Thematische Bibliographien / Fiber reinforced metal

Auswahl der wissenschaftlichen Literatur zum Thema „Fiber reinforced metal“

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Veröffentlicht am 25. Mai 2024

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Zeitschriftenartikel zum Thema "Fiber reinforced metal"

1

ABE, YASUAKI. „Fiber Reinforced Metal“. Sen'i Gakkaishi 41, Nr. 6 (1985): P173—P179. http://dx.doi.org/10.2115/fiber.41.6_p173.

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2

Xiaoyu, Jiang, und Kong Xiangan. „Computer Simulation of 3-D Random Distribution of Short Fibers in Metal Matrix Composite Materials“. Journal of Engineering Materials and Technology 121, Nr. 3 (01.07.1999): 386–92. http://dx.doi.org/10.1115/1.2812391.

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In this paper, the microstructure of “Saffil”-Al2O3 short fiber reinforced Al-Mg5.5 metal matrix composite material is simulated by computer. In the simulation it is taken into account of that the lengths, diameters, orientations, and locations of short fibers, etc. For the 3-D randomly distributed short fibers in composite materials, the typical distributions of short fiber microstructures on different planes are obtained for different short fiber volume fractions. The microstructural effects of average fiber length, diameter and their standard deviations on the overall strength of metal matrix composite materials are analyzed. From the short fiber microstructural distribution in metal matrix composite materials, the short fiber diameter coefficient ξd and short fiber length coefficient ξ1 are obtained for different standard deviations σd and σl, respectively. The short fiber orientation coefficient ξa is obtained, also. The results of these coefficients may be useful to the manufacture and use of short fiber reinforced composite materials. Considering these coefficients ξa ξd and ξl, the improved formula is given for the direct calculation of overall strength of short fibers reinforced composite materials. The improved formula may reflect the microstructural characteristics of short fibers reinforced composite materials.
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3

Salve, Aniket, Ratnakar Kulkarni und Ashok Mache. „A Review: Fiber Metal Laminates (FML’s) - Manufacturing, Test methods and Numerical modeling“. International Journal of Engineering Technology and Sciences 3, Nr. 2 (30.12.2016): 71–84. http://dx.doi.org/10.15282/ijets.6.2016.1.10.1060.

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Weight reduction of components is the main aim of different industrial sectors. This leads to increasing application areas of fiber composites for primary structural components. Aiming this objective, a new lightweight Fiber/Metal Laminate (FML) has been developed. Fiber metal laminate is one such material which is being widely investigated for its performance compared to existing material.. The most commercially available fiber metal laminates (FML’s) are ARALL (Aramid Reinforced Aluminium Laminate), based on aramid fibers, GLARE (Glass Reinforced Aluminium Laminate), based on high strength glass fibers and CARALL (Carbon Reinforced Aluminium Laminate), based on carbon fibers. The mechanical properties of FML show advantages over the properties of both aluminium alloys and composite materials individual. This paper reviews relevant literature which deals with different manufacturing techniques for FML’s with excellent properties under tensile, flexure and impact conditions. It also reviewed recent modeling techniques on FML’s. Modeling of tensile, flexure and impacts behavior on fiber metal laminates requires understanding the bonding between the metal and composite layer. Further research is necessary in the assessment of mechanical performance of complex structures in real world conditions.
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KWON, OH-HEON, und JI-WOONG KANG. „THE STRESS ANALYSIS AND THE CRACK BEHAVIOR ACCORDING TO THE CHARACTERISTIC OF THE INTERFACIAL REGION IN FIBER REINFORCED MMC“. International Journal of Modern Physics B 20, Nr. 25n27 (30.10.2006): 4457–62. http://dx.doi.org/10.1142/s0217979206041513.

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High performance composite reinforced with unidirectional continuous fibers are used in applications requiring high stiffness, high strength and light weight. Because of the high stiffness of the reinforced continuous fiber, the longitudinal performance of such unidirectional composites is greatly enhanced, but their transverse performance is so weak. The nature of the fiber/matrix interface is one of the important factors which determine the unique properties of the fiber reinforced metal matrix composites (MMCs). So, the current study is focused on the fracture behavior of the interface. Both stress state of the interface and crack parameters of the perpendicular crack to the interface for unidirectional fiber reinforced metal matrix composites under the transverse loading are investigated by using elastic-plastic finite element analysis. Different fiber volume fractions (5~60%) and arrangement (square and hexagon) of fibers were studied numerically. The fiber/matrix interface was treated as multi thin layer with different material properties. The fiber is assumed as linear elastic SiC and the matrix is assumed as elastic-plastic Ti -15-3 Titanium alloy. The results show that the stress distributions of the multi thin layer model have much less changes compared with a single interface case. And the properties of the interfacial zone affect the stress distribution, crack behavior and mechanical behavior of the fiber reinforced metal matrix composite.
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Stoll, Matthias, Franziska Stemmer, Sergej Ilinzeer und Kay André Weidenmann. „Optimization of Corrosive Properties of Carbon Fiber Reinforced Aluminum Laminates due to Integration of an Elastomer Interlayer“. Key Engineering Materials 742 (Juli 2017): 287–93. http://dx.doi.org/10.4028/www.scientific.net/kem.742.287.

