Academic literature on the topic 'Fiber placement'

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Journal articles on the topic "Fiber placement"

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Kozaczuk, Konrad. "AUTOMATED FIBER PLACEMENT SYSTEMS OVERVIEW." Transactions of the Institute of Aviation 245, no. 4 (2016): 52–59. http://dx.doi.org/10.5604/05096669.1226355.

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Jeffries, Kyle A. "Enhanced Robotic Automated Fiber Placement with Accurate Robot Technology and Modular Fiber Placement Head." SAE International Journal of Aerospace 6, no. 2 (2013): 774–79. http://dx.doi.org/10.4271/2013-01-2290.

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Bohler, Patrick, Stefan Carosella, Christopher Goetz, and Peter Middendorf. "Path Definition for Tailored Fiber Placement Structures Using Numerical Reverse Draping Approach." Key Engineering Materials 651-653 (July 2015): 446–51. http://dx.doi.org/10.4028/www.scientific.net/kem.651-653.446.

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The properties of fiber reinforced materials are depending on the fiber direction. During draping processes - which are necessary to form complex structures - the fiber direction and therefore the resulting properties of the final part are changing.To ensure that the fibers in the final complex structure are placed exactly in the direction needed, a new approach is investigated.The idea is to define the orientation of the reinforcement fibers based on the distribution of forces in a complex structure under certain loading determined by a structural simulation. Best lightweight behavior is achi
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Dong, Heng, and Su Li Feng. "Reinforcement and Fiber to Induce Ductile Behavior of Ultra High Performance Steel Fiber Concrete." Applied Mechanics and Materials 351-352 (August 2013): 199–202. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.199.

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To induce the ductile behavior of ultra high performance concrete beams, the experiments to find out the best composition of volume fraction of steel fiber and ratio of reinforcement bar were carried out. 15 UHPC beams which have various combinations of volume fraction of steel fiber and ratio of reinforcement bar. The reinforcement bars was consist of 2×1, 3×3, 4×4, 5×4. The volume fractions of steel fibers were 0%, 0.7%, 1%, 1.5%, 2%. The beam which has 0% volume fraction with the close placement reinforcement bar has little effect on ductile behavior. At least 0.7% volume fraction with the
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Rimmel, Oliver, and David May. "Modeling transverse micro flow in dry fiber placement preforms." Journal of Composite Materials 54, no. 13 (2019): 1691–703. http://dx.doi.org/10.1177/0021998319884612.

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Dry fiber placement has a large potential for manufacturing preforms for primary-load components at minimum scrap rate and fiber crimp. Yet, challenging impregnation behavior due to low permeability of these preforms during liquid composite molding imposes a need for further research to optimize preform structure for higher permeability. For full understanding of flow behavior within these preforms, flow has to be considered on micro scale (in between single fibers), on meso scale (in between single rovings or strands), and on macro scale (on scale of parts to be manufactured). While macro and
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Honda, Shinya. "Multi-Objective Optimization of Variable-Stiffness Composites Fabricated by Tailored Fiber Placement Machine." EPI International Journal of Engineering 2, no. 1 (2019): 14–18. http://dx.doi.org/10.25042/epi-ije.022019.04.

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A multi-objective optimization method for the laminated composite fabricated by a tailored fiber placement machine that is an application of embroidering machine is presented. The mechanical properties of composite with curvilinear fibers including stiffness, volume fraction, and density are variable depending on curvatures of fibers. The present study first measures the relation between curvatures and mechanical properties. The measured results indicate that the stiffness of composite decreases linearly as the curvature increases. Then, the obtained relation is applied to the multi-objective
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Brecher, C., D. Werner, and M. Emonts. "Leichtbau-Produktion mit flexibler Anlagentechnik*/Lightweight production in a configurable system – Production of fiber-reinforced components with a multifunctional tape and fiber placement system." wt Werkstattstechnik online 105, no. 09 (2015): 586–90. http://dx.doi.org/10.37544/1436-4980-2015-09-28.

