Relevant bibliographies by topics / Composites systems

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Composites systems'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Composites systems"

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Kedward, K. T., and P. W. R. Beaumont. "The treatment of Fatigue and Damage Accumulation in Composite Design." Advanced Composites Letters 1, no. 4 (July 1992): 096369359200100. http://dx.doi.org/10.1177/096369359200100404.

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SUMMARY The process of design has traditionally involved a specialized treatment of damage accumulation and associated fatigue phenomena, e.g. Miners Rule. The treatment of such phenomena for the case of advanced composites tends to be complicated by the existence of a multiplicity of competing failure modes. The subject assumes even greater importance when the ever expanding types of composite systems are considered, i.e. Polymer Matrix Composites (PMC's), Ceramic Matrix Composites (CMC's) and Metal Matrix Composites (MMC's) to name the broader categories. All composite systems are considered herein to comprise continuous fiber reinforcements.
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Pędzich, Zbigniew. "Fracture of Oxide Matrix Composites with Different Phase Arrangement." Key Engineering Materials 409 (March 2009): 244–51. http://dx.doi.org/10.4028/www.scientific.net/kem.409.244.

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The paper presents the analysis of the fracture path in composites with the alumina or zirconia matrix containing inclusions of another oxide or tungsten carbide. The description concerns the fracture of composite systems with 10 vol.% of inclusions (particulate composites), other three-systems with 33 vol.% of inclusions of each phase and the two phase composite with the equal phase content (50 : 50 vol.%). The different phase proportion and diversified content of inclusions cause significant differences in the microstructure of composites. The main difference between particulate composites and composites with continuous phases depends on a possibility of occurrence of toughening mechanisms connected with crack – inclusions interactions. In connection with a different interphase boundary strength, this phenomenon leads to significant differences in the way of composite fracture. The presented results of mechanical properties of composites were analyzed in the aspect of their way of fracture.
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Matsuo, T. "Analysis on Thermoplastic Composites Systems." Advanced Composites Letters 1, no. 5 (September 1992): 096369359200100. http://dx.doi.org/10.1177/096369359200100504.

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Many kinds of molding materials and molding methods relating to thermoplastic composites have ever been developed. An attempt to make clear arrangement for these materials and molding methods was carried out. Materials were systematically classified. The relationships among materials, molding methods and molded parts were summarized in a table.
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Li, Yan, Han Zhang, Ton Peijs, and Emiliano Bilotti. "Graphene Delivery Systems for Hierarchical Fiber Reinforced Composites." MRS Advances 1, no. 19 (2016): 1339–44. http://dx.doi.org/10.1557/adv.2016.92.

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ABSTRACTThree different methods are evaluated for the introduction of graphene nanoplatelets (GNP) in hierarchical carbon- or glass fiber reinforced plastics. They involve; (1) direct infusion of GNP filled epoxy resin, (2) spray coating of GNP on fiber preforms and (3) the use of dissolvable thermoplastic interleaf carrier films. Direct infusion of GNP filled resin is the easiest method to deliver GNP into composite laminates but may lead to viscosity and filtration issues. Automated spray coating was set up to manufacture GNP modified carbon- or glass fiber fabrics, while graphene filled phenoxy interleaf films were manufactured by bar coating, both followed by resin infusion using neat epoxy resin to produce GNP modified epoxy laminates, without the disadvantages of GNP filled resins. No substantial difference in interlaminar shear strength (ILSS) for composites manufactured using the different delivery methods is found. However, the electrical conductivity of the GNP modified glass-fiber composites manufactured by spray coating of glass fabrics is two orders of magnitude higher than for laminates made by direct infusion of GNP modified resin.
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Xu, Ling, and Rui Yang. "Stearic Acid/Inorganic Porous Matrix Phase Change Composite for Hot Water Systems." Molecules 24, no. 8 (April 15, 2019): 1482. http://dx.doi.org/10.3390/molecules24081482.

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The storage and utilization of waste heat in low and medium temperature ranges using phase change materials (PCMs) is an effective technology to improve energy utilization efficiency in combined cooling, heating, and power (CCHP) systems. In this paper, stearic acid/inorganic porous matrix phase change composites were developed to store waste heat for hot water systems. Among them, stearic acid/expanded graphite (EG) phase change composite was highlighted and the thermal physical properties, the dynamic response, and the long-term cyclic stability were evaluated. The stearic acid concentrations in the composites were over 95 wt%. The thermal diffusion coefficients were 3–5 times higher than pure stearic acid, independent of composite densities. Accordingly, the heat storage and release times were decreased by up to 41% and 55%, respectively. After 100 cycles, the composites maintained good dynamic response and long-term cyclic stability, with heat storage density of 122–152 MJ/m3. Hence, this stearic acid/EG phase change composite exhibits excellent comprehensive performances. It is also easy to be prepared and flexible for various types of heat exchangers.
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Fodarella, Cristina, Heidi Kuivaniemi-Smith, Julie Gawrylowicz, and Charlie D. Frowd. "Forensic procedures for facial-composite construction." Journal of Forensic Practice 17, no. 4 (November 9, 2015): 259–70. http://dx.doi.org/10.1108/jfp-10-2014-0033.

