@phdthesis{26901, abstract = {{In der vorliegenden Arbeit wurden die mikrostrukturellen Eigenschaften und das dadurch resultierende mechanische Verhalten der im SLM-Verfahren (Selective Laser Melting) hergestellten Nickelbasis-Superlegierung Inconel 939 untersucht und einer Inconel 939 Gusslegierung gegenübergestellt. Die monotonen und mikrostrukturellen Untersuchungsergebnisse zeigen eine eindeutige Abhängigkeit der Herstellungsrichtung und deutliche Unterschiede zur Gusslegierung, insbesondere in der Mikrostruktur. Dehnungsgeregelte isotherme und thermomechanische Ermüdungsversuche in Kombination mit der Methode der digitalen Bildkorrelation (DIC) beschreiben das mechanische Verhalten sowie die kritischen Bereiche im Gefüge. Ob beim SLM- oder Gusswerkstoff eine höhere Lebensdauer bei der isothermen Ermüdung erreicht wird, ist von der Höhe der Beanspruchung abhängig. Im ausscheidungsgehärteten Zustand besitzt das SLM-Material bei niedrigen Belastungen und Temperaturen von Raumtemperatur bis 750 °C eine höhere Lebensdauer und zeigt somit ein besseres Ermüdungsverhalten als der Gusswerkstoff. Bei höheren Dehnungsamplituden werden vorhandene Poren aktiviert und ein schnelles Versagen tritt ein. Mit geeigneten HIP-Parametern konnte die Porosität allerdings deutlich reduziert werden.}}, author = {{Kanagarajah, Pirabagini}}, isbn = {{978-3-8440-4796-7}}, keywords = {{Nickelbasis-Superlegierung, Inconel 939, Laserschmelzverfahren, SLM, Ermüdung, Mikrostruktur}}, pages = {{182}}, title = {{{Ermüdungsverhalten und mikrostrukturelle Charakterisierung der im Laserschmelzverfahren hergestellten Nickelbasis-Superlegierung Inconel 939}}}, volume = {{6}}, year = {{2016}}, } @phdthesis{33, abstract = {{Lightweight materials play an ever growing role in today's world. Saving on the mass of a machine will usually translate into a lower energy consumption. However, lightweight applications are prone to develop performance problems due to vibration induced by the operation of the machine. The Fraunhofer Institute for Manufacturing Technology and Advanced Materials in Dresden conducts research into the damping properties of composite materials. They are experimenting with hollow, particle filled spheres embedded in the lightweight material. Such a system is the technical motivation of this thesis. Ultimately, a numerical experiment to derive the coefficient of restitution is required. The simulation developed in this thesis is based on a discrete element method to track the individual particle and sphere trajectories. Based on a potential based approach for the particle interactions deployed in molecular dynamics, the behavior of the particles can be controlled effectively. The simulated volume is using reflecting boundaries and encloses the hollow sphere. In this work, a highly flexible memory structure was used with a linked cell approach to cope with the highly flexible mass of particles. This allows for a linear complexity of the method in regard to the particle number by reducing the computational overhead of the interaction computation. Multiple numerical experiments show the great effect the particles have on the damping behavior of the system.}}, author = {{Steinle, Tobias}}, title = {{{Modeling and simulation of metallic, particle-damped spheres for lightweight materials}}}, year = {{2016}}, } @inproceedings{34, author = {{Dellnitz, Michael and Eckstein, Julian and Flaßkamp, Kathrin and Friedel, Patrick and Horenkamp, Christian and Köhler, Ulrich and Ober-Blöbaum, Sina and Peitz, Sebastian and Tiemeyer, Sebastian}}, booktitle = {{Progress in Industrial Mathematics at ECMI}}, issn = {{2212-0173}}, pages = {{633--641}}, publisher = {{Springer International Publishing}}, title = {{{Multiobjective Optimal Control Methods for the Development of an Intelligent Cruise Control}}}, doi = {{10.1007/978-3-319-23413-7_87}}, volume = {{22}}, year = {{2016}}, } @inproceedings{3543, author = {{Hildebrandt, Andre and Alhaddad, Samer and Hammer, Manfred and Förstner, Jens}}, booktitle = {{Integrated Optics: Devices, Materials, and Technologies XX}}, editor = {{Broquin, Jean-Emmanuel and Nunzi Conti, Gualtiero}}, keywords = {{tet_topic_waveguide}}, publisher = {{SPIE}}, title = {{{Oblique incidence of semi-guided waves on step-like folds in planar dielectric slabs: Lossless vertical interconnects in 3D integrated photonic circuits}}}, doi = {{10.1117/12.2214460}}, year = {{2016}}, } @inproceedings{3798, author = {{Hett, Thomas and Frers, Torsten and Widhalm, Alex and Berth, Gerhard and Hilleringmann, Ulrich and Zrenner, Artur}}, booktitle = {{Smart Systems Integration 2016 - International Conference and Exhibition on Integration Issues of Miniaturized Systems, SSI 2016}}, location = {{Munich}}, pages = {{400 -- 403}}, title = {{{Silicon oxynitride microdisk resonators for integrated waveguide coupling}}}, year = {{2016}}, } @inproceedings{27245, author = {{Schöppner, Volker and Westhues, K. and Westhues, T}}, booktitle = {{32nd International Conference of the Polymer Processing Society (PPS)}}, location = {{Lyon (Frankreich)}}, title = {{{A New Sample Preparation Method to Investigate Melting Phenomena within a Partly Filled Melting Zone Of Co-Rotating Twin Screw Extruders}}}, year = {{2016}}, } @inproceedings{27246, author = {{Moritzer, Elmar and Hüttner, M. and Henning, Bernd and Webersen, Manuel}}, booktitle = {{32nd International Conference of the Polymer Processing Society (PPS)}}, location = {{Lyon (Frankreich)}}, title = {{{An Approach to Non-Destructive Testing of Aged Polymers}}}, year = {{2016}}, } @article{27248, author = {{Schöppner, Volker and Brockhaus, S. and Penner, C. and Möckel, J.}}, issn = {{0176-1625}}, journal = {{GAK Gummi Fasern Kunststoffe}}, number = {{69. Jg. Heft 7}}, pages = {{410--413}}, title = {{{Auswirkungen von Betriebsparametern in der Heißluftvulkanisation}}}, year = {{2016}}, } @article{27249, author = {{Schöppner, Volker and Littek, S. and Döring, Artjom and Kuckling, Dirk}}, journal = {{Zeitschrift Kunststofftechnik / Journal of Plastics Technology}}, pages = {{18}}, title = {{{Berechnung des Materialabbaus von PP und PS in der Plastifiziereinheit Teil 1: Belastung und Materialmodellierung}}}, year = {{2016}}, } @article{27250, author = {{Moritzer, Elmar and Hüttner, M. and Henning, Bernd and Webersen, Manuel}}, issn = {{1862-4243}}, journal = {{Kunststoffe international}}, number = {{10. Jg. Heft 4}}, pages = {{43--45}}, title = {{{Detecting Molecular Damage - Non-Destructive Characterization of Molecular Changes in Aged Polymers}}}, year = {{2016}}, } @inproceedings{27251, author = {{Moritzer, Elmar and Nordmeyer, T. and Enneking, L. and Grishin, A. and Knospe, A. and Buske, C.}}, booktitle = {{74th Annual Technical Conference of the Society of Plastics Engineers (ANTEC)}}, location = {{Indianapolis (USA)}}, title = {{{Development of an Inline Plasma Treatment During Injection Molding Process}}}, year = {{2016}}, } @inproceedings{27252, author = {{Moritzer, Elmar and Budde, C. and Hüttner, M.}}, booktitle = {{Joining in Car Body Engineering 2016}}, location = {{Bad Nauheim (Deutschland)}}, title = {{{Die Riveting – A New Joining Technology for Composite Sheet-Metal-Hybrid Joints}}}, year = {{2016}}, } @inproceedings{27253, author = {{Moritzer, Elmar and Hüttner, M. and Henning, Bernd and Webersen, Manuel}}, booktitle = {{Safe and Reliable Structures}}, location = {{Dalheim (Deutschland)}}, title = {{{Ein Ansatz zur zerstörungsfreien Prüfung von hydrothermisch gealterten Polymeren}}}, year = {{2016}}, } @inproceedings{27254, author = {{Moritzer, Elmar and Martin, Y.}}, booktitle = {{32nd International Conference of the Polymer Processing Society (PPS)}}, location = {{Lyon (Frankreich)}}, title = {{{Experimental Investigations on the Fibre Length Degradation in Injection Moulds}}}, year = {{2016}}, } @inproceedings{27255, author = {{Moritzer, Elmar and Brockhaus, S. and Heiderich, G.}}, booktitle = {{74th Annual Technical Conference of the Society of Plastics Engineers (ANTEC)}}, location = {{Indianapolis (USA)}}, title = {{{Fiber Length Degradation of Glass Fiber-Reinforced Polypropylene during Shearing}}}, year = {{2016}}, } @inproceedings{27256, author = {{Moritzer, Elmar and Brockhaus, S. and Heiderich, G.}}, booktitle = {{16th Annual International Polymer Colloquium (IPC)}}, location = {{Madison (USA)}}, title = {{{Fiber Length Degradation of Glass Fiber-Reinforced Polypropylene during Shearing}}}, year = {{2016}}, } @inproceedings{27257, author = {{Moritzer, Elmar and Heiderich, G.}}, booktitle = {{32nd International Conference of the Polymer Processing Society (PPS)}}, location = {{Lyon (Frankreich)}}, title = {{{Fiber Length Reduction during Shearing in Polymer Processing}}}, year = {{2016}}, } @inproceedings{27258, author = {{Schöppner, Volker and Pohl, M.}}, booktitle = {{32nd International Conference of the Polymer Processing Society (PPS)}}, location = {{Lyon (Frankreich)}}, title = {{{First Insight into the High Speed Extrusion of Polycarbonate}}}, year = {{2016}}, } @article{27259, author = {{Moritzer, Elmar and Kleeschulte, R. and Zavoral, S. and Kaiser, E.}}, issn = {{0023-5563}}, journal = {{Kunststoffe}}, number = {{106. Jg. Heft 2}}, pages = {{54--58}}, title = {{{Gut gewickelt - Mit effektiver Topologieentwicklung zur belastungsorientierten Bauteilgeometrie einer Kunststoffspule für die Monofilindustrie}}}, year = {{2016}}, } @article{27260, author = {{Moritzer, Elmar and Fecke, N. and Landgräber, B. and Kern, W. and Kaynak, B. and Grundmeier, Guido and Waschke, S.}}, issn = {{0023-5563}}, journal = {{Kunststoffe}}, number = {{106. Jg. Heft 8}}, pages = {{70--72}}, title = {{{In Zukunft einfach entformen - Neu entwickelte molekulare Beschichtungen sollen die Entformungskräfte beim Spritzgießen verringern}}}, year = {{2016}}, }