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Fiber-Metal-Laminates (FML) show superior dynamic mechanical properties combined with low densities. The mechanical performance of for example commercially available fiber-metal-laminate, glass laminate aluminum reinforced epoxy, can be improved by the substitution of glass fibers with carbon fibers. However, carbon fiber reinforced aluminum laminate introduces a mismatch of coefficients of thermal expansion and the possibility of galvanic corrosion. The fiber-metal-laminate is altered by the integration of an elastomer interlayer which is desired to solve both problems. The high electrical resistance is supposed to inhibit the corrosion. This study focuses on the effect of galvanic corrosion caused by neutral salt spray tests on fiber-metal-laminates, the influence of an elastomer interlayer and the quantification of the residual mechanical properties. The galvanic corrosion affects the interfaces of the laminates, therefore in this study edge shear tests and flexural tests were carried out to quantify the residual properties and thereby the corrosive damage. The elastomer interlayer was found to inhibit galvanic corrosion in the salt spray chamber, whereas the fiber-metal-laminate without interlayer showed corrosive damage. Furthermore, the mechanical properties of the fiber-metal-laminate with elastomer interlayer remained constant after the corrosion tests, whilst the fiber-metal-laminate’s properties decreased with corrosive loads.
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Han, Dong Yeop, Min Cheol Han, Seong Hwan Yang und Cheon Goo Han. „Economic Aspect of Hybrid Fiber Reinforced Composite“. Advanced Materials Research 1129 (November 2015): 249–55. http://dx.doi.org/10.4028/www.scientific.net/amr.1129.249.

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The aim of this presentation is to recommend an economical technique for preparing fiber-reinforced mortar for blast resistant structures using polymer fibers. Fiber-reinforced concrete was developed to improve ductility by preventing micro-cracking. It is also used to strengthen blast resistant structures, and to prevent spalling under the fire conditions. Because of the better mechanical properties and bonding performance, metal fiber is mainly used for the blast resistant structure. However, because of the high cost of the fiber, the cost of the reinforced cementitious composite is higher than normal concrete. This is especially true for short steel fiber where its high cost has to be weighed against its outstanding performance. As a solution, a more economical substitute can be found in polymer fibers of nylon and polyvinyl alcohol fibers, which cut costs without a significant decrease in performance. In this study, for fiber-reinforced mortar, each fiber and combination of fibers incorporated made up 1% to the total volume of the mortar. For fresh state properties, although the mortar contained combined fibers, there was no significant decrease in flow and air content. As the polymer fibers were combined with steel fibers, approximately 35% of tensile strength and 12% of flexural strength decreased. However, from the strain-stress relationship, the fiber-reinforced mortar with combined fibers showed more favorable results than single steel fiber. The results of this study are expected to contribute on the economic approach of fiber-reinforced cementitious composites using combined fibers.
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Baru, Andre Juanda, Jefri S. Bale und Yeremias M. Pell. „ANALISIS KEKUATAN IMPAK KOMPOSIT HYBRID SERAT LONTAR DAN SERAT GELAS UNTUK APLIKASI HELM KENDARAAN BERMOTOR“. Jurnal Fisika : Fisika Sains dan Aplikasinya 7, Nr. 1 (24.04.2022): 75–81. http://dx.doi.org/10.35508/fisa.v7i1.5894.

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The fiber content of lontar fruit can be utilized in a non-metal composite substitute for a more expensive metal composite. Currently, non-metallic materials are widely used as substitutes for metal materials because they have various advantages, namely being lighter in weight, easier to shape, and cheaper. One of these non-metallic materials is fiberglass. The purpose of this study was to determine the effect of alkali treatment on the impact properties of polyester fiber reinforced palm fiber and glass fiber composites, the effect of concentrations of 5%, 10%, and 15% Alkali (NaOH) on the impact properties, and treatment time 0, 2, 4, and 6 hours on Impact properties of polyester composites reinforced with palm fiber and glass fibers. 20% of the test specimens were made according to the ASTMD256-04 standard and tested with an impact tester. The results of the impact test showed that composites with hybrid fibers (palm fiber and glass fiber) as well as composites with palm fiber which were treated with alkali tended to have greater impact properties than those not treated with alkali. Fiber-reinforced composites treated with 15% alkali had the highest average toughness, while the lowest impact toughness was composites with fiber reinforcement treated with 5% alkali. The length of time of treatment had an effect on the impact toughness of the composites.
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Sayyar, Mohammad, Anagi M. Balachandra und Parviz Soroushian. „Energy absorption capacity of pseudoelastic fiber-reinforced composites“. Science and Engineering of Composite Materials 21, Nr. 2 (01.03.2014): 173–79. http://dx.doi.org/10.1515/secm-2013-0021.

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AbstractPseudoelastic fiber-reinforced metal matrix composite with enhanced ductility and energy absorption capacity was developed. This composite system relies on the distributed nature of large pseudoelastic strains to mitigate localization of inelastic deformation and failure, and thus mobilizes a major fraction of volume for effective energy absorption. The pseudoelastic fibers were made of Ni-Ti-Cr alloy used in conjunction with two different matrices, aluminum and copper. Tension and pull-out tests were performed to evaluate the ductility and energy absorption capacity of control and pseudoelastic fiber-reinforced composites. Experimental results confirmed the ability of pseudoelastic fibers to induce distributed inelastic deformation within metal matrix composites for realizing major gains in ductility and energy absorption capacity.
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Frankiewicz, Mariusz, Grzegorz Ziółkowski, Robert Dziedzic, Tomasz Osiecki und Peter Scholz. „Damage to inverse hybrid laminate structures: an analysis of shear strength test“. Materials Science-Poland 40, Nr. 1 (01.03.2022): 130–44. http://dx.doi.org/10.2478/msp-2022-0016.