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Zur Fertigung belastungsoptimierter faserverstärkter Strukturbauteile mit Tape- oder Fiber-Placement-Verfahren kommen vermehrt robotergeführte Systeme zur Anwendung. Im Gegensatz zu den aus der Luftfahrtindustrie bekannten Portalsystemen werden so Anlagenkosten gesenkt und neue Anwendungsfelder erschlossen. Um die Maschinenauslastung zu steigern, müssen auch Tape- oder Fiber-Placement-Systeme die flexible Fertigung faserverstärkter Komponenten in verschiedenen Prozessketten ermöglichen.   Automated manufacturing of load optimized fiber-reinforced composite structures by using tape and
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Schmidt, Carsten, Klaas Völtzer, Tristan Hocke, and Jan Brüning. "Bahnplanung für Automated-Fiber-Placement-Prozesse." Lightweight Design 9, no. 4 (2016): 26–31. http://dx.doi.org/10.1007/s35725-016-0038-4.

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Khodunov, A. A., V. V. Bogachev, and A. S. Borodulin. "Advances in tailored fiber placement technology." Journal of Physics: Conference Series 1990, no. 1 (2021): 012041. http://dx.doi.org/10.1088/1742-6596/1990/1/012041.

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Čajka, Radim, Martina Smirakova, and Pavlina Matečková. "Frequent Failures of FRC Industrial Floors." Key Engineering Materials 738 (June 2017): 217–26. http://dx.doi.org/10.4028/www.scientific.net/kem.738.217.

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Floors in industrial buildings are often loaded with heavy traffic or stored material. For this reason floors are often created by fiber-reinforced concrete. Fibers contribute to larger impact - or abrasion resistance. The issue of design of fiber concrete slabs is quite complicated. Poorly designed layer structure under slabs or poorly subsoil can have very important effect of result properties and create the first group of source of problem. The second group of causes of problems is real implementation of concrete slab primarily the amount of fibers and correct and even placement. If amount
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Dissertations / Theses on the topic "Fiber placement"

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Moutran, Serge Riad. "Feasible Workspace for Robotic Fiber Placement." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/32738.

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Online consolidation fiber placement is emerging as an automated manufacturing process for the fabrication of large composite material complex structures. While traditional composite manufacturing techniques limited the productsâ size, geometrical shapes and laminate patterns, robotic automation of the fiber placement process allows the manufacture of complex bodies with any desired surface pattern or towpregâ s direction. Therefore, a complete understanding of the robot kinematic capabilities should be made to accurately position the structureâ s substrate in the workcell and to compute t
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Lee, Munki. "Heat Transfer and Consolidation Modeling of Fiber Tow in Fiber Placement." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/11123.

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New heating techniques are required to better control heat transfer between heating tools and a composite towpreg in the automated fiber placement process. This dissertation suggests new heating techniques with liquid and rigid contact heat sources, and compares them with a widely used gas heat source for the fiber placement process. A thin towpreg composite model needs to be developed to describe the heat transfer. Subsequently, the response of the towpreg with each heat source was compared from manufacturing speed and energy efficiency viewpoints. The most promising heat source was develope
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Cameron, Alexander John. "A Bayesian approach to optimal sensor placement." Thesis, University of Oxford, 1989. http://ora.ox.ac.uk/objects/uuid:ad201132-d418-4ee4-a9d5-3d79bd4876a7.

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By "intelligently" locating a sensor with respect to its environment it is possible to minimize the number of sensing operations required to perform many tasks. This is particularly important for sensing media which provide only "sparse" data, such as tactile sensors and sonar. In this thesis, a system is described which uses the principles of statistical decision theory to determine the optimal sensing locations to perform recognition and localization operations. The system uses a Bayesian approach to utilize any prior object information (including object models or previously-acquired sensory
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Croft, Kaven. "Experimental characterization of automated fiber placement process defects in composite structures." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97203.

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The Automated Fiber Placement (AFP) process has good potential for manufacturing large composite structures and is used for large scale production. However, the AFP process reveals uncertainties associated with the induced defects. This investigation examines the ultimate strength variation induced by a single gap, overlap, half gap/overlap and twisted tow defects. Tests are carried out on three lamina properties (fiber tension, fiber compression and in-plane shear), two laminate properties (open hole tension and open hole compression) and each was compared with a baseline configuration withou
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Prabhakar, Suhas. "A methodology for finite element analysis of curvilinear fiber laminates with defects, fabricated by automated fiber placement technique." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=107876.

