Bibliografie tematiche / Composites

Letteratura scientifica selezionata sul tema "Composites"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 7 luglio 2024

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Articoli di riviste sul tema "Composites"

1

Zhou, Hao, Qing Meng Zhang, Qun Tang, Hang Cui, Yao Hua Xu e Jun Du. "Effect of the Difference in Dielectric Constant of the Phases on Dielectric Property of the Composites". Materials Science Forum 814 (marzo 2015): 137–43. http://dx.doi.org/10.4028/www.scientific.net/msf.814.137.

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The composites have a great use in practical application. In common, the phases in composite have different relative dielectric constant and in order to reveal how the phases with different permittivity affect the composite’s dielectric properties, the experiments were carried out using inorganic and organic composite with different dielectric constant phases to make that clear. The barium niobate-based SiO2system glass–ceramic and fillers-epoxy resin composites were chosen, and the dielectric properties were tested to compare the difference of those composites. The results show that the existence of high dielectric constant phases in composites can improve the permittivity of composites and make the composites present ferroelectric properties, while the dielectric loss can also increased, and the difference in dielectric constant of the phases can decrease the dielectric breakdown strength.
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2

Kobayashi, Junya, Masahiro Kaneko, Chamaiporn Supachettapun, Kenji Takada, Tatsuo Kaneko, Joon Yang Kim, Minori Ishida, Mika Kawai e Tetsu Mitsumata. "Mechanical Properties and Reinforcement of Paper Sheets Composited with Carboxymethyl Cellulose". Polymers 16, n. 1 (26 dicembre 2023): 80. http://dx.doi.org/10.3390/polym16010080.

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The mechanical properties for paper sheets composited with glucose (Glc), methyl cellulose (MC), and carboxymethyl cellulose (CMC) were investigated. The paper composites were prepared by immersing paper sheets in aqueous solutions of these materials and drying at 100 °C for 30 min. The stress–strain curves for these paper composites were measured by a uniaxial tensile apparatus with a stretching speed of 2 mm/min. The breaking stress and strain for untreated paper were 24 MPa and 0.016, respectively. The paper composites demonstrated stress–strain curves similar to the untreated paper; however, the breaking point largely differed for these composites. The breaking strain and breaking stress for the Glc composite slightly decreased and those for the MC composite gradually increased with the concentration of materials composited. Significant increases in the mechanical properties were observed for the CMC composite. The breaking stress, breaking strain, and breaking energy for the 3 wt.% CMC composite were 2.0-, 3.9-, and 8.0-fold higher than those for untreated paper, respectively. SEM photographs indicated that the CMC penetrated into the inner part of the paper. These results strongly suggest that the mechanical improvement for CMC composites can be understood as an enhancement of the bond strength between the paper fibrils by CMC, which acts as a bonding agent. It was also revealed that the breaking strain, breaking stress, and breaking energy for the CMC composites were at maximum at the first cycle and decreased gradually as the immersion cycles increased.
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3

Vedanarayanan, V., B. S. Praveen Kumar, M. S. Karuna, A. Jayanthi, K. V. Pradeep Kumar, A. Radha, G. Ramkumar e David Christopher. "Experimental Investigation on Mechanical Behaviour of Kevlar and Ramie Fibre Reinforced Epoxy Composites". Journal of Nanomaterials 2022 (2 febbraio 2022): 1–10. http://dx.doi.org/10.1155/2022/8802222.

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Abstract (sommario):
Natural fibre composites have been replacing synthetic fibre composites in practical applications for the last several years because of the features such as low densities, low weight, relatively inexpensive, recyclability, and excellent mechanical qualities unique to the substance. Thus, the current study examines how Kevlar/Ramie/Nano SiC hybrid fibre reinforced composites are made and their mechanical properties, and it compares them to those made using a single natural fibre reinforced composite. It was found that natural fibre composite densities and hardness were all within acceptable ranges by performing composites’ tensile and flexural strength tests. The hand-lay-up technique used ASTM standards samples to construct the composite specimens with various fibre weight percentages. Increase in mechanical characteristics was achieved by adding the glass and the epoxy fibres into the epoxy matrix. The hybrid composite’s performance is promising, especially those of individual fibre-reinforced composites.
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4

Kala, Shiva Kumar, e Chennakesava Reddy Alavala. "Enhancement of Mechanical and Wear Behavior of ABS/Teflon Composites". Trends in Sciences 19, n. 9 (8 aprile 2022): 3670. http://dx.doi.org/10.48048/tis.2022.3670.