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Abstract Hybrid laminates with continuous fiber reinforcement, such as glass reinforced aluminium laminate (GLARE), aramid reinforced aluminum laminate (ARALL), or carbon reinforced aluminum laminate (CARALL), have been developed to increase the lightweight potential and fatigue resistance applied for aircraft structures. However, the use of thermosetting matrices imposes material limitations regarding recycling, malleability, and manufacturing-cycle times. The inverse hybrid laminate approach is based on a continuous fiber-reinforced thermoplastic matrix, in which a metal insert is integrated. For efficient manufacturing of the novel composites in high-volume production processes, conventional sheet metal–forming methods have been applied. It helped to reduce the cycle times and the costs of the forming equipment compared to currently used hybrid laminate-processing technologies. The present study analyzes the damage to the inverse hybrid laminate structures resulting from the interlaminar shear strength test. The tests were performed for eight laminate material configurations, which differed by the type and directions of the reinforced glass and carbon fibers in the polyamide matrix and the number of the fiber-reinforced polymer (FRP) layers in the laminates. Industrial computed tomography and scanning electron microscopy were used for analysis. Observed damages, including fiber–matrix debonding, fiber breakages, matrix fractures, interfacial debonding, and delamination in selected areas of the material, are strictly dependent on the laminate configurations. FRP layers reinforced by fibers perpendicular to the bending axis presented better resistance against fractures of the matrix, but their adhesion to the aluminum inserts was lower than in layers reinforced by fibers parallel to the bending axis.
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Nguyen, Dinh Tuyen, und Huu Cuong Le. „Potential of jute fiber-reinforced composites in the manufacture of components and equipment used on ships and hulls“. Journal of Emerging Science and Engineering 1, Nr. 1 (02.09.2023): 14–21. http://dx.doi.org/10.61435/jese.2023.3.

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In today's maritime field, metal materials are very popular, but they have certain limitations. To meet a variety of requirements, many new materials have been used, including fiberglass reinforced composites, but these materials are often difficult to decompose, have poor recyclability, and cause a great impact on the environment after a period of use. There have been many studies aimed at using natural fibers to replace glass fibers in order to solve the limitations of glass fiber reinforced composites. Jute is one of the most popular natural fibers. Recently, researchers have focused their attention on jute fiber-reinforced composites. This article will talk about the potential of jute fiber reinforced composites applied to the manufacture of components and equipment used on ships and hulls.
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Dissertationen zum Thema "Fiber reinforced metal"

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Al-lami, Karrar Ali. „Experimental Investigation of Fiber Reinforced Concrete Beams“. PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2296.

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Shear strength of fiber reinforced concrete beams was studied in this research project. Three types of fibers were examined: hooked-end steel fiber, crimped-steel fiber, and crimped-monofilament polypropylene fibers. The experimental program included five beam specimens. Two of the beams were control specimens in which one was reinforced with minimum shear reinforcement according to ACI 318, while the other one did not have any shear reinforcement. Each one of the other three specimens was reinforced with one of the above mentioned fibers by 1% volumetric ratio. In addition to the beam specimens, three prisms were also made for each type fiber to determine their toughness. The aim of this research was to investigate the following questions for medium-high concrete strength 1) to evaluate the effectiveness of each type of fibers on the shear strength, 2) to investigate the shear strength, toughness, crack patterns and near ultimate load crack width of each beam, and 3) to determine if using 1% volumetric ratio of fibers as shear reinforcement in beams would provide adequate strength and stiffness properties comparable to reinforcing steel used as minimum shear reinforcement. The results showed that all three types of fibers increased the shear capacity of the beam specimens more than the beam reinforced with minimum shear reinforcement. Moreover, some of the fibers used could shift the type of failure from a pure shear failure to a combined flexural-shear or pure flexural failure.
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Osiecki, Tomasz, Colin Gerstenberger, Holger Seidlitz, Alexander Hackert und Lothar Kroll. „Behavior of Cathodic dip Paint Coated Fiber Reinforced Polymer/Metal Hybrids“. Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-175536.

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Increasing mechanical, economic and environmental requirements lead to multi material designs, wherein different classes of materials and manufacturing processes are merged to realize lightweight components with a high level of functional integration. Particularly in automotive industry the use of corresponding technologies will rise in the near future, as they can provide a significant contribution to weight reduction, energy conservation and therefore to the protection of natural resources. Especially the use of continuous fiber reinforced polymers (FRP) with thermoplastic matrices offers advantages for automotive components, due to its good specific characteristics and its suitability for mass production. In conjunction with isotropic materials, such as steel or aluminum, optimized lightweight structures can be produced, whose properties can be easily adapted to the given component requirements. The present paper deals with the development of innovative hybrid laminates with low residual stresses, made of thin-walled steel sheets and glass fiber reinforced thermoplastic (GFRP) prepregs layers. Thereby the interlaminar shear strength (ILSS) was increased by an optimization of the FRP/metal-interfaces, carried out by examining the influence of several pre-operations like sanding, cleaning with organic solvents and applying primer systems. Based on these findings optimized compound samples were prepared and tested under realistic Cathodic dip paint conditions to determine the influence on the ILSS.
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Yang, Yanzhe. „Fabrication of Long-Fiber-Reinforced Metal Matrix Composites Using Ultrasonic Consolidation“. DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/213.