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Purpose – The paper provides a detailed description of standard procedures for constructing facial composites. These procedures are relevant to forensic practice and are contained in the technical papers of this special issue; the purpose of this paper is also to provide an expanding reference of procedures for future research on facial composites and facial-composite systems. Design/methodology/approach – A detailed account is given of the interaction between practitioner and witness for producing a facial composite. This account involves an overview of the Cognitive Interview (CI) and the Holistic CI (H-CI) techniques used to obtain a description of the face of an offender (target); the authors then describe how this information is used to produce a composite from five popular face-production systems: Sketch, PRO-fit, Electronic Facial Identification Technique (E-FIT), EvoFIT and EFIT-V. An online annex is also made available to provide procedural information for additional composite systems. Practical implications – The work is valuable to forensic practitioners and researchers as a reference for interviewing techniques (involving a CI or an H-CI) and using facial-composite systems. Originality/value – The authors provide an accessible, current guide for how to administer interviewing techniques and how to construct composites from a range of face-production systems.
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Koh, Richard, Gisele Neiva, Joseph Dennison, and Peter Yaman. "Finishing Systems on the Final Surface Roughness of Composites." Journal of Contemporary Dental Practice 9, no. 2 (2008): 138–45. http://dx.doi.org/10.5005/jcdp-9-2-138.

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Abstract Aim This study evaluated differences in surface roughness of a microhybrid (Gradia™ Direct, GC America) and a nanofil (Filtek™ Supreme, 3M™ ESPE™) composite using four polishing systems: PoGo™/Enhance® (DENTSPLY/Caulk), Sof-Lex™ (3MTM ESPE™), Astropol® (Ivoclar Vivadent), and Optidisc™ (KerrHawe). Methods and Materials An aluminum mold was used to prepare 2 X 60 composite disks (10 mm X 2 mm). Composite was packed into the mold, placed between two glass slabs, and polymerized for 40 seconds from the top and bottom surfaces. Specimens were finished to a standard rough surface using Moore's disks with six brushing strokes. Specimens were rinsed and stored in artificial saliva in individual plastic bags at 36°C for 24 hours prior to testing. Specimens were randomly assigned to one of the four polishing systems and were polished for 30 seconds (10 seconds per grit) with brushing strokes according to the manufacturer's instructions. Mean surface roughness (Ra) was recorded with a surface-analyzer 24 hours after storage in artificial saliva, both before and after polishing. Means were analyzed using two-way and one-way analysis of variance (ANOVA) and Tukey multiple comparison tests at p < 0.05. Results There was a statistically significant difference for baseline measures between Filtek™ and Gradia™ (p=0.0338). For Filtek™, Sof-Lex™ provided a significantly smoother surface (Ra=0.80 ± 0.21) than Optidisc™ (Ra=0.93 ± 0.28), Astropol® (Ra=1.15 ± 0.24), and Pogo™/Enhance® (Ra=1.39 ± 0.39). For Gradia, Sof-Lex™ provided a significantly smoother surface (Ra=0.47 ± 0.09) and Astropol® provided a significantly rougher surface (Ra=1.39 ± 0.19) than Pogo™/Enhance® (Ra=1.11 ± 0.20) and Optidisc™ (Ra=1.15 ± 0.18). There was no significant difference in roughness between composites for individual polishing systems (p=0.3991). Conclusion Filtek™ specimens were smoother than Gradia™ specimens after baseline roughening. Sof- Lex™ provided the smoothest final surface when used with either composite. Astropol® provided a rough surface for Gradia™ specimens. Citation Koh R, Neiva G, Dennison J, Yaman P. Finishing Systems on the Final Surface Roughness of Composites. J Contemp Dent Pract 2008 February;(9)2:138-145.
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Gallyamov, A. R., I. D. Ibatullin, and A. Y. Murzin. "Improvement of Electrical Insulating and Anti-Wear Properties of Composites Used in Telemetry Systems." Applied Mechanics and Materials 792 (September 2015): 578–81. http://dx.doi.org/10.4028/www.scientific.net/amm.792.578.

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This article deals with the research results of electroinsulated and tribotechnical properties of composite materials on the basis of epoxide resin. The effect of fillers — micro-and nanopowders of various materials - on the properties of composites is examined. The use of composites in the manufacture of separators for telemetry systems is demonstrated.
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Bobek, Jiří, Petr Lenfeld, Jiří Habr, Martin Seidl, and Luboš Běhálek. "New Silane and MAPP Coupling Agents as Natural Composites Production Systems Improvement." Key Engineering Materials 669 (October 2015): 52–59. http://dx.doi.org/10.4028/www.scientific.net/kem.669.52.