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Composite materials have immense capabilities in terms of tailorability and studying in-depth the Automated Fiber Placement (AFP) technique can go a long way in achieving the above goal. Composite laminates fabricated by AFP can also induce defects such as gaps and overlaps. These defects mainly arise in laminates with curvilinear fiber paths. Gaps usually get filled with resin post-curing while the overlaps are thickness build-ups. This makes it important to analyse the effect of these defects and to incorporate these effects while designing and modeling composite laminates. The present work
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Rimmel, Oliver [Verfasser], and Peter [Akademischer Betreuer] Mitschang. "Grundlagen der Imprägnierung von Dry Fiber Placement Preforms / Oliver Rimmel ; Betreuer: Peter Mitschang." Kaiserslautern : Technische Universität Kaiserslautern, 2020. http://d-nb.info/1216104867/34.

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Völtzer, Klaas [Verfasser]. "Online-Prozessüberwachung von Automated Fiber Placement Prozessen auf Basis der Thermografie / Klaas Völtzer." Garbsen : TEWISS - Technik und Wissen GmbH, 2019. http://www.tewiss-verlag.de/.

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Inci, Hasan. "Discrete Fiber Angle And Continuous Fiber Path Optimization In Composite Structures." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614127/index.pdf.

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Fiber orientation angle stands out as one of the most effective design variables in the design optimization of composite structures. During the manufacturing of the composite structures, one can change the fiber orientation according to the specific design needs and constraints to optimize a pre-determined performance index. Fiber placement machines can place different width tows in curvilinear paths resulting in continuous change of the fiber orientation angle in a layer of the composite structure. By allowing the fibers to follow curvilinear paths in the composite structure, modification of
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Uhlig, Kai. "Beitrag zur Anwendung der Tailored Fiber Placement Technologie am Beispiel von Rotoren aus kohlenstofffaserverstärktem Epoxidharz für den Einsatz in Turbomolekularpumpen." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-235151.

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In der vorliegenden Arbeit wird die Steifigkeits- und Festigkeitsauslegung von mittels der Tailored Fiber Placement (TFP)-Technologie hergestellten Faser-Kunststoff-Verbunden (FKV) am Beispiel eines einteiligen Rotors aus kohlenstofffaserverstärktem Epoxidharz (CFK) für den Einsatz in Turbomolekularpumpen (TMP) vorgestellt. Im Vergleich zu anderen textilen Fertigungsverfahren können mit Hilfe der TFP-Technologie Verstärkungsfaserrovings in der Ebene variabelaxial, d. h. mit ortsunabhängiger, frei wählbarer Richtung, definiert abgelegt werden. Die sticktechnische Fixierung der Rovings mit Hilfe
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Hocke, Tristan [Verfasser]. "Klassifizierung und Untersuchung von thermografisch erfassten Fertigungsfehlern im Automated-Fiber-Placement-Prozess / Tristan Hocke." Garbsen : TEWISS - Technik und Wissen GmbH, 2020. https://www.tewiss-verlag.de/.

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Books on the topic "Fiber placement"

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Thermal Degradation Effects on Consolidation and Bonding in the Thermoplastic Fiber-Placement Process. Storming Media, 2000.

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Book chapters on the topic "Fiber placement"

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Gooch, Jan W. "Fiber Placement." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_4867.

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Evans, Don O. "Fiber Placement." In Handbook of Composites. Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-6389-1_23.

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Martinie, L., and N. Roussel. "Fiber-Reinforced Cementitious Materials: From Intrinsic Isotropic Behavior to Fiber Alignment." In Design, Production and Placement of Self-Consolidating Concrete. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9664-7_34.

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Ferrara, Liberato, Nathan Tregger, and Surendra P. Shah. "Flow-Induced Fiber Orientation in SCSFRC: Monitoring and Prediction." In Design, Production and Placement of Self-Consolidating Concrete. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9664-7_35.

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Buratti, Nicola, Claudio Mazzotti, and Marco Savoia. "Long-Term Behaviour of Fiber-Reinforced Self-Compacting Concrete Beams." In Design, Production and Placement of Self-Consolidating Concrete. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9664-7_37.

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Krem, Slamah, and Khaled Soudki. "Development Length of Carbon-Fiber-Reinforced Polymer Bars in Self-Consolidating Concrete." In Design, Production and Placement of Self-Consolidating Concrete. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9664-7_32.