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This research is a systematic study exploring a new fabrication methodology for long-fiber-reinforced metal matrix composites (MMCs) using a novel additive manufacturing technology. The research is devoted to the manufacture of long-fiber-reinforced MMC structures using the Ultrasonic Consolidation (UC) process. The main objectives of this research are to investigate the bond formation mechanisms and fiber embedment mechanisms during UC, and further to study the effects of processing parameters on bond formation and fiber embedment, and the resultant macroscopic mechanical properties of UC-made MMC structures. From a fundamental research point of view, bond formation mechanisms and fiber embedment mechanisms have been clarified by the current research based on various experimental observations. It has been found that atomic bonding across nascent metal is the dominant bond formation mechanism during the UC process, whereas the embedded fiber are mechanically entrapped within matrix materials due to significant plastic deformation of the matrix material during embedment. From a manufacturing process point of view, the effects of processing parameters on bond formation and fiber embedment during the UC process have been studied and optimum levels of parameters have been identified for manufacture of MMC structures. An energy-based model has been developed as a first step toward analytically understanding the effects of processing parameters on the quality of ultrasonically consolidated structures. From a material applications point of view, the mechanical properties of ultrasonically consolidated structures with and without the presence of fibers have been characterized. The effects on mechanical properties of UC-made structures due to the presence of embedded fibers have been discussed.
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Lam, Su Ki. „Design of tough, metal fibre reinforced ceramics for use at high temperatures“. Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708380.

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Funn, John V. „Creep behavior of the interface region in continuous fiber reinforced metal-matrix composites“. Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA341255.

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Thesis (M.S. in Mechanical Engineering) Naval Postgraduate School, September 1997.
"September 1997." Thesis advisor(s): Indranath Dutta. Includes bibliographical references (p. 91-93). Also available online.
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Richard, Brandon Demar. „Thermal Infrared Reflective Metal Oxide Sol-Gel Coatings for Carbon Fiber Reinforced Composite Structures“. Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4569.

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Recent trends in composite research include the development of structural materials with multiple functionalities. In new studies, novel materials are being designed, developed, modified, and implemented into composite designs. Typically, an increase in functionality requires additional material phases within one system. The presence of excessive phases can result in deterioration of individual or overall properties. True multi-functional materials must maintain all properties at or above the minimum operating limit. In this project, samples of antimony and cobalt-doped tin oxide (ATO(Co2O3)) sol-gel solutions are used to coat carbon fibers and are heat treated at a temperature range of 200 - 500 °C. Results from this research are used to model the implementation of sol-gel coatings into carbon fiber reinforced multifunctional composite systems. This research presents a novel thermo-responsive sol-gel/ (dopant) combination and evaluation of the actuating responses (reflectivity and surface heat dissipation) due to various heat treatment temperatures. While ATO is a well-known transparent conductive material, the implementation of ATO on carbon fibers for infrared thermal reflectivity has not been examined. These coatings serve as actuators capable of reflecting thermal infrared radiation in the near infrared wavelengths of 0.7-1.2 μm. By altering the level of Co2O3 and heat treatment temperatures, optimal optical properties are obtained. While scanning electron microscopy (SEM) is used for imaging, electron diffraction spectroscopy (EDS) is used to verify the compounds present in the coatings. Fourier transform infrared (FT-IR) spectroscopy was performed to analyze the chemical bonds and reflectivity in the infrared spectra after the heat treatments. Total reflection and angle-dependent reflectivity measurements were performed on the coatings in the wavelengths of 0.7-2 μm. Laser induced damage threshold testing was done to investigate the dielectric breakdown and used to calculate surface temperatures.
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Butler, Joseph Edmund. „In-situ Fiber Strength Distribution in NextelTM 610 Reinforced Aluminum Composites“. Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/32433.

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MetPreg, a composite developed by Touchstone Research Laboratories (Tridelphia, WV), is an aluminum metal matrix composite reinforced by continuous NextelTM 610 alumina fibers. The question is, after processing, are the NextelTM fibers affected in any way that their strengthening contribution to the composite is reduced? From experimentation and statistical analysis, a strength distribution of pre-processed NextelTM 610 fibers is formed and an empirical correlation is developed relating strength to the observed flaw size on the failed single fibers. This correlation is then independently applied to flaw size information gathered from fibers on the fracture surface of MetPreg samples to develop a separate strength distribution of post-processed NextelTM 610 fibers. The pre- and post-processed distributions are compared to one another to determine the effect, if any, that composite processing has on the strength of NextelTM 610 fibers. The results indicate that the in-situ strength distribution of fibers was increased by composite processing.
Master of Science
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Durkin, Craig Raymond. „Low-Cost Continuous Production of Carbon Fiber-Reinforced Aluminum Composites“. Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19857.

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The research conducted in this study was concerned with the development of low-cost continuous production of carbon fiber/aluminum composites. Two coatings, alumina and zirconia, were applied to the fibers to protect against interfacial degradation. They were applied using a sol-gel method and common metal salts. The fibers were infiltrated with molten aluminum using an ultrasound sonicator. The resultant composites were well-infiltrated and were tested in tension to determine their mechanical properties. Strengths were only 15-35% of the theoretical values predicted by the rule of mixtures. The composite microstructure revealed a sizable void fraction and that the fibers within the composites did not contain any coating on their surface. It was hypothesized that this was a result of few exposed graphite plane edges on the fiber surface, causing poor adhesion of the oxide coating to the fiber surface. To improve adhesion, an amorphous carbon coating was applied to the fiber surface, but still the oxide coatings were removed from the fibers upon infiltration. It was found, however, that the carbon coating on its own did strengthen the interface between the fiber and the aluminum.
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Belghiti, Moulay El Mehdi. „Influence of steel fibres on response of beams“. Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100222.