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Abstract (sommario):
In the present investigations, Most of the engineering applications of metallic materials are replaced by polymeric based composite materials. Because of the low cost and accessible handling of polymer composite materials such as Acrylonitrile butadiene styrene (ABS) matrix materials are used to make the composites with additions of filler enhance the properties of the matrix materials. In the present study, ABS matrix material is used to make the composite materials by adding the Teflon materials. Investigations are carried out to find the enhancement of the composites' mechanical properties. Optimizing the process parameters is done to identify the composite's most optimum used to get composite with better mechanical properties. SEM analysis and wear Debris are investigated to study the microscopic surface nature and behavior of the composites.
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5

Skaria, Sunny, e Kenneth J. Berk. "Experimental Dental Composites Containing a Novel Methacrylate-Functionalized Calcium Phosphate Component: Evaluation of Bioactivity and Physical Properties". Polymers 13, n. 13 (25 giugno 2021): 2095. http://dx.doi.org/10.3390/polym13132095.

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The aim of this study was to synthesize and characterize a novel methacrylate-functionalized calcium phosphate (MCP) to be used as a bioactive compound for innovative dental composites. The characterization was accomplished by attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The incorporation of MCP as a bioactive filler in esthetic dental composite formulations and the ability of MCP containing dental composites to promote the precipitation of hydroxyapatite (HAp) on the surfaces of those dental composites was explored. The translucency parameter, depth of cure, degree of conversion, ion release profile, and other physical properties of the composites were studied with respect to the amount of MCP added to the composites. Composite with 3 wt.% MCP showed the highest flexural strength and translucency compared to the control composite and composites with 6 wt.% and 20 wt.% MCP. The progress of the surface precipitation of hydroxyapatite on the MCP containing dental composites was studied by systematically increasing the MCP content in the composite and the time of specimen storage in Dulbecco’s phosphate-buffered solution with calcium and magnesium. The results suggested that good bioactivity properties are exhibited by MCP containing composites. A direct correlation between the percentage of MCP in a composite formulation, the amount of time the specimen was stored in PBS, and the deposition of hydroxyapatite on the composite’s surface was observed.
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6

Gopalan, Venkatachalam, Mugatha Surya Vardhan, Vishal Thakur, Annamalai Krishnamoorthy, Vignesh Pragasam, Mallikarjuna Reddy Degalahal, Pitchumani Shenbaga Velu, A. Raja Annamalai e Chun-Ping Jen. "Studies on Numerical Buckling Analysis of Cellulose Microfibrils Reinforced Polymer Composites". Materials 16, n. 3 (17 gennaio 2023): 894. http://dx.doi.org/10.3390/ma16030894.

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Scientists are drawn to the new green composites because they may demonstrate qualities that are comparable to those of composites made of synthetic fibers due to concerns about environmental contamination. In this work, the potential for using the produced green composite in different buckling load-bearing structural applications is explored. The work on composite buckling characteristics is vital because one needs to know the composite’s structural stability since buckling leads to structural instability. The buckling properties of composite specimens with epoxy as the matrix and chemically treated cellulose microfibrils as reinforcements are examined numerically in this study when exposed to axial compressive stress. The numerical model is first created based on the finite element method model. Its validity is checked using ANSYS software by contrasting the critical buckling loads determined through research for three samples. The numerical findings acquired using the finite element method are then contrasted with those produced using the regression equation derived from the ANOVA. The utilization of the created green composite in different buckling load-bearing structural applications is investigated in this study. As a result of the green composite’s unaltered buckling properties compared to synthetic composites, it has the potential to replace numerous synthetic composites, improving environmental sustainability.
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7

Sari, Nasmi Herlina, Suteja Suteja e Yusuf Akhyar Sutaryono. "The Mechanical Properties of a Water Hyacinth/Rice Husk Powders Composite for Tissue Engineering Applications". Journal of Fibers and Polymer Composites 2, n. 2 (30 ottobre 2023): 145–56. http://dx.doi.org/10.55043/jfpc.v2i2.123.

