Academic literature on the topic 'Discontinuous fiber reinforces thermoplastic'

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Journal articles on the topic "Discontinuous fiber reinforces thermoplastic"

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Haldar, Amit Kumar, and S. Senthilvelan. "Notch Effect on Discontinuous Fiber Reinforced Thermoplastic Composites." Key Engineering Materials 471-472 (February 2011): 173–78. http://dx.doi.org/10.4028/www.scientific.net/kem.471-472.173.

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Increasing utilization of thermoplastic composites in the structural application necessitates understanding of damage tolerance characteristics. In this work, unreinforced, 20 % short, 20 % long glass fiber reinforced polypropylene were injection molded and considered. Test specimens with different notch sizes were tested under static as well as fatigue loading conditions. Under static load condition, short fiber reinforced and unreinforced test material exhibited notch strengthening effect; whereas long fiber reinforced material exhibited notch weakening effect. Failure morphology under fatig
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Crosby, J. M., and T. R. Drye. "Fracture Studies of Discontinuous Fiber Reinforced Thermoplastic Composites." Journal of Reinforced Plastics and Composites 6, no. 2 (1987): 162–77. http://dx.doi.org/10.1177/073168448700600205.

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Jiang, Bingyan, Muhan Zhang, Liang Fu, Mingyong Zhou, and Zhanyu Zhai. "Molecular Dynamics Simulation on the Interfacial Behavior of Over-Molded Hybrid Fiber Reinforced Thermoplastic Composites." Polymers 12, no. 6 (2020): 1270. http://dx.doi.org/10.3390/polym12061270.

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Hybrid fiber reinforced thermoplastic composites are receiving important attention in lightweight applications. The fabrication process of hybrid thermoplastic composites is that discontinuous fiber reinforced thermoplastics are injected onto the continuous fiber reinforced thermoplastics by over-molding techniques. The key issue during this process is to get a reliable interfacial bonding strength. To understand the bonding mechanism at the heterogeneous interface of hybrid thermoplastic composites which is difficult to obtain through experimental investigations, a series of molecular dynamic
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Sharma, Bhisham N., Diwakar Naragani, Ba Nghiep Nguyen, Charles L. Tucker, and Michael D. Sangid. "Uncertainty quantification of fiber orientation distribution measurements for long-fiber-reinforced thermoplastic composites." Journal of Composite Materials 52, no. 13 (2017): 1781–97. http://dx.doi.org/10.1177/0021998317733533.

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We present a detailed methodology for experimental measurement of fiber orientation distribution in injection-molded discontinuous fiber composites using the method of ellipses on two-dimensional cross sections. Best practices to avoid biases occurring during surface preparation and optical imaging of carbon-fiber-reinforced thermoplastics are discussed. A marker-based watershed transform routine for efficient image segmentation and the separation of touching fiber ellipses is developed. The sensitivity of the averaged orientation tensor to the image sample size is studied for the case of long
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Gomer, Andreas, Wei Zou, Niels Grigat, Johannes Sackmann, and Werner Schomburg. "Fabrication of Fiber Reinforced Plastics by Ultrasonic Welding." Journal of Composites Science 2, no. 3 (2018): 56. http://dx.doi.org/10.3390/jcs2030056.

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Ultrasonic fabrication of fiber reinforced plastics made from thermoplastic polymer films and carbon or glass fibers enables cycle times of a few seconds and requires investment costs of only some 10,000 €. Besides this, the raw materials can be stored at room temperature. A fiber content of 33 vol % and a tensile strength of approximately 1.2 GPa have been achieved by ultrasonic welding of nine layers of foils from polyamide, each 100 µm in thickness, and eight layers of carbon fibers, each 100 µm in thickness, in between. Besides unidirectional carbon fiber reinforced polymer composite (CFRP
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Kech, Armin, Susanne Kugler, and Tim Osswald. "Significance of Model Parameter Variations in the pARD-RSC Model." Journal of Composites Science 4, no. 3 (2020): 109. http://dx.doi.org/10.3390/jcs4030109.