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Still more and more applications using synthetic polymers find new material alternative in materials based on synthetic polymer filled with nature fibers mainly plant fibers. Not only in common applications but also in technical applications is possible to use nature fiber composites. But some additional modifications are necessary to perform to gain properties possible to use in technical applications. Mainly increasing adhesion between matrix and fibers is the most common intent of these additional operations. This paper deals with maleic anhydride based coupling agent and silane coupling agent effect in the polypropylene matrix and jute fiber composite and its mechanical properties. By using of silane coupling agents was achieved mechanical properties which are possible to compare with composites with glass fibers mechanical properties mainly in case of the flexural and tensile modulus and mainly was gained significant increasing of composite production system stability.
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Gudder, Stanley P. "Parts and Composites of Quantum Systems." Symmetry 13, no. 6 (June 8, 2021): 1031. http://dx.doi.org/10.3390/sym13061031.

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We consider three types of entities for quantum measurements. In order of generality, these types are observables, instruments and measurement models. If α and β are entities, we define what it means for α to be a part of β. This relationship is essentially equivalent to α being a function of β and in this case β can be employed to measure α. We then use the concept to define the coexistence of entities and study its properties. A crucial role is played by a map α^ which takes an entity of a certain type to one of a lower type. For example, if I is an instrument, then I^ is the unique observable measured by I. Composite systems are discussed next. These are constructed by taking the tensor product of the Hilbert spaces of the systems being combined. Composites of the three types of measurements and their parts are studied. Reductions in types to their local components are discussed. We also consider sequential products of measurements. Specific examples of Lüders, Kraus and trivial instruments are used to illustrate various concepts. We only consider finite-dimensional systems in this article. Finally, we mention the role of symmetry representations for groups using quantum channels.
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Dissertations / Theses on the topic "Composites systems"

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Palmer, Nathan Reed. "Smart Composites evaluation of embedded sensors in composite materials /." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/palmer/PalmerN0809.pdf.

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As an emerging form of renewable energy, horizontal wind turbines have experienced advancements in improving efficiency and reliability. These advances have pushed the limits of current technology used in wind turbines. Smart blades have been proposed as a method of addressing these limitations. Sensor integration within blade construction is the first step in development of smart blades. Thus, several low cost sensors were chosen, 1 axis strain gages, polyvinylidene fluoride films (PVDF), and single mode fiber optics either coated in acrylate or polyimide. To ensure successful bonding between sensor and composite two surface treatment techniques were developed. The first, dipping of the sensor into a bath of 20% by weight solution of nitric acid and the second was submersion of the sensor in the nitric acid for ten seconds prior to removal. These treatments were compared against sensors not surface treated prior to embedding. These sensors were embedded within samples created of fiberglass and epoxy or vinyl ester resin. Two different material tests were conducted. Tensile testing allowed for evaluation of sensor sensitivity, sensor failure point, material tensile modulus, and material tensile strength. Mode I fracture toughness evaluation, indicated the level of successful bonding which occurred during resin curing. Field Emission Scanning Electron Microscopy (FESEM) was conducted to further confirm the level of bonding between resin and sensor, post fracture. Results for embedded strain gages showed an adverse effect for vinyl ester samples. Epoxy samples fared better, thus concluding manufacturing success for epoxy samples, submersion being preferred, and alternative methods needed for vinyl ester samples. PVDF films had good qualitative FESEM images combined with increasing trends. It was concluded that integration for both resin groups with sensors submerged in nitric acid was successful. Fiber optics coated in acrylate also showed good bonding under FESEM imaging as well as testing. It was thus concluded that submersion was the preferred treatment. Lastly, fiber optics coated in polyimide embedded in vinyl ester composites showed significant drawbacks and it was concluded that alternative methods need exploration. Those embedded in epoxy were successfully integrated and submersion in nitric acid showed the most potential.
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Klug, Jeremy Hager. "High-performance adhesive systems for polymer composite bonding applications /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/9883.

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Hayes, Brian Steven. "Simulation engineering of polymeric prepreg composite systems /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/9906.

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Li, Wei. "Composite polymer/graphite/oxide electrode systems for supercapacitors." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439309266.

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Buehler, Frédéric Ulysse. "Viscoelastic processing and characterization of high-performance polymeric composite systems /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/9880.

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Teh, Kuen Tat. "Impact damage resistance and tolerance of advanced composite material systems." Diss., This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06062008-170512/.

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Hillermeier, Roman Werner. "Development engineering of advanced polymeric composite systems /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/9919.

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Anbarasu, Arungalai. "Characterization of defects in fiber composites using terahertz imaging." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24632.

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Gilbert, Eric Nicholas. "Interlayer modified prepreg systems for customized density applications /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/9889.