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In this study, composites made from water hyacinth powder (WPH) and rice husk powder (RH) were created using the hot press method, and the composites were characterized to determine their suitability for biomedical applications such as tissue engineering. The mixing ratio of WPH/RH was investigated. Fourier transmission infrared spectroscopy (FTIR) revealed the presence of chemical bonds in the composites under investigation. Tensile tests were used to investigate the mechanical properties of the composite, which revealed that adding water WPH to the rice husk composite reduced the composite's strength. A composite with a 5% WPH content had the highest tensile strength of 32.72 MPa. Meanwhile, the mechanical strength of the other composites studied ranged from 25,537 MPa to 29.43 MPa. However, the elastic modulus of the composite increased with the addition of WPH. The SEM image shows that the powder distribution is less even, the interface between WPH-RH and polyester is quite tight, and the composite contains a number of voids. Characterization of the developed composite demonstrates that the WPH/RH addition ratio can be adjusted to achieve the desired composite properties for tissue engineering and cartilage regeneration applications.
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Prakoso, Medhi Wiratama, Dina Nikmatul Baroroh e Keagisitswe Setswalo. "Water Absorption Rate of Kenaf Fiber (KF)/ Hydroxiteapatite (HA) in Simulated Sea Water". Mechanics Exploration and Material Innovation 1, n. 1 (31 gennaio 2024): 35–41. http://dx.doi.org/10.21776/ub.memi.2024.001.01.5.

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Hydroxiteapatie (HA) as a filler is a mixture that is often added to alloy or composite products. This study investigates the development of polyester composites reinforced with kenaf fiber (KF) and hydroxiteapatite (HA) fillers in order to reduce their environmental impact. The strength, decomposability, and low weight of these composites make them ideal for a wide range of applications due to their exceptional mechanical properties. In addition to tensile and bending tests, water absorption tests, and immersion in seawater simulations, the composites were evaluated under demanding conditions. The water absorption rate increased with increasing fiber volume percentages in the composite, primarily due to the water-absorbing properties of the KF and HA particles. In contrast, the KF-15%HA-reinforced composite, which underwent soaking at 50 °C, exhibited the lowest tensile strength of the three composites. Additionally, the temperature at which aging occurs influences the composite's ability to absorb water and its mechanical properties. A filler may improve the mechanical properties of composites made from kenaf fibers, and it can also affect moisture absorption, reducing moisture absorption and increasing adhesion.
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Wang, Yuxuan, Min Wang, Weichao Zhang e Chunxia He. "Performance comparison of different plant fiber/soybean protein adhesive composites". BioResources 12, n. 4 (6 ottobre 2017): 8813–26. http://dx.doi.org/10.15376/biores.12.4.8813-8826.

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Abstract (sommario):
To compare the properties of different plant fiber/soybean protein adhesive composites, six types of plant fibers (rice straw, wheat straw, peanut straw, rice husk, wheat husk, and peanut shell) were selected as reinforced materials, and soybean protein adhesive was used as the adhesive. Six types of different bio-composites were prepared by the compression molding process. The Fourier transform infrared (FTIR) spectra, mechanical properties, moisture absorption, and thermal stability of the composites were measured. The tensile cross-section microstructure of the composites was examined. Results showed that the peanut straw/soybean protein adhesive composite contained more hydrophilic groups. The wheat fiber-based composites possessed more hydrogen bonds, leading to the best binding interface compatibility and mechanical properties. The wheat straw/soybean protein adhesive composite had the highest tensile strength, flexural strength, and impact strength, which were 337.7%, 638.6%, and 483.4%, compared to those of the rice husk/soybean protein adhesive composite, respectively. The peanut shell/soybean protein adhesive composite’s equilibrium moisture content was the lowest (8.70%). The rice husk/soybean protein adhesive composite had the highest equilibrium moisture content (14.23%), and the best thermal stability as the initial temperature of pyrolysis was 283.4 °C and the residual mass was 34.45%.
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Wang, Jing, Ying Bin Cao, Dong Lin, Rong Jun Liu e Chang Rui Zhang. "Effect of Infiltration Temperature on the Composition and Mechanical Property of RMI C/C-SiC Composite". Materials Science Forum 816 (aprile 2015): 71–77. http://dx.doi.org/10.4028/www.scientific.net/msf.816.71.