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The following thesis presents the results of six full scale beams tests as part of a research program conducted at McGill University on the effect of steel fibres on the shear capacity of a beam with an aid ratio greater than 2.5. The test specimens had the following dimensions: 4400 mm long, 300 mm wide and 500 mm long. The beams had 4-25M bottom reinforcing bars and 2-20M top reinforcing bars. Two series were designed with different reinforcing details: the "BA" series contained transverse reinforcement spaced at 275 mm center to center while the "BB" series had no transverse reinforcement. The specimens were cast in three batches of two specimens from each series, with each batch containing concrete with respectively 0%, 0.5% and 1% fibres content by volume. The beams were simply supported and were tested with two equal point loads located at 500 mm from the centre of the beam.
This research project demonstrated a clear improvement of the shear capacity resulting from the use of steel fibres for the beams without transverse reinforcement. For the beams with transverse reinforcement, displacement ductility was highly increased. This suggests that fibres have the potential to reduce the congestion of the reinforcement if fibres are designed to replace partially closely spaced transverse reinforcement. Also, it was noted that a redistribution of stresses occurred resulting in the formation of more well-controlled cracks. Finally, the strength predictions using the method developed by Aoude (Aoude, 2007) agree very well with the experimental results.
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Tu, Zhiqiang. „Fabrication and Mechanical Properties of Carbon Fiber Reinforced Aluminum Matrix Composites by Squeeze Casting“. Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40523.

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Rapid modern technological changes and improvements bring great motivations in advanced material designs and fabrications. In this context, metal matrix composites, as an emerging material category, have undergone great developments over the past 50 years. Their primary applications, such as automotive, aerospace and military industries, require materials with increasingly strict specifications, especially high stiffness, lightweight and superior strength. For these advanced applications, carbon fiber reinforced aluminum matrix composites have proven their enormous potential where outstanding machinability, engineering reliability and economy efficiency are vital priorities. To contribute in the understanding and development of carbon fiber reinforced aluminum matrix composites, this study focuses on composite fabrication, mechanical testing and physical property modelling. The composites are fabricated by squeeze casting. Plain weave carbon fiber (AS4 Hexcel) is used as reinforcement, while aluminum alloy 6061 is used as matrix. The improvement of the squeeze casting fabrication process is focused on reducing leakage while combining thermal expansion pressure with post-processing pressing. Three different fiber volume fractions are investigated to achieve optimum mechanical properties. Piston-on-ring (POR) bend tests are used to measure the biaxial flexural stiffness and fracture strength on disc samples. The stress-strain curves and fracture surfaces reveal the effect of fiber-matrix interface bonding on composite bend behaviour. The composites achieved up to 11.6%, 248.3% and 90.1% increase in flexural modulus, strain hardening modulus and yield strength as compared with the unreinforced aluminum alloy control group, respectively. Analytical modelling and finite element modelling are used to comparatively characterise and verify the composite effective flexural modulus and strength. Specifically, they allowed iii evaluating how far the experimental results deviate from idealized assumptions of the models, which provides an insight into the composite sample quality, particularly at fiber-matrix interfaces. Overall, the models agree well with experimental results in identifying an improvement in flexural modulus up to a carbon fiber volume fraction of 4.81vol%. However, beyond a fiber content of 3.74vol%, there is risk of deterioration of mechanical properties, particularly the strength. This is because higher carbon fiber volume fractions restrict the infiltration and wetting of carbon fibre by the liquid, potentially leading to poor fiber-matrix interface bonding. It is shown that higher thermal expansion pressures and subsequent post-processing pressing can overcome this challenge at higher carbon fiber volume contents by reducing fiber-aluminum contact angle, improving infiltration, reducing defects such as porosity, and overall improving fiber-matrix bonding.
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Bücher zum Thema "Fiber reinforced metal"

1

McDanels, David L. Tungsten fiber reinforced copper matrix composites: A review. [Washington, D.C.]: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1989.

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North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Characterisation of fibre reinforced titanium matrix composites. Neuilly sur Seine, France: AGRD, 1994.

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North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Characterisation of fibre reinforced titanium matrix composites. Neuilly sur Seine, France: AGARD, 1994.

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4

Grobstein, Toni. Creep behavior of tungsten fiber reinforced niobium metal matrix composites. [Washington, DC]: U.S. Dept. of Energy, Nuclear Energy, Reactor Systems Development and Technology, 1989.

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Johnson, W. S. Fatique testing and damage development in continuous fiber reinforced metal matrix composites. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1988.

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6

A, Leckie Frederick, und United States. National Aeronautics and Space Administration., Hrsg. Elasto-plastic analysis of interface layers for fiber reinforced metal matrix composites. [Washington, DC]: National Aeronautics and Space Administration, 1991.

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7

Funn, John V. Creep behavior of the interface region in continuous fiber reinforced metal-matrix composites. Monterey, Calif: Naval Postgraduate School, 1997.

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M, Arnold S., Iyer Saiganesh K und Lewis Research Center, Hrsg. Flow/damage surfaces for fiber-reinforced metals having different periodic microstructures. [Cleveland, Ohio]: National Aeronautics and Space Administration, Lewis Research Center, 1998.

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Johnson, W. S. Fatigue damage growth mechanisms in continuous fiber reinforced titanium matrix composites. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1990.

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Johnson, W. S. Fatigue damage growth mechanisms in continuous fiber reinforced titanium matrix composites. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1990.

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Buchteile zum Thema "Fiber reinforced metal"

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Jia, Zehui, Lingwei Xu, Shuangkai Huang, Haoran Xu, Zhimo Zhang und Xu Cui. „Preparation and Impact Resistance of Carbon Fiber Reinforced Metal Laminates Modified by Carbon Nanotubes“. In Lecture Notes in Civil Engineering, 306–13. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_27.