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Padipatvuthikul, Pavinee. "Fatigue studies on dental composites and bonding systems." Thesis, University of Liverpool, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485845.

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Introduction: Adhesion has become an important concept in modern restorative dentistry. It offers the ability to bond materials to the tooth without invasive tooth preparation. Numerous in-vitro strength tests have been used to determine the bond strength of adhesive systems. However, because the occlusal forces applied to. a restoration are complex, and made up of a combination of forces, no one test can satisfactorily predict the in-vivo behavior of an adhesive system. The majority of bond strength studies have used monotonic tests to assess the bond strength of materials and between the materials and the tooth. These tests are expedient, but do not simulate the cyclic forces that operate in the mouth. Tests that characterize this type of . stress are called fatigue tests. Fatigue can result in wear and fracture of materials or bonds. .Objectives: To investigate fatigue behavior of modern resin composites and resinbonded joints of both metal to enamel and ceramic to enamel. The main approaches to fatigue assessment, 'Fatigue Limit' and 'Fatigue Life'were compared Materials and Methods: Surface effects of fatigue One hundred and eighty samples of two historical composites1-2 and seven modern composites3 - 9 were subjected to 2000 stress cycles between 0 and 120N or 0 and 400N. Surface damage was measured as the diameter of the fatigue scar and subsurface damage was determined by silver nitrate staining. The hardness of both the surface and subsurface was also determined. Fracture Composite to composite Two hundred and twenty composite disks were fabricated using three materials.7 • 9 After one day, one week, four weeks, and twelve weeks, fifty-five specimens of each material were removed from' water and divided into three groups of fifteen and one group of ten. Each group of samples was treated with one of three bonding systems10- 12 before adding a sec~nd increment. For each material, ten samples were subjected to Shear test in a Universal Testing Machine13 (CHS= 50 mmlmin). The fatigue limit test using fifteen samples per group were used to determine the fatigue limit using the staircase method (Draughn 1979). Metal or Ceramic to Enamel (via resin) Three hundred and forty-two discs of Ni/Cr-alloy14 were cast and treated by either sandblasting with aluminium oxide, or by sandblasting followed by electrolytic-etching in HCI. The disks were bonded to etched enamel with one of three dental bonding systems.1S - 17 One hundred and seventy-one ceramic disks were fabricated by sintering ceramic powder.18 One surface of each disk was etched with porcelain etching-gel19 for fifteen minutes and sandblasted with 50 J.Im A120 3. The prepared disks were then divided into three groups and were bonded to etched enamel using one of three dental bonding systems.1S - 17 Ten specimens of each group were sUbjected to a shear bond test (CHS 50 mm/min) and seventeen specimens of each group to a staircase fatigue test to determine the fatigue limit of the bonds. The remaining specimens from each group were placed in the custom made fatigue testing machine and allowed to cycle to failure between 0-20 kg, 0-10 kg or 0-5 kg (n=10 per load). The number of cycles at failure was analysed by Weibull statistics to determine the fatigue life Results: The surface studies in composites indicated that both surface and subsurface damage increased with increasing load. In general, small-particle composites experienced less damage than the large particle materials. At 12 kg, the surface damage was inversely proportional to the surface hardness, whereas at 40 kg, it was proportional to the subsurface hardness. At both loads, subsurface damage was directly proportion to subsurface hardness. For the composite to composite bonds, the fatigue limit values were approximately 30% of the shear bond strength values and the values were significantly different (p<0.01) for all nine groups. For metal to enamel bonds, the fatigue limit (after 5000 cycles) varied between 10.7 and 16.8 MPa compared to 21.3 and 48 MPa for the shear strength. The values for all groups was significantly different (p<0.001). There was no significant correlation between the shear bond strength and the fatigue limit values (Pearson Correlation P<0.01). For all groups, the threshold stress at which the samples equid withstand over one million cycles (fatigue Life) was 2.5 MPa. For ceramic to enamel bonds, the fatigue limit (after 5000 cycles) varied between 11.41 and 13.74 MPa compared to 21.3 and 48 MPa for the shear strength. The values for all groups were significantly differ~nt (p<0.001). There was no significa~t correlation between the shear bond strength and the fatigue limit values (Pearson Correlation P<0.001). For all groups, the threshold stress at which the samples could withstand over one million cycles (fatigue Life) was 2.5 MPa. Conclusion: Fatigue damage to the surface and subsurface of composite was related to the hardness of the material. The values of the fatigue limit were significantly lower than the shear bond strength values. There was no correlation between fatigue limit and shear bond strength. The long term safety limit for resin bonded joints to enamel is 2.5 MPa. Neither the shear test, nor the fatigue limit test was an accurate predictor of the long-term fatigue behaviour of resin-bonded restorations. A fatigue limit test using 100,000 cycles may be a useful predictor of the fatigue life which, in these studies, was half of the fatigue limit at 100, 000 cycles but the only reliable test is to test to failure. The data presented in this thesis indicated that the shear bond strength is not pred!ctor of long term failure. lClearfil Posterior, Cavex. Holland. 20cclusin. ICI. UK. 3Concise, 3M. USA. 4Admira, VOCO, Germany. 5Grandio. VOCO. Germany. 6Grandio Flow, VOCO, Germany. 7Spectrum, Dentsply, Germany. 8Durafill VS, Heraeus Kulzer, Germany. 9Herculite XRV, Kerr, USA. 10Prime&Bond. Dentsply, Germany. 110ptibond solo plus, Kerr, USA. 12BisGMAffEGDMA. 3M ESPE. USA. 13Nene Instruments Ltd.• UK. 14yerabond II, Aalba Dent Inc., USA. 15Calibra with Prime & Bond Resin, Dentsply, Germany. 16Panavia with ED-Primers. Kuraray, Japan. 17Nexus with Optibond Solo Plus Resin, Kerr, USA. 18Vitadur Alpha, VITA Zahnfabrik. Germany. 19Porcelain Etch-it gels, American Dental Supply. USA.
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Books on the topic "Composites systems"