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C/C-SiC composites were prepared by reactive melt infiltration process at different temperatures. The composition, microstructures and mechanical properties of the composites were investigated. The results showed that infiltration temperature could affect composite’s properties through regulating the chemical composition and interfacial bonding strength of the composites. The C/C-SiC composite prepared at 1650°C exhibited the relatively highest performance with density of 2.24 g·cm-3 and SiC content of 31.44 vol.%. The flexural strength and the fracture toughness were 238MPa and 10.04 MPa·m1/2, respectively.
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Tesi sul tema "Composites"

1

Thanomsilp, Chuleeporn. "Toughening composites for liquid composite moulding". Thesis, Queen Mary, University of London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390838.

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Mahmoud, Bassam. "Modélisation d'impacts sur des stratifiés composites unidirectionnels et hybrides". Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30212.

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Abstract (sommario):
Les structures aéronautiques sont aujourd’hui largement réalisées à partir de matériaux composites, permettant ainsi d’en diminuer la masse. L’impact sur structure composite est une des sources de dommage la plus courante et la plus pénalisante. L’objectif de cette thèse est de développer un modèle prédictif d’impact sur stratifiés unidirectionnels de faible épaisseur afin, dans un premier temps, de mieux comprendre les mécanismes d’endommagement mis en jeu et, dans un deuxième temps, de pouvoir proposer des pistes d’amélioration de la tenue de ces structures. La première étape de ces travaux a consisté à développer un modèle éléments finis explicite de stratifiés composite unidirectionnel, en s’appuyant sur les travaux d’impact sur pale d’hélicoptère réalisés par F. Pascal. Ainsi, un nouvel élément capable de représenter le comportement à l’impact des plis unidirectionnels a été formulé. Le comportement des paquets de fibres est représenté par des éléments barres stabilisés grâce à des éléments 2D spécifiques. La dégradation de ces éléments est pilotée par des lois d’endommagement déduites d’observations expérimentales. La stratégie de modélisation proposée a été identifiée sur la base d’essais expérimentaux pour deux matériaux : T700/M21 et HTA7/913. Les résultats donnés par le modèle ont ensuite été validés par une comparaison avec des essais d’impact à basse vitesse. Enfin, dans le but d’optimiser la tenue des stratifiés, des impacts à basse et moyenne vitesse sur des stratifiés hybrides unidirectionnels/tissus composites ont été étudiés expérimentalement et numériquement grâce à la stratégie de modélisation proposée
Today, composite materials are largely used in the manufacturing of aeronautical structures, in order to lighten their weight. Impact on composite structures is one of the most detrimental loading. The present study aims to develop a predictive modelling of impacts on thin unidirectional laminates in order to, firstly, better understand the damage mechanisms involved, and, secondly, be able to provide guidance for a strength improvement of these structures. First, an explicit finite element modelling of unidirectional laminates is developed based on the work of F Pascal dealing with impact modeling on helicopter blades. Thus, a new element that can represent the impact response of unidirectional plies is formulated. The behavior of the bundle of fibers is modeled with rod elements stabilized with specific 2D elements. The degradation is managed using damage based on experimental observations. The parameters of the proposed modelling strategy are identified on the basis of experimental tests carried out on T700/M21 and HTA7/913 composites. The results provided by the modeling are then validated by a comparison with experimental low velocity impact results. Finally, in order to improve the laminate strength, low velocity and medium velocity impacts on hybrid unidirectional/woven composite laminates are studied experimentally and with the developed modelling strategy
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Vogler, Tracy John. "On the failure and post-failure of fiber composites in compression /". Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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4

Wu, Xiang. "Thermoforming continuous fiber reinforced thermoplastic composites". Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/9383.

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5

Christen, Jean-Loup. "Acoustic transmission through composite shells with noise treatment : Modelling and sensitivity". Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEC028.