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This study aims to evaluate how fiber orientation results are dependent on fluctuations in input parameters, such as the average fiber length, fiber volume content, and initial alignment of fibers. The range of parameters is restricted to deviations within one specific short fiber reinforced thermoplastic and is not set up to investigate the differences between materials. The evaluation was conducted by a virtual shear cell based on a mechanistic modeling approach. The fiber orientation prediction model discussed is the pARD-RSC (principal anisotropic rotary diffusion-reduced strain closure) m
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Rizov, V., T. Harmia, A. Reinhardt, and K. Friedrich. "Fracture Toughness of Discontinuous Long Glass Fiber Reinforced Polypropylene: An Approach Based on a Numerical Prediction of Fiber Orientation in Injection Molding." Polymers and Polymer Composites 13, no. 2 (2005): 121–30. http://dx.doi.org/10.1177/096739110501300201.

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The fracture toughness of discontinuous long glass fiber reinforced injection-molded polypropylene has been characterized by using the microstructural efficiency concept in combination with a numerical prediction of the fiber orientation during injection molding. The latter was performed by using the SIGMASOFT commercial software. In a three-dimensional numerical scheme, input data such as fiber volume fractions, shear viscosity and mean fiber aspect ratio have been used in order to perform the mold filling analysis. The resulted local fiber orientation parameters for injection molded square p
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Song, Yuyang, Umesh Gandhi, Adam Koziel, Srikar Vallury, and Anthony Yang. "Effect of the initial fiber alignment on the mechanical properties for GMT composite materials." Journal of Thermoplastic Composite Materials 31, no. 1 (2017): 91–109. http://dx.doi.org/10.1177/0892705716681400.

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A glass-mat-reinforced thermoplastic (GMT) material is widely used in the automotive industry for components such as underbody shields, seat structures, front/rear bumper, and front-end modulus. Due to the higher residual length of the glass strands, GMT usually offers better mechanical properties than injection-molded fiber-reinforced thermoplastics. The GMT material is typically manufactured by compression molding (CM) of preimpregnated fibers–reinforced resin sheets called mat. Two types of mats, one with discontinuous random (RD) fibers and other with aligned continuous fibers, are conside
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ICHIKI, Makoto, Atsuhiko YAMANAKA, Mariko TERADA, et al. "Analytical Evaluation on Mechanical Characteristics of Discontinuous Carbon Fiber Reinforced Thermoplastic Composites." Proceedings of the Materials and Mechanics Conference 2017 (2017): OS1010. http://dx.doi.org/10.1299/jsmemm.2017.os1010.

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Toba, Keisuke, Yuya Kondo, Masashi Harada, Azusa Nagura, Takushi Miyake, and Yuta Takada. "Improvement of Mechanical Properties of Discontinuous Carbon Fiber Reinforced Thermoplastic Induced by the Fiber Unbundling." Transactions of the Materials Research Society of Japan 41, no. 1 (2016): 135–38. http://dx.doi.org/10.14723/tmrsj.41.135.

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Dissertations / Theses on the topic "Discontinuous fiber reinforces thermoplastic"

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Lopez, Delphine. "Comportement d’un thermoplastique renforcé de fibres de verre soumis à des chargements thermo-mécaniques." Thesis, Lorient, 2018. http://www.theses.fr/2018LORIS488/document.

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Les composites à matrice polymère sont de plus en plus utilisés dans le secteur automobile. Afin de remplir les conditions exigeantes du cahier des charges vis-à-vis des conditions de mise en service, les pièces en composite doivent maintenir leur forme géométrique sous des conditions thermo-mécaniques parfois extrêmes. Par exemple, un assemblage de hayon composite est soumis à des contraintes mécaniques élevées associées à des variations de température importantes lors des essais de validation du cahier des charges. Les enjeux de la thèse sont axés sur l’aide à la conception dans le domaine q
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Book chapters on the topic "Discontinuous fiber reinforces thermoplastic"

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Kech, A., H. C. Ludwig, U. Fritz, U. Müller, B. Möginger, and P. Eyerer. "The Influence of Processing Conditions on Mechanical Properties of Unreinforced and Discontinuous Glass Fibre Reinforced Thermoplastics." In Progress and Trends in Rheology V. Steinkopff, 1998. http://dx.doi.org/10.1007/978-3-642-51062-5_190.