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AbstractFiber reinforced metal laminates (FMLs) are a kind of interlaminar hybrid composites made of metal sheets and fibers alternately stacked and cured at a certain pressure and temperature. In this paper, through the simulation of ABAQUS finite element software and recording the change of projectile velocity, the energy loss of projectile is calculated and the impact resistance is judged. Through the comparison of three groups of simulation experimental results, the energy absorbed by carbon fiber reinforced metal laminate is about 300 times that of aluminum alloy plate, which fully shows that carbon fiber reinforced metal composite has excellent impact resistance compared with aluminum alloy. After adding 1 wt% carbon nanotubes to carbon fiber reinforced metal laminates, the absorbed energy is about 10 times that of the original, which shows that carbon nanotubes improve the ultimate yield stress of resin and materials in epoxy resin and enhance the weakness that the composites are easy to delamination under impact load.
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Bose, Tanmoy, Subhankar Roy und Kishore Debnath. „Detection of Delamination in Fiber Metal Laminates Based on Local Defect Resonance“. In Reinforced Polymer Composites, 147–64. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2019. http://dx.doi.org/10.1002/9783527820979.ch8.

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Rath, Jan-Erik, Robert Graupner und Thorsten Schüppstuhl. „Die-Less Forming of Fiber-Reinforced Plastic Composites“. In Lecture Notes in Mechanical Engineering, 3–14. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-18326-3_1.

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AbstractFiber-reinforced plastics (FRP) are increasingly popular in light weight applications such as aircraft manufacturing. However, most production processes of thin-walled FRP parts to date involve the use of expensive forming tools. This especially hinders cost-effective production of small series as well as individual parts and prototypes. In this paper, we develop new possible alternatives of highly automated and die-less production processes based on a short review of current approaches on flexible thin-walled FRP production. All proposed processes involve robot guided standard tools, similar to incremental sheet metal forming, for local forming of the base materials. These include woven glass fiber fabrics which are locally impregnated with thermoset resin and cured using UV-light, woven commingled yarns made out of glass fibers and thermoplastic fibers which are locally heated and pressed, as well as pre-consolidated thermoplastic organo sheets which require selective heating for forming. General applicability of the processes is investigated and validated in practical experiments.
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Ko, Yu-Fu, und Jiann-Wen Woody Ju. „Fiber Cracking and Elastoplastic Damage Behavior of Fiber Reinforced Metal Matrix Composites“. In Handbook of Damage Mechanics, 1023–53. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-5589-9_12.

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Ko, Yu-Fu, und Jiann-Wen Woody Ju. „Fiber Cracking and Elastoplastic Damage Behavior of Fiber Reinforced Metal Matrix Composites“. In Handbook of Damage Mechanics, 1–28. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8968-9_12-1.

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Silber, M., M. Wenzelburger und R. Gadow. „Advanced Manufacturing for Fiber Reinforced Metal Matrix Composites (MMC)“. In Sustainable Automotive Technologies 2010, 199–206. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-10798-6_25.

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Rack, H. J., I. Gheorghe, K. Kharia und A. C. Geiculescu. „In-Situ Fabrication of Fiber Reinforced Metal Matrix Composites“. In Affordable Metal-Matrix Composites for High Performance Applications II, 211–21. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118787120.ch16.

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Feistauer, Eduardo E., und Sergio T. Amancio-Filho. „Ultrasonic Joining of Lightweight Alloy/Fiber-Reinforced Polymer Hybrid Structures“. In Joining of Polymer-Metal Hybrid Structures, 307–33. Hoboken, NJ: John Wiley & Sons, Inc, 2017. http://dx.doi.org/10.1002/9781119429807.ch11.

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Grelsson, B., und K. Salama. „Elastic Anisotropy in Particle/Fiber Reinforced Aluminum Metal Matrix Composites“. In Review of Progress in Quantitative Nondestructive Evaluation, 1441–47. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-5772-8_185.

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Pidge, Abhijeet, Aniket Salve, Ashok Mache, Aparna Kulkarni und Yashwant Munde. „Effect on Vibration Characteristics of Fiber Metal Laminates Reinforced with Jute/glass Fibers“. In Advances in Engineering Materials, 105–16. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4758-4_11.

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Konferenzberichte zum Thema "Fiber reinforced metal"

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Dietrich, F. „High speed impact cutting of continuous fiber reinforced thermoset plastics“. In Sheet Metal 2023. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902417-39.

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Abstract. Endless fiber-reinforced plastics are being used to an increasing extent as alternative materials for highly stressed or lightweight components instead of metallic materials. In order to achieve the geometric requirements, peripheral machining of the raw parts is necessary. Instead of the currently mainly used cutting processes, which are not suitable for clocked production, high-speed impact cutting (HSIC) was examined in the presented experiments. This technology is known as adiabatic cutting from the processing of metallic materials. Due to the high process energy which is released in a very short time resulting in high punch speed, the prevailing separation mechanism changes. Instead of bending the fibers due to the shear force the high-speed cutting experiments with a punch speed of 10 m/s lead to a brittle shearing of the glass fibers and a locally very limited heating and hence softening of the matrix material resulting in a clean surface of the cut specimen. The inter fiber breakage, meaning the separation between fibers and matrix called delamination, can be avoided or at least be sealed at the surface due to heat induced smearing of the matrix material. The resulting surface quality of the cutting edge is exceptionally good. However, the technically necessary cutting clearance leads to a jump in diameter within the cut surface.
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Rath, J. E. „Die-less forming of fiber-reinforced thermoplastic sheets and metal wire mesh“. In Sheet Metal 2023. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902417-5.