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Abstract (sommario):
La transmission acoustique de plaques et de coques est un problème présent dans de nombreuses industries, de l'automobile à l'aéronautique en passant par le génie civil. Il s'agit alors, en présence d'une source externe, de limiter le niveau de bruit à l'intérieur d'une cavité enclose par une structure vibrante, qu'il s'agisse d'une voiture, d'un avion ou d'un immeuble.Les matériaux composites sont de plus en plus largement utilisés par toutes les industries du transport, du fait de leur faible masse rapportée à leur grande rigidité. Ces caractéristiques, utiles pour réduire la consommation énergétique des véhicules, sont cependant un handicap lorsqu'il s'agit de limiter le niveau de bruit intérieur. Il est alors nécessaire d'ajouter des protections acoustiques. On s'intéresse dans ce travail à la transmission d'un bruit produit à l'extérieur de la cavité, et à des solutions antibruit passives, utilisant des matériaux poreux absorbants. Ceux-ci, mousses ou laines minérales, présentent en général de bonnes performances acoustiques pour des fréquences élevées, mais nettement mois intéressantes en basses fréquences. Ce travail s'inscrit dans le cadre d'un projet international ayant pour objectif d'étudier la réduction de bruit à travers des structures composites incluant des protections acoustiques passives. Deux axes y sont privilégiés, la modélisation et l'analyse de sensibilité. En effet, les matériaux poreux et composites présentent souvent de grandes incertitudes, dues au procédé de fabrication, à la difficulté de mesure, ou encore simplement à des choix de conception à faire. On cherche donc à s'assurer de la robustesse des solutions étudiées.Cette thèse est organisée en trois parties. La première traite de la modélisation des structures composites et des traitements poroélastiques. On s'intéresse surtout à deux types de structures, les plaques et les cylindres, pouvant dans les deux cas inclure un grand nombre de couches et de matériaux différents. La deuxième partie traite des méthodes d'analyse de sensibilité, et d'applications dans le cas de la transmission acoustique à travers des structures composites. On s'intéressera enfin dans la troisième partie à l'effet du traitement poroélastique, à travers des études numériques et expérimentales
Acoustic transmission through plates and shells is a problem that appear in many applications, for example in the automotive or aerospace industries, or in civil engineering. The idea is to reduce the noise level inside a caivty enclosed by a vibrating structure, which may be a car, a plane or a building. Composite materials are widely used in the transportation industries due to their light weight and high mechanic resistance, but these features tend to increase the acoustic transparency of the structures, thus making it necessary to add acoustic protections for reducing noise in the enclosed cavity. The most frequently used acoustic protections take the form of layers of poroelastic materials, which are very efficient noise absorbers in high frequencies, but perform less efficiently in lower frequency ranges.This thesis is part of an international project aimed at improving the noise reduction performance of composite structures through passive sound packages. This implies the development of reduced models of acoustic transmission through such structures, and optimization studies on these models. Besides, the robustness of a solution with respect to uncertainties in the model have to be ensured. This thesis is organised in three parts, dealing with numerical modelling, sensitivity analysis for acoustic transmission and the effect of a porous treatment on sound transmission
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Hsu, Sheng-yuan. "On the prediction of compressive strength and propagation stress of aligned fiber-matrix composites /". Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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Podnos, Eugene Grigorievich. "Application of fictitious domain method to analysis of composite materials /". Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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8

Ellerby, Donald Thomas. "Processing and mechanical properties of metal-ceramic composites with controlled microstructure formed by reactive metal penetration /". Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/10583.

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Cheung, Yin Nee. "Investigation of concrete components with a pseudo-ductile layer /". View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202004%20CHEUNGY.

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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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Libri sul tema "Composites"

1

author, Gupta A. C., a cura di. Polymer composites. London: New Academic Science, 2019.

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2

(Firm), Knovel, a cura di. Composite materials handbook: Metal matrix composites. [Washington, D.C.?]: U.S. Department of Defense, 2002.

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3

M, Tarnopolʹskiĭ I͡U. Spatially reinforced composites. Lancaster, Pa., U.S.A: Technomic Pub. Co., 1992.

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4

International, ASM, a cura di. Advanced polymer composites. Materials Park, OH: ASM International, 1994.