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Stephens, Joseph R. High temperature metal matrix composites for future aerospace systems. [Washington, DC]: National Aeronautics and Space Administration, 1987.

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White, Timothy J., ed. Photomechanical Materials, Composites, and Systems. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119123279.

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Boudenne, Abderrahim. Handbook of multiphase polymer systems. Hoboken, NJ: Wiley, 2012.

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Torres Marques, António, Sílvia Esteves, João P. T. Pereira, and Luis Miguel Oliveira, eds. Additive Manufacturing Hybrid Processes for Composites Systems. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44522-5.

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Merrick, Howard F. Advanced reinforcement systems for intermetallic applications. [Washington, DC]: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1993.

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name, No. Advanced SiC/SiC ceramic composites: Developments and applications in energy systems. Westerville, OH: The American Ceramic Society, 2002.

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E, Myers David. Parametric weight comparison of advanced metallic, ceramic tile and ceramic blanket thermal protection systems. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 2000.

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JFCC International Workshop on Fine Ceramics '98 (1998 Nagoya, Japan). Ceramic material systems with composite structures: Towards optimum interface control and design. Westerville, Ohio: American Ceramic Society, 1998.

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Tien, John K. Understanding the interdiffusion behavior and determining the long term stability of tungsten fiber reinforced niobium base matrix composite systems: Final report. [Cleveland, Ohio]: National Aeronautics and Space Administration, Lewis Research Center, 1990.

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L, Reifsnider K., Dillard David A, and Cardon A. H, eds. Progress in durability analysis of composite systems: Proceedings of the Third International Conference on Progress in Durability Analysis of Composites Systems, Blacksburg, Virginia, USA, 14-17 September 1997. Rotterdam, Netherlands: Balkema, 1998.

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Book chapters on the topic "Composites systems"

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Leckie, Frederick A., and Dominic J. Dal Bello. "Composites." In Strength and Stiffness of Engineering Systems, 1–32. Boston, MA: Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-49474-6_15.

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Korotcenkov, Ghenadii. "Polymer-Based Composites." In Integrated Analytical Systems, 185–95. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-7388-6_13.

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Karlsson, Anette M., and Mosobalaje O. Adeoye. "Composites, Multifunctional." In Encyclopedia of Complexity and Systems Science, 1283–302. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-0-387-30440-3_86.

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Singh, Abhay Kumar, and Tien-Chien Jen. "Chalcogenide Systems—Graphene Composites." In Chalcogenide, 228–73. First edition. | Boca Raton : CRC Press; Taylor & Francis: CRC Press, 2021. http://dx.doi.org/10.1201/9780429260827-6.

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Korotcenkov, Ghenadii. "Composites for Optical Sensors." In Integrated Analytical Systems, 209–22. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-7388-6_15.

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Biyani, Yogesh, L. G. Patil, and C. N. Kurhe. "Engineered Cementitious Composites." In Learning and Analytics in Intelligent Systems, 206–14. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-24314-2_27.

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Kowalewski, T., M. Kryszewski, and A. Gałęski. "Some Properties of Highly Filled Oriented Polyolefins with Chalk and Other Systems." In Polymer Composites, edited by Blahoslav Sedlácek, 141–52. Berlin, Boston: De Gruyter, 1986. http://dx.doi.org/10.1515/9783110856934-010.

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Weiss, Ingrid M. "Mineral-Chitin Composites in Molluscs." In Biologically-Inspired Systems, 57–93. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12919-4_2.

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Reifsnider, Ken. "Durability and Damage Tolerance of Fibrous Composite Systems." In Handbook of Composites, 794–809. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-6389-1_36.