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Cuenca, Estefanía, and Pedro Serna. "Shear Behavior of Self-Compacting Concrete and Fiber-Reinforced Concrete Push-Off Specimens." In Design, Production and Placement of Self-Consolidating Concrete. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9664-7_36.

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Ferrara, Liberato, Steffen Grünewald, and Frank Dehn. "Design with Highly Flowable Fiber-Reinforced Concrete: Overview of the Activity of fib TG 8.8." In Design, Production and Placement of Self-Consolidating Concrete. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9664-7_33.

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Gao, Jiuchun, Anatol Pashkevich, and Stéphane Caro. "Manipulator Motion Planning in Redundant Robotic System for Fiber Placement Process." In New Trends in Mechanism and Machine Science. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-44156-6_25.

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Zhu, Yanjuan, and Kanzhong Yao. "Optimization Path Planning Algorithm Based on STL File Reconstruction for Automated Fiber Placement." In Lecture Notes in Electrical Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9686-2_44.

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Conference papers on the topic "Fiber placement"

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Challa, Sushmita, and Cindy Harnett. "Packaging Electronics on Textiles: Identifying Fiber Junctions for Automated Placement." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8456.

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Abstract Electronic textile (E-textile) research requires an understanding of the mechanical properties of fabric substrates used to build and support electronics. Because fibers are often non-uniform and fabrics are easily deformed, locating fiber junctions on the irregular surface is challenging, yet is essential for packaging electronics on textiles at the resolution of single fibers that deliver power and signals. In this paper, we demonstrate the need to identify fiber junctions in a task where microelectromechanical structures (MEMS) are integrated on fabrics. We discuss the benefits of
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Williams, Marty. "Optical fiber placement for crossover-free fiber optic gyros." In SPIE Optics + Photonics, edited by Francis T. S. Yu, Ruyan Guo, and Shizhuo Yin. SPIE, 2006. http://dx.doi.org/10.1117/12.683537.

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Ferdousi, Sifat, Ferhat Dikbiyik, M. Farhan Habib, Massimo Tornatore, and Biswanath Mukherjee. "Disaster-Aware Dynamic Content Placement in Optical Cloud Networks." In Optical Fiber Communication Conference. OSA, 2014. http://dx.doi.org/10.1364/ofc.2014.m2h.4.

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Shen, Dong, Guangzhi Li, Dongmei Wang, Chun-Kit Chan, and Robert Doverspike. "Efficient Regenerator Placement and Wavelength Assignment in Optical Networks." In Optical Fiber Communication Conference. OSA, 2011. http://dx.doi.org/10.1364/ofc.2011.othaa4.

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Wu, Yu, Massimo Tornatore, Saigopal Thota, and Biswanath Mukherjee. "Renewable-Energy-Aware Data Center Placement in Optical Cloud Networks." In Optical Fiber Communication Conference. OSA, 2015. http://dx.doi.org/10.1364/ofc.2015.th2a.49.

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Da Ros, F., M. P. Yankov, E. P. da Silva, et al. "Link-Placement Characterization of Optical Phase Conjugation for Nonlinearity Compensation." In Optical Fiber Communication Conference. OSA, 2018. http://dx.doi.org/10.1364/ofc.2018.w3e.3.

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Katrinis, Kostas, Anna Tzanakaki, and George Markidis. "Impairment-Aware WDM Network Dimensioning with Optimized Regenerator Placement." In National Fiber Optic Engineers Conference. OSA, 2009. http://dx.doi.org/10.1364/nfoec.2009.nthe4.

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Bhatt, Uma Rathore, and Nitin Chouhan. "ONU placement in Fiber-Wireless (FiWi) Networks." In 2013 Nirma University International Conference on Engineering (NUiCONE). IEEE, 2013. http://dx.doi.org/10.1109/nuicone.2013.6780115.

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Tian Hu and Bao-Hua Zhao. "Splitter Placement Problem on Directed Fiber Trees." In Sixth International Conference on Parallel and Distributed Computing Applications and Technologies (PDCAT'05). IEEE, 2005. http://dx.doi.org/10.1109/pdcat.2005.226.

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Musumeci, Francesco, Giuseppe Belgiovine, and Massimo Tornatore. "Dynamic Placement of BaseBand Processing in 5G WDM-based Aggregation Networks." In Optical Fiber Communication Conference. OSA, 2017. http://dx.doi.org/10.1364/ofc.2017.m2g.4.

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