. For the modeling of the fatigue behavior, the damage is separated into pure static and pure cyclic damage and described in terms of the stiffness loss of the material using damage models for cyclic and creep damage. Both models incorporate nonlinear accumulation and interaction of damage. A cycle jumping procedure is developed, which allows for a fast and accurate calculation of the damage evolution for constant load frequencies. The damage model is applied to examine the mean stress effect for cyclic fatigue and to investigate the frequency effect and the influence of the signal form in the case of static and cyclic damage interaction. The calculated lifetimes are in very good agreement with experimental results. UR - https://doi.org/10.3390/ma10080951 Y1 - 2017 UR - https://doi.org/10.3390/ma10080951 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-55785 SN - 1996-1944 VL - 10 IS - 8 PB - MDPI CY - Basel ER - TY - JOUR A1 - Diel, Sergej A1 - Huber, Otto ED - Clark, Graham ED - Wang, Chun H. T1 - Comparison of Tensile and Compressive Creep-Fatigue Damage Behavior of Cellular Composites JF - 11th International Fatigue Congress UR - https://doi.org/10.4028/www.scientific.net/AMR.891-892.633 Y1 - 2014 UR - https://doi.org/10.4028/www.scientific.net/AMR.891-892.633 SN - 9783038263890 SP - 633 EP - 638 PB - Trans Tech Publications CY - Dürnten ER -