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Marosi, G., G. Bertalan, P. Ana, I. Rusznák, and I. Molnár. "The Effects of Additives on the Structure and Mechanical Properties of Polypropylene-Filler Systems." In Polymer Composites, edited by Blahoslav Sedlácek, 457–64. Berlin, Boston: De Gruyter, 1986. http://dx.doi.org/10.1515/9783110856934-040.

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Conference papers on the topic "Composites systems"

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Malakooti, Mohammad H., and Henry A. Sodano. "Micromechanics Modeling of Multiphase Piezoelectric Composites." In ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/smasis2012-8100.

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Recent work on multifunctional materials has shown that a functionally graded interface between the fiber and matrix of a composite material can lead to improved strength and stiffness while simultaneously affording piezoelectric properties to the composite. However the modeling of this functional gradient is difficult through micromechanics models without discretizing the gradient into numerous layers of varying properties. In order to facilitate the design of these multi-phase piezoelectric composites, accurate models are required. In this work, multi-inclusion models are extended to predict the effective electroelastic properties of multiphase piezoelectric composites. The presented formulation will provide a general framework for modeling other coupled fields of heterogeneous materials. To evaluate the micromechanics modeling results, a three dimensional finite element model of a four-phase piezoelectric composite was created in the commercial finite element software ABAQUS with different volume fractions and aspect ratios. The simulations showed excellent agreement for predicting the electroelastic properties of the multiphase piezoelectric composites.
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Vaidya, Uday K. "Multifunctional sandwich composites." In Smart Materials, Structures, and Systems, edited by S. Mohan, B. Dattaguru, and S. Gopalakrishnan. SPIE, 2003. http://dx.doi.org/10.1117/12.514660.

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Saad, Pascinthe, Mamdouh M. Salama, and Ove Jahnsen. "Application of Composites to Deepwater Top Tensioned Riser Systems." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28325.

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As offshore exploration and production activities head to deeper water, extensive efforts have been focused on mitigating the potential challenges associated with deep- and ultra deep-water riser systems. Such challenges include overcoming the hydrostatic stresses associated with the increased length of water column as well as the increase in overall riser system weight. The implementation of composites in offshore applications is perceived as a promising path forward with composite materials offering many advantages including high specific strength and stiffness, lighter weight, enhanced corrosion resistance, high thermal insulation, improved structural damping and favorable fatigue performance characteristics. This paper focuses on evaluating the potential of composite materials for applications to deepwater top tensioned riser systems from the standpoint of possible impact on overall system cost and reliability. Many deepwater development concepts utilize top tensioned production riser systems, mainly, for conveying production fluids from the wellhead to the surface processing facilities in a dry tree based field development solution. Top tensioned risers can be configured as dual or single barrier systems and can either be hydraulically or hydro-pneumatically supported as on a typical TLP system or pneumatically supported through positively buoyant air cans as on a Spar riser system. Many advantages can be derived from the use of composites on buoyancy can systems. Such advantages include a reduced system weight, higher net lift, smaller diameter cans, improved efficiency and a positive impact on required inspection frequency. Main advantages of using composites for an entire TLP riser system include a significant reduction in both tension requirement and tensioner weight resulting in substantial reduction in total deck loads. An overall assessment of the economic and structural impact of using composites as an alternative to steel will be presented for riser systems and riser system components of both deepwater development concepts.
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MARX, JACOB, MARC PORTANOVA, and AFSANEH RABIEI. "Blast and Frag Response of Composite Metal Foam Armor Systems." In American Society for Composites 2017. Lancaster, PA: DEStech Publications, Inc., 2017. http://dx.doi.org/10.12783/asc2017/15184.

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Szostak, Marek, and Jacek Andrzejewski. "Thermal Properties of Polymer-Metal Composites." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20506.

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The objectives in this paper are to investigate the effects of the filler content and size on the effective thermal conductivity of the PE/Al; PE/Cu, PE/Fe and PE/bronze composites. The polymer matrix of the polymer/metal composites was two types of polyethylenes: LDPE and HDPE (from Basell Orlen). The following polymer/metal composites obtained by extrusion process containing: 10% by weight of Al, Cu, Fe and bronze powder in LDPE matrix and composites containing 5, 10, 15 and 20% by weight of Al flakes in HDPE polymer were prepared and tested. Adding in the extrusion process 10% by weight of bronze powder into the polyethylene, increased more than five times the thermal diffusivity of produced composite. Use as a filler 20% wt. of aluminum flake increases it by more than twice. The study showed the ability to produce polyethylene matrix composites with the addition of metal powder fillers (Al, Cu, Fe, and bronze). Analyzing the measuring results of thermal diffusivity coefficient by Angstrom method, it can be concluded that with the appropriate filler content, the particles are located close enough to each other to form a continuous conductive path, then the thermal diffusivity of the composite increases significantly.
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LI, ZHIYE, and MICHAEL LEPECH. "Deterioration Modeling of Large Glass Fiber Reinforced Polymer Composite Structures/Systems." In American Society for Composites 2019. Lancaster, PA: DEStech Publications, Inc., 2019. http://dx.doi.org/10.12783/asc34/31346.