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5

J, Reinhart Theodore, Dostal Cyril A e ASM Handbook Committee., a cura di. Composites. Metals Park, Ohio: ASM International, 1987.

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6

Piggott, Michael R. Load bearing fibre composites. 2a ed. Boston: Kluwer Academic, 2002.

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7

1939-, Vigo Tyrone L., e Kinzig Barbara J, a cura di. Composite applications: The role of matrix, fiber, and interface. New York, N.Y: VCH, 1992.

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8

American Society of Civil Engineers. Materials Engineering Division. Journal of composites for construction. New York, NY: American Society of Civil Engineers, 1997.

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9

George, Lubin, e Peters S. T, a cura di. Handbook of composites. 2a ed. London: Chapman & Hall, 1998.

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10

Niska, Kristiina Oksman, e Mohini Sain. Wood-polymer composites. Cambridge, U.K: Woodhead Publishing Ltd., 2008.

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Capitoli di libri sul tema "Composites"

1

Ghosh, Subrata Bandhu, Sanchita Bandyopadhyay-Ghosh e Mohini Sain. "Composites". In Poly(Lactic Acid), 293–310. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470649848.ch18.

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Hänninen, Tuomas, Mark Hughes, Erwin Baur, Frank Otremba, Tim Huber, Nina Graupner, Jürg Müssig et al. "Composites". In Industrial Applications of Natural Fibres, 381–480. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470660324.ch19.

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Wesolowski, Robert A., Anthony P. Wesolowski e Roumiana S. Petrova. "Composites". In The World of Materials, 125–29. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-17847-5_16.

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Eisenbach, Iris. "Composites". In English for Materials Science and Engineering, 63–72. Wiesbaden: Vieweg+Teubner, 2011. http://dx.doi.org/10.1007/978-3-8348-9955-2_6.

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Taylor, John G. "Composites". In Phenolic Resins: A Century of Progress, 263–306. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-04714-5_12.

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Tenek, Lazarus Teneketzis, e John Argyris. "Composites". In Solid Mechanics and Its Applications, 37–46. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-015-9044-0_4.

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Sprenger, H. J., J. Pötschke, C. Potard e V. Rogge. "Composites". In Fluid Sciences and Materials Science in Space, 567–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-46613-7_16.

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Sciore, Edward. "Composites". In Java Program Design, 315–51. Berkeley, CA: Apress, 2018. http://dx.doi.org/10.1007/978-1-4842-4143-1_9.

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Aakeröy, C. B., N. Azoz, P. D. Calvert, M. Kadim, A. J. McCaffery e K. R. Seddon. "Composites". In ACS Symposium Series, 516–27. Washington, DC: American Chemical Society, 1991. http://dx.doi.org/10.1021/bk-1991-0455.ch034.

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Pero-Sanz Elorz, José Antonio, Daniel Fernández González e Luis Felipe Verdeja. "Composites". In Structural Materials, 163–91. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-26161-0_6.

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Atti di convegni sul tema "Composites"

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Margraf, Jr., Thomas W., Thomas J. Barnell, Ernie Havens e Christopher D. Hemmelgarn. "Reflexive composites: self-healing composite structures". In The 15th International Symposium on: Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, a cura di Masayoshi Tomizuka. SPIE, 2008. http://dx.doi.org/10.1117/12.776284.

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Dinesh, A. "Development of Self-Sensing Cement Composite Using Nanomaterials for Structural Health Monitoring of Concrete Columns – A Comprehensive Review". In Sustainable Materials and Smart Practices. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901953-23.