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Abstract. The growing market for fiber-reinforced thermoplastics (FRTP) requires new flexible production processes for prototype and small series production, as conventional forming techniques involving molds are not cost efficient in these cases. Inspired by incremental sheet metal forming (ISF), an alternative manufacturing processes for the forming of FRTP with just two robot guided standard tools is outlined. To maintain a locally formed shape in the heated, flexible fabric, auxiliary wire mesh metal is used as it has similar deformation mechanisms, especially shearability, while being sufficiently self-supporting. Feasibility of the approach is discussed and investigated in basic experiments.
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Yeh, P. C., P. Y. Chang, J. M. Yang, P. H. Wu und M. C. Liu. „Bolt Bearing Strength of Commingled Boron/Glass Fiber Reinforced Aluminum Laminates“. In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-85925.

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The bearing properties of recently developed hybrid fiber/metal laminates, or COmmingled Boron/glass fiber Reinforced Aluminum laminates (COBRA), are investigated in this study. The bolt-type bearing tests on GLass REinforced aluminum laminates (GLARE), non-commingled hybrid boron/glass/aluminum fiber/metal laminates (HFML) and COBRA were carried out as a function of e/D ratio, metal volume fraction, fiber volume fraction, and fiber orientation. Experimental results show that with the same joint geometry and metal volume fraction, the commingling of boron fibers improves the bearing strength of fiber/metal laminates. The bearing strength of COBRA with longitudinal fibers is lower than that with transverse fibers due to the fact that shearout failure takes place before maximum bearing strength is reached. The experimental results show that, with only either transverse fiber orientation or longitudinal fiber orientation, COBRA with 18% boron fiber volume fraction possesses a higher bearing strength when compared to HFML with 6% boron fiber volume fraction. In addition to the properties in COBRA with parallel-plies commingled prepreg, the bearing properties of various COBRA with [0°/90°] and [0°/90°/90°/0°] cross-ply commingled prepregs are also discussed.
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Richter, B. „Extrusion as an energy-efficient manufacturing process for thermoplastic organosheets“. In Sheet Metal 2023. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902417-43.

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Abstract. Organosheets combine the advantages of reinforcement fibers and thermoplastic polymers. By pairing these two materials, composites with outstanding mechanical properties and low densities can be produced. These semi-finished products can be further processed into complex and functionalized components by thermoforming or injection molding. There are a number of different manufacturing processes for continuous fiber reinforced thermoplastics (CFRT), however, most of them require long production times and recurrent melting of the polymer resulting in high energy and manufacturing costs. This study presents a novel extrusion process, that enables a continuous production of reinforced thermoplastic sheets with only one melting step. Due to the high energy efficiency and wide range of processible materials, this process shows a high potential for an economical production of CFRT. To investigate the extrusion process in more detail, the influence of the processing and the flow behavior of the polymer on the impregnation quality and the mechanical properties of the composites were studied. The results showed increasing fiber volume contents with lower polymer viscosities. Furthermore, higher die temperatures and pressures resulted in higher fiber volume contents and thus in higher mechanical properties. The experiments also revealed that a complete impregnation can currently not be achieved without an additional small double belt press due to the line load of the calender, the high viscosity of the melt and the short impregnation time.
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Canumalla, Sridhar, und Robert N. Pangborn. „Fatigue Damage Evolution in a Short Fiber Reinforced Metal Matrix Composite“. In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-0498.

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Abstract The micromechanisms of fatigue failure of a short, alumina-silicate fiber reinforced cast aluminum alloy (A356) are investigated in this study. The nature of damage evolution is studied by three complementary perspectives — i) monitoring of the mechanical response, ii) microscopy on the gage length and fracture surface, and iii) probing of the microstructural changes in the bulk nondestructively using acoustic emission. The damage evolution in the composite is driven by strain or fatigue cycles imposed on the specimen and is manifested as three distinct mechanisms: a) cracking at hollow shot particles early in the life, b) microcracking in the form of fracture of fibers oriented in the direction of the loading and splitting or decohesion at fiber/matrix interface of transversely oriented fibers, and c) void formation at fiber ends and other stress concentrations. The interaction among the different modes, which defines the evolution of microstructural damage, is described. A flow chart for the progression of damage is presented and the most important steps in the damage evolution are identified. Suggestions are made for improving fatigue performance by tailoring the microstructure of the composite.
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Sepiani, H. A., A. Afaghi-Khatibi und M. Mosavi-Mashhadi. „Micromechanical Modeling of Fiber Reinforced Metal Laminates Under Biaxial Deformation“. In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61279.

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This presentation examines theoretically the elastic behavior of fiber reinforced metal laminates composed of layers of two types. Woven flexible fabric and metal, in which woven flexible fabric layer includes of sinusoidal shaped fibers. The composite is subjected under biaxial/uniaxial deformation. The theoretical analysis is based upon the Lagrangian description of deformation and the strain-energy density which is assumed to be a function of the Lagrangian strain components referring to the principle material coordinates. The micromechanical model has been obtained using strain energy of components. Finally, the model was solved numerically and then results were compared with published literatures.
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Bao, G., und R. M. McMeeking. „Fatigue Cracking in Fiber-Reinforced Metal Matrix Composites Under Mechanical and Thermal Loads“. In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-315.