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Loyola, Bryan R., Luciana Arronche, Valeria La Saponara, and Kenneth J. Loh. "Conductivity-Based Damage Detection in Carbon Fiber Composites." In ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/smasis2012-7958.

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Fiber-reinforced polymer (FRP) composites have become a primary structural material in many new structures, particularly in the aerospace, wind turbine, automobile, and marine industries, due to their higher strength-to-weight ratios, corrosion resistance, and ease of manufacturing. However, these composite materials have complex damages modes that are different from typical monolithic metallic alloys, such as delamination, fiber breakage, matrix cracking, and fiber-matrix debonding. These avenues of damage tend to manifest internally to the composite structure, making them nearly invisible to visual inspection. Several damage detection approaches have been introduced for the purpose of in situ non-destructive evaluation (NDE) of composites; however, many of these approaches require complex analysis methods, data interpolation for achieving spatial sensing, and/or embedding invasive sensors into the composites themselves. To allow for widespread implementation of a next-generation NDE approach for composites, an easily discernible, highly visual, and fast approach that does not adversely affect the structural performance of the composite laminate is needed. This study introduces the use of a spatially distributed electrical conductivity distribution mapping method called electrical impedance tomography (EIT). EIT reconstructs a material’s 2D or 3D electrical conductivity within a series of boundary electrodes. A 100 mA current is injected between two opposing electrodes while the adjacent differential voltages are measured at the remaining electrodes; this process is repeated for all opposing electrode pairs. Using a linear reconstruction algorithm, changes in electrical conductivity are spatially resolved and plotted for easy detection, localization, and evaluation of damage. This approach is validated by applying EIT to a set of carbon fiber-reinforced polymer composite laminates. First, damage has been simulated in composite parts by selectively removing portions of the structure and then verifying that EIT has captured this occurrence. After validation of the EIT method, pristine composite laminates have been subjected to low velocity impact damage. Before and after impact EIT readings have been taken. The differential conductivity reconstruction is presented. This work demonstrates the value of adopting electrical impedance tomography for in situ NDE of FRP composites.
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Lele, Aditya, Oliver J. Myers, and Suyi Li. "Fabrication and Testing of Kirigami-Inspired Multi-Stable Composites." In ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/smasis2018-7981.

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This paper aims at highlighting the fabrication procedures and proof-of-concept tests of a Kirigami inspired multi-stable composite laminate. Bistable composites consisting of asymmetric fiber layout have shown great potentials for shape morphing and energy harvesting applications. However, a patch of such a bistable composite is limited to very simple deformation when being snapped between its two stable equilibria (or states). To address this issue, this study investigates the idea of utilizing Kirigami, the ancient art of paper cutting, into the design and fabrication of bistable composite laminates. Via combining multiple patches of laminates and cutting according to prescribed Kirigami pattern, one can create a structure with multiple stable states and sophisticated deformation paths between them. This can significantly expand the application potentials of the multi-stable composites. This paper details the fabrication procedures for an elementary unit cell in the envisioned Kirigami composite and the results of proof-of-concept experiments, which measure the force required to switch the Kirigami composite between its different stable states. Preliminary results confirm that the Kirigami unit cell possesses multiple stable states depending on the underlying fiber layout. Each patch in the Kirigami composite could be snapped independently between stable states without triggering any undesired snapping in other patches. Moreover, a transient propagation of curvature change is observed when a patch in the Kirigami composite is snapped between its stable states. Such a phenomenon has not been reported in the bistable composite studies before. Results of this paper indicate that Kirigami is a powerful approach for designing and fabricating multi-stable composites with a strong appeal for morphing and adaptive systems. This paper highlights the feasibility and novelty of combining Kirigami art and bistable adaptive composites.
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Bria, Vasile, Iulian-Gabriel Birsan, Adrian Circiumaru, Victor Ungureanu, and Igor Roman. "Tribological Characterization of Particulate Composites." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-25302.

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Among composites, the polymer matrix ones are the cheapest and the easiest to form but they show major disadvantages such as poor electrical and thermal conductivity, low fire resistance etc. In the case of any composite, some of the properties may be designed, some of them may be obtained by using an appropriate forming technique and, at least, some of them may be improved by special treatments. In the case of polymer matrix composites the first two ways are recommended if we are taking into account the polymers’ properties while the last one will turn the PMC into an expensive material due to the costs of metal or oxide thin film deposition on polymeric surface. Is it possible to solve all the problems by material design and by developing a convenient forming technique? Powders are used as fillers in order to obtain bi-components composites. The most important aim is about the uniform distribution of particles in matrix. If the fillers’ particles are arranged into the polymer volume is possible to change the electro-magnetic behavior of the obtained composite making this one to act as a meta-material. The powders can be dielectric as talc, clay or ferrite can be magnetic active as ferrite, or electric active as CNT or carbon nano-fibers. All these powders have effects on the electromagnetic, thermal and mechanical properties of the composite. This study is about the influence of fillers on the tribological behavior of particulate composites. Epoxy resin was used as matrix and various powders were used to fill the polymer: ferrite, zinc, clay. The materials were thermally treated in order to reach the best polymer properties. Pin on disk fixture on a CETR-UTM had been used to determine the friction coefficient for each filler concentration. The Wear resistance of each material had been evaluated using the same apparatus but with some modifications.
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Circiumaru, Adrian, Vasile Bria, Iulian-Gabriel Birsan, Gabriel Andrei, and Dumitru Dima. "Some Properties of Stratified Composites." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-25303.