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Abstract. Due to age, structural deterioration, and other factors, concrete constructions such as beams and columns will inevitably deteriorate. The growth of nanomaterials and recent advances in multidisciplinary research has broadened cement composites' applicability in various fields. A self-sensing cement composite can detect its own deformation, strain, and stress by changing its electrical characteristics, which may be measured with electrical resistivity. Carbon-based nanomaterials, such as carbon fiber, carbon black, and carbon nanotube, have a strong potential to increase cement composite's mechanical (strength) and electrical (resistivity, sensitivity) potentials due to their remarkable strength and conductivity. Due to the artificial integration of conductive carbon-based components will generate piezoresistive properties in typical cement composites, transforming them into self-sensing cement composites. As a result, the review focuses primarily on the development of nanoparticle-based self-sensing cement composites and their use in the health monitoring of structural columns. This research critically examines the materials used, fabrication techniques, strength, and sensing methodologies used to develop the self-sensing cement composite. The difficulties of commercializing self-sensing cement composites, as well as potential solutions, are also highlighted. According to the review, the difference in Poisson ratio and youngs modulus between the self-sensing cement composite and columns leads the self-sensing cement composite to have different strength and conductivity before and after embedding in columns. According to the study, the addition of conductive material diminishes the composite's workability due to its large specific surface area. Because of the well-distributed conductive network, the composite's resistivity is significantly lowered. The study also shows that the inclusion of a self-sensing cement composite has no bearing capacity influence on the column. Finally, according to the review, the self-sensing cement composite has the ability to monitor the health of structural columns.
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ENAB, WALAA, STEVEN KEY e PHILIP BRADFORD. "EFFECTIVE TRANSVERSE REINFORCEMENT OF UNIDIRECTIONAL THIN PREPREG COMPOSITES USING VERTICALLY ALIGNED CARBON NANOTUBES". In Proceedings for the American Society for Composites-Thirty Seventh Technical Conference. Destech Publications, Inc., 2022. http://dx.doi.org/10.12783/asc37/36379.

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In this paper, we investigate the use of vertically aligned carbon nano tubes (VACNTs) in laminated composites across nearby plies for developing advanced composites to improve the transverse mechanical properties of the composite. VACNTs introduced into the interlaminar area by manually printing aligned carbon nanotubes onto the surface of the composite prepreg plies. The transverse tensile test is utilized to determine the improvement in transverse mechanical properties. The results shows that the transverse tensile improved by 31.6 %. This approach demonstrates extremely promising outcomes in terms of improving the composite's transverse strength.
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FENG, HAOTIAN, SSABARINATHAN P. SUBRAMANIYAN e PAVANA PRABHAKAR. "DEEP LEARNING FRAMEWORK FOR WOVEN COMPOSITE DESIGN AND OPTIMIZATION". In Proceedings for the American Society for Composites-Thirty Seventh Technical Conference. Destech Publications, Inc., 2022. http://dx.doi.org/10.12783/asc37/36415.

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Woven composites are produced by interlacing warp and weft fibers in a pattern or weave style. By changing the pattern or material, the mechanical properties of woven composites can be significantly changed. However, how a woven composite’s architecture (pattern, material) is related to its mechanical properties is still unclear. Thus, in this paper, we utilize Deep Neural Network to explore the relationship between 2D woven composite architectures and their corresponding mechanical properties. We propose Deep Convolutional Neural Network to predict in-plane modulus from a given weave pattern and material sequence. More importantly, we propose a Physics-Constrained Neural Network to predict woven composite architecture from in-plane modulus, which is an extremely complex problem. The results demonstrate that our proposed Deep Neural Network frameworks can effectively represent the relationships between woven composite architecture and corresponding in-plane modulus with much higher accuracy compared to existing frameworks. We anticipate our proposed frameworks will not only facilitate woven composite analysis and optimization process but also be a starting point to introduce Physics knowledge guided Neural Networks into woven composite analysis.
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Hakansson, M. "Use of Carbon Fibre in High Speed Passenger Ferries". In Marine & Offshore Composites. RINA, 2010. http://dx.doi.org/10.3940/rina.moc10cd.2010.02.

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Kennedy, S. J., A. Martino, M. A. Brooking, Y. Heo, M. S. Kim e H. Ocakli. "Development of Design Equations for Steel Sandwich Panel Construction". In Marine & Offshore Composites. RINA, 2010. http://dx.doi.org/10.3940/rina.moc10cd.2010.06.

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Sobey, A. J., J. I. R. Blake, R. A. Shenoi e A. Waddams. "Concurrent Engineering Principles Applied to Marine Composite Structures for Reduction In Production Costs Through Robust Design". In Marine & Offshore Composites. RINA, 2010. http://dx.doi.org/10.3940/rina.moc10cd.2010.09.