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This article reviews micromechanical models developed for fatigue cracking in fiber reinforced metal matrix composites under mechanical and thermal loads. Emphases is placed on the formulae and design charts that can quantify the fatigue crack growth and fiber fracture. The composite is taken to be linear elastic, with unidirectional aligned fibers. Interfacial debonding is assumed to occur readily, allowing fibers to slide relative to the matrix resisted by a uniform shear stress. The fibers therefore bridge any matrix crack which develops. The crack bridging traction law includes the effect of thermal expansion mismatch between the fiber and the matrix and a temperature dependence of the frictional shear stress. Predictions are made of the crack tip stress intensities, matrix fatigue crack growth and maximum fiber stresses under mechanical or thermomechanical loads. For composites under thermomechanical load, both in-phase and out-of-phase fatigue are modeled. The implications for life prediction for fiber reinforced metal matrix composites are discussed.
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Silber, M., und R. Gadow. „Advanced Production of Thermally Sprayed Prepregs for Unidirectional Fiber-Reinforced Light Metal MMCs“. In ITSC2008, herausgegeben von B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima und G. Montavon. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2008. http://dx.doi.org/10.31399/asm.cp.itsc2008p0578.

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Abstract Thermal spraying and thixoforging technologies can be combined in a new manufacturing method for the production of light metal matrix composites. Laminated prepregs are produced by coating unidirectional fiber bundles with light metal matrix material. The prepregs are heated up and densified by thixoforging to near net-shape composites. Compared to conventional technologies for the integration of fibers in light metal matrices, like squeeze casting, hot pressing and diffusion bonding, this method offers the possibility to realize complex component geometries with short cycle times. Due to its high deposition rate and reduced thermal load on the substrate, the arc wire spraying technique is used for the coating of fiber bundles with the matrix material (AlSi6). The final fiber volume content of the MMC can be tailored by the thickness of the coating. Prior to the coating process, a continuous fiber strand is coiled on a cylindrical workpiece with adapted dimensions by using a winding unit provided with fiber guiding system. The speed and horizontal range of the fiber guide unit can be continuously varied in order to control overlapping and ensure homogeneous thickness of the fiber layer. An efficient air cooling system is installed in order to control the thermal load, which affects the formation of microcracks and influence the final residual stress distribution in the coating. An innovative method to wind and coat continuous fibers for manufacturing fiber reinforced light metal matrix composites will be presented.
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Ju, J. W., H. N. Ruan und Y. F. Ko. „Micromechanical Evolutionary Elastoplastic Damage Model for Fiber-Reinforced Metal Matrix Composites With Fiber Debonding“. In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59487.

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A micromechanical evolutionary damage model is proposed to predict the overall elastoplastic behavior and interfacial damage evolution of fiber-reinforced metal matrix composites. Progressive debonded fibers are replaced by equivalent voids. The effective elastic moduli of three-phase composites, composed of a ductile matrix, randomly located yet unidirectionally aligned circular fibers, and voids, are derived by using a rigorous micromechanical formulation. In order to characterize the overall elastoplastic behavior, an effective yield criterion is derived based on the ensemble-area averaging process and the first-order effects of eigenstrains.
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Rangaswamy, Partha, und N. Jayaraman. „Finite Element Modeling for Prediction of Residual Stresses in Fiber Reinforced Metal Matrix Composites“. In ASME 1993 International Computers in Engineering Conference and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/cie1993-0058.

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Abstract In metal matrix composites residual stresses developing during the cool-down process after consolidation due to mismatch in thermal expansion coefficients between the ceramic fibers and metal matrix have been predicted using finite element analysis. Conventionally, unit cell models consisting of a quarter fiber surrounded by the matrix material have been developed for analyzing this problem. Such models have successfully predicted the stresses at the fiber-matrix interface. However, experimental work to measure residual stresses have always been on surfaces far away from the interface region. In this paper, models based on the conventional unit cell (one quarter fiber), one fiber, two fibers have been analyzed. In addition, using the element birth/death options available in the FEM code, the surface layer removal process that is conventionally used in the residual stress measuring technique has been simulated in the model. Such layer removal technique allows us to determine the average surface residual stress after each layer is removed and a direct comparison with experimental results are therefore possible. The predictions are compared with experimental results of an eight-ply unidirectional composite with Ti-24Al-11 Nb as matrix material reinforced with SCS-6 fibers.
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Berichte der Organisationen zum Thema "Fiber reinforced metal"

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Ghonem, H., und D. Osborne. High-Temperature Interphase Properties of SiC Fiber Reinforced Titanium Metal Matrix Composites. Fort Belvoir, VA: Defense Technical Information Center, Oktober 1996. http://dx.doi.org/10.21236/ada326145.

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Riveros, Guillermo, und Hussam Mahmoud. Underwater carbon fiber reinforced polymer (CFRP)–retrofitted steel hydraulic structures (SHS) fatigue cracks. Engineer Research and Development Center (U.S.), März 2023. http://dx.doi.org/10.21079/11681/46588.

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Recent advances in the use of fiber-reinforced polymers (FRP) to retrofit steel structures subjected to fatigue cracks have shown to be a viable solution for increasing fatigue life in steel hydraulic structures (SHS). Although several studies have been conducted to evaluate the use of FRP for retrofitting metal alloys and the promising potential of such has been well-demonstrated, the application has never been implemented in underwater steel structures. This Coastal and Hydraulics Engineering Technical Note presents the implementation of FRP patches to repair fatigue cracks at Old Hickory Lock and Dam miter gate.
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Gordon, Robin, Bill Bruce, Ian Harris, Dennis Harwig, George Ritter, Bill Mohr, Matt Boring, Nancy Porter, Mike Sullivan und Chris Neary. DE2004833409 Internal Repair of Pipelines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), Juli 2004. http://dx.doi.org/10.55274/r0012118.

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The two broad categories of fiber-reinforced composite liner repair and deposited weld metal repair technologies were reviewed and evaluated for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines.
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The interface in tungsten fiber reinforced niobium metal-matrix composites. Office of Scientific and Technical Information (OSTI), September 1989. http://dx.doi.org/10.2172/5827839.

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