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The multi-component composites could represent the cheapest solution when controllable properties are required. In order to establish the right amount of filler it is necessary to analyze not only the electro-magnetic and mechanical properties but also, the thermal ones. The filler presence in the matrix produces discontinuities at the fibre-matrix interface with consequences regarding mechanical properties. Using a single filler it is possible to improve one or two properties electrical and thermal conductivity for instance and mean time to induce a decrease of other properties as bending strength, shock resistance etc. Using polymer layers with relatively high electrical conductivity as external layers of laminate and magnetic particles filled polymer as core layers. An electric circuit might be, at the same time, the reinforcement of a composite leading to lighter structures and, based on carbon fiber’s properties might transmit information about the material’s loading, temperature or integrity. Fabric reinforced or textile composites are used in aerospace, automotive, naval and other applications. They are convenient material forms providing adequate stiffness and strength in many structures. The microstructure of composite reinforced with woven, braided, or stitched networks is significantly different from that of tape based laminates. The properties of the composite depend not only on the properties of the components but on quality and nature of the interface between the components and its properties. Reinforced composites with filled epoxy matrix were formed using a hybrid technique consisting in layer-by-layer adding of reinforcement sheets into a glass mould. Various distributions of reinforcement sheets and filled polymer layers were realized in order to point out the ways in which the final properties might be controlled. Mechanical properties were analyzed.
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Reports on the topic "Composites systems"

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Shailendra Varma. Super-High Temperature Alloys and Composites from NbW-Cr Systems. Office of Scientific and Technical Information (OSTI), December 2008. http://dx.doi.org/10.2172/952944.

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Meigan C Aronson. Unconventional Magnetism in Low Carrier Density Systems and Nanoparticle Composites. Office of Scientific and Technical Information (OSTI), June 2008. http://dx.doi.org/10.2172/932227.

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Besmann, T. M. Assessment of ceramic composites for multimegawatt space nuclear power systems. Office of Scientific and Technical Information (OSTI), December 1986. http://dx.doi.org/10.2172/6839642.

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RA Wolf. Carbon-Carbon Composites as Recuperator Material for Direct Gas Brayton Systems. Office of Scientific and Technical Information (OSTI), July 2006. http://dx.doi.org/10.2172/884666.

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Thostenson, Erik T., and Tsu-Wei Chou. Carbon Nanotube-Based Composites for Future Air Force and Aerospace Systems. Fort Belvoir, VA: Defense Technical Information Center, March 2006. http://dx.doi.org/10.21236/ada448421.

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Yen, Chian-Fong, and Anthony A. Caiazzo. 3D Woven Composites for New and Innovative Impact and Penetration Resistant Systems. Fort Belvoir, VA: Defense Technical Information Center, July 2001. http://dx.doi.org/10.21236/ada393077.

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Contescu, Cristian I. Initial assessment of environmental effects on SiC/SiC composites in helium-cooled nuclear systems. Office of Scientific and Technical Information (OSTI), September 2013. http://dx.doi.org/10.2172/1096306.

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Menchhofer, Paul A. INVESTIGATION OF TITANIUM BONDED GRAPHITE FOAM COMPOSITES FOR MICRO ELECTRONIC MECHANICAL SYSTEMS (MEMS) APPLICATIONS. Office of Scientific and Technical Information (OSTI), April 2016. http://dx.doi.org/10.2172/1246779.

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Nguyen, Ba Nghiep, and Joshua Paquette. EMTA?s Evaluation of the Elastic Properties for Fiber Polymer Composites Potentially Used in Hydropower Systems. Office of Scientific and Technical Information (OSTI), August 2010. http://dx.doi.org/10.2172/992373.

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Dyck, Christopher, Cody M. Washburn, Michael N. Rector, Patrick Sean Finnegan, Kent B. Pfeifer, Beechem, Thomas Edwin,, Jill Blecke, Michael Randolph Satches, Lee Taylor Massey, and Christopher Dyck. Carbon Composite Microelectromechanical Systems (CMEMS). Office of Scientific and Technical Information (OSTI), February 2016. http://dx.doi.org/10.2172/1560994.

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