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De Fenzo, A., C. Formicola, V. Antonucci, M. Zarrelli e M. Giordano. "Effects of Zinc-Based Compound on Degradation Behaviour and Smoke Production of Epoxy Matrix". In Marine & Offshore Composites. RINA, 2010. http://dx.doi.org/10.3940/rina.moc10cd.2010.05.

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Weitzenbock, J., D. McGeorge, G. Hersvik, B. Hayman, P. Noury, D. M. Hill e A. Echtermeyer. "Application of Composites in Ships and Offshore – A Review and Outlook". In Marine & Offshore Composites. RINA, 2010. http://dx.doi.org/10.3940/rina.moc10cd.2010.01.

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Summerscales, J. "A Taxonomy for Resin Infusion Processes". In Marine & Offshore Composites. RINA, 2010. http://dx.doi.org/10.3940/rina.moc10cd.2010.03.

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Rapporti di organizzazioni sul tema "Composites"

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McCullough, Roy L., e Diane S. Kukich. Composites 2000: An International Symposium on Composite Materials. Fort Belvoir, VA: Defense Technical Information Center, giugno 2000. http://dx.doi.org/10.21236/ada384778.

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Barnes, Eftihia, Jennifer Jefcoat, Erik Alberts, Hannah Peel, L. Mimum, J, Buchanan, Xin Guan et al. Synthesis and characterization of biological nanomaterial/poly(vinylidene fluoride) composites. Engineer Research and Development Center (U.S.), settembre 2021. http://dx.doi.org/10.21079/11681/42132.

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The properties of composite materials are strongly influenced by both the physical and chemical properties of their individual constituents, as well as the interactions between them. For nanocomposites, the incorporation of nano-sized dopants inside a host material matrix can lead to significant improvements in mechanical strength, toughness, thermal or electrical conductivity, etc. In this work, the effect of cellulose nanofibrils on the structure and mechanical properties of cellulose nanofibril poly(vinylidene fluoride) (PVDF) composite films was investigated. Cellulose is one of the most abundant organic polymers with superior mechanical properties and readily functionalized surfaces. Under the current processing conditions, cellulose nanofibrils, as-received and 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) oxidized, alter the crystallinity and mechanical properties of the composite films while not inducing a crystalline phase transformation on the 𝛾 phase PVDF composites. Composite films obtained from hydrated cellulose nanofibrils remain in a majority 𝛾 phase, but also exhibit a small, yet detectable fraction of 𝛼 and ß PVDF phases.
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Keijsers, E. R. P. Bamboo composites. Wageningen: Wageningen Food & Biobased Research, 2020. http://dx.doi.org/10.18174/530197.

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Nemat-Nasser, Sia. Healable Composites. Fort Belvoir, VA: Defense Technical Information Center, marzo 2012. http://dx.doi.org/10.21236/ada577758.

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DeTeresa, S. J., S. E. Groves e R. J. Sanchez. Advanced composites technology. Office of Scientific and Technical Information (OSTI), ottobre 1998. http://dx.doi.org/10.2172/2645.

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Chattopadhyay, Aditi. Damage Precursor Detection in Polymer Matrix Composites Using Novel Smart Composite Particles. Fort Belvoir, VA: Defense Technical Information Center, settembre 2016. http://dx.doi.org/10.21236/ad1018261.

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Zhu, Y. T., J. A. Valdez, I. J. Beyerlain, M. G. Stout, S. Zhou, N. Shi e T. C. Lowe. Innovative Composites Through Reinforcement Morphology Design - a Bone-Shaped-Short-Fiber Composite. Office of Scientific and Technical Information (OSTI), giugno 1999. http://dx.doi.org/10.2172/763899.

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Taya, Minoru, Onur C. Namli e Tucker Howie. Design of Active Composites. Fort Belvoir, VA: Defense Technical Information Center, marzo 2009. http://dx.doi.org/10.21236/ada502837.

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Gabrielson, Thomas B. 1-3 Composites Study. Fort Belvoir, VA: Defense Technical Information Center, agosto 2003. http://dx.doi.org/10.21236/ada430557.

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Dvorak, George J. Plasticity of Fibrous Composites. Fort Belvoir, VA: Defense Technical Information Center, maggio 1987. http://dx.doi.org/10.21236/ada184637.

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