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"Simulation of Sheet Molding Compound (SMC) and Long Fiber-Reinforced Thermoplastics (LFTP)." In Continuous–Discontinuous Fiber-Reinforced Polymers, edited by Thomas Böhlke, Frank Henning, Andrew Hrymak, Luise Kärger, Kay A. Weidenmann, and Jeffrey T. Wood. Carl Hanser Verlag GmbH & Co. KG, 2019. http://dx.doi.org/10.3139/9781569906934.004.

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Advani, S. G., and T. S. Creasy. "Rheology of long discontinuous fiber thermoplastic composites." In Rheology Series. Elsevier, 1999. http://dx.doi.org/10.1016/s0169-3107(99)80010-0.

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Conference papers on the topic "Discontinuous fiber reinforces thermoplastic"

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Haldar, Amit Kumar, Ishan Aggarwal, and N. K. Batra. "Damping behavior of Discontinuous Fiber Reinforced Thermoplastic Composites." In INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS OF MULTILEVEL SYSTEMS 2014. AIP Publishing LLC, 2010. http://dx.doi.org/10.1063/1.3526258.

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Sun, Xianjun, Yuan Gan, John Lasecki, et al. "Evaluation of Fiber Orientation Prediction of Moldflow Using an Injection Molded IP Panel." In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1255.

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The fiber orientation distribution is one of the important microstructural variables for thermoplastic composites reinforced with discontinuous fibers. In this article, Moldflow is used to predict the fiber orientation distribution in an automotive component. Image analysis by MATLAB is adopted to validate the simulated results after taking pictures of fibers by X-ray CT. It is shown that the Moldflow predicts the average distribution in direction of the thickness accurately, with predicted eigenvalue of the orientation tensor within 5% of that measured. However, it failed to capture the chang
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Cao, Wan, Ning Kang, Lingyu Sun, Shanshu Xiang, Xudong Yang, and Yiben Zhang. "Generation Mechanism of Interfacial Residual Stress and its Effect on Mechanical Properties of Hybrid Fiber-Reinforced Thermoplastic Polymer (HFRTP)." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86523.

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For automotive weight reduction, fiber-reinforced thermoplastic polymer (FRTP) is preferred due to its short curing time, good recycling and easy formability of complex parts. Hybrid fiber-reinforced thermoplastic polymer (HFRTP) can take the advantage of two processes (thermo-stamping and injection) and two materials (continuous FRTP and discontinuous FRTP) to form an integrated structure with both complex shape and excellent performance simultaneously. However, the unmatched thermodynamic properties between different materials would produce interfacial residual stress (IRS) as the temperatur
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Thakur, Aditya R., Ming C. Leu, and Xiangyang Dong. "Feasibility and Characterization of Large-Scale Additive Manufacturing With Long Fiber Reinforced Composites." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8257.

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Abstract A new additive manufacturing (AM) approach to fabricate long fiber reinforced composites (LFRC) was proposed in this study. A high deposition rate was achieved by the implementation of a single-screw extruder, which directly used thermoplastic pellets and continuous fiber tows as feedstock materials. Thus, the proposed method was also used as a large-scale additive manufacturing (LSAM) method for printing large-volume components. Using polylactic acid (PLA) pellets and continuous carbon fiber tows, the feasibility of the proposed AM method was investigated through printing LFRC sample
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Ramesh, Senthil Raj, Veera Aditya Yerra, Sai Aditya Pradeep, and Srikanth Pilla. "A Systems Approach in Developing an Ultralightweight Outside Mounted Rearview Mirror Using Discontinuous Fiber Reinforced Thermoplastics." In WCX SAE World Congress Experience. SAE International, 2019. http://dx.doi.org/10.4271/2019-01-1124.

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Chen, Hongyu, Peter Wapperom, and Donald G. Baird. "Simulation of Long Semi-Flexible Fiber Orientation During Injection Molding." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8577.

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Fiber orientation simulation is conducted for the Center-Gated-Disk (CGD) geometry and compared with experimental data. Long-fiber thermoplastic composites (LFTs) possess competitive advantages over short glass fiber composites in terms of their mechanical properties while retain the ability to be injection molded. Mechanical properties of LFTs are highly dependent on the microstructural variables imparted by the injection molding process including fiber orientation and fiber length distribution. As the fiber length increased, the mechanical properties of the composites containing discontinuou
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