Gotowe bibliografie tematyczne / Fiber reinforced elastomer

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Gotowa bibliografia na temat „Fiber reinforced elastomer”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 7 września 2023

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Artykuły w czasopismach na temat "Fiber reinforced elastomer"

Semar, Jan Eric, i David May. "Textile-Integrated Elastomer Surface for Fiber Reinforced Composites". Key Engineering Materials 809 (czerwiec 2019): 53–58. http://dx.doi.org/10.4028/www.scientific.net/kem.809.53.

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Elastomer layers offer a wide range of surface functionalization options for fiber-reinforced polymer composites (FRPC), e.g. erosion protection or increased impact resistance. Goal of this study was to investigate if it is possible to prepare a textile-based semi-finished product with elastomeric surface, which can easily be used as outermost layer in different liquid composite molding (LCM) processes. For this purpose, different types of elastomer were pressed and vulcanized onto a biaxial glass fiber fabric. Target of this procedure was to reach partial immersion of the elastomer into the textile with remaining dry textile areas. The dry areas of the textile can later be impregnated with a thermoset resin system. The strategy is to have the transition region between elastomer and thermoset within one textile layer and to give a robust and easy to handle semi-finished-product in order to achieve a maximum bonding strength of the elastomer surface to the final composite part. It could be shown by micrographs and computer tomography that the elastomer only penetrates the textile at its boundary. A remarkable microimpregnation of individual filaments within the rovings does not take place. Concerning the manufacturing, since water evaporates during vulcanization, a sufficient process pressure must be maintained throughout the entire vulcanization process to ensure a pore-free elastomer. Peel-off tests similar to DIN EN 28510-1 on the finished composite showed a failure in the laminate and not in the boundary layer between laminate and elastomer, so that the desired high joint strength could be demonstrated.

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Hintze, C., M. Shirazi, S. Wiessner, A. G. Talma, G. Heinrich i J. W. M. Noordermeer. "INFLUENCE OF FIBER TYPE AND COATING ON THE COMPOSITE PROPERTIES OF EPDM COMPOUNDS REINFORCED WITH SHORT ARAMID FIBERS". Rubber Chemistry and Technology 86, nr 4 (1.12.2013): 579–90. http://dx.doi.org/10.5254/rct.13.87977.

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ABSTRACT There is a renewed interest in the application of short aramid fibers in elastomers because of the considerable improvement in mechanical and dynamic properties of the corresponding rubber composites. Possible applications of short aramid fiber–reinforced elastomers are tires, dynamically loaded rubber seals, diaphragms, engine mounts, transmission belts, conveyer belts, and hoses. Our studies are related to the investigation of dispersion, length distribution, and the fiber–matrix interaction of two types of short aramid fibers, standard coated and resorcinol formaldehyde latex (RFL) coated, in ethylene–propylene–diene rubber (EPDM). Because the detection of the polymer fiber morphology in rubber compounds is hampered in the presence of carbon black, which is typically used in industrial elastomer compounds, fiber length, fiber length distribution, and dispersion are investigated in corresponding carbon black–free model compounds. Optical methods, scanning electron microscopy, and tensile testing are employed to explore the short aramid fiber–reinforced elastomer composites. The effects of morphology and fiber–matrix interaction on the mechanical properties of composites are discussed. Regarding fiber type, it is shown that co-poly-(paraphenylene/3,4′-oxydiphenylene terephthalamide) (PP/ODPTA) fibers end up with a higher final length than does poly(para-phenylene terephtalamide) (PPTA), which results in considerably higher mechanical properties of corresponding rubber compounds. For each fiber type, the higher final length as a result of RFL coating and the interaction with the rubber matrix are the key factors that overcome even the negative effect of poorer dispersion of RFL-coated fibers. The differences between the short aramid fibers and aramid cords regarding the RFL coating are also discussed.

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Ngo, Van Thuyet. "Effect of shear modulus on the performance of prototype un-bonded fiber reinforced elastomeric isolators". Journal of Science and Technology in Civil Engineering (STCE) - NUCE 12, nr 5 (30.08.2018): 10–19. http://dx.doi.org/10.31814/stce.nuce2018-12(5)-02.

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Un-bonded fiber reinforced elastomeric isolator (U-FREI) is light weight and facilitates easier installation in comparison to conventional steel reinforced elastomeric isolators (SREI), in which fiber layers are used as reinforcement to replace steel shims as are normally used in conventional isolators. Shear modulus of elastomer has significant influence on the force-displacement relationship of U-FREI. However, a few studies investigated the effect of shear modulus on the horizontal behavior of prototype U-FREI in literature. In this study, effect of shear modulus on performance of prototype U-FREIs is investigated by both experiment and finite element (FE) analysis. It is observed that reduction in horizontal stiffness of U-FREI with increasing horizontal displacement is due to both rollover deformation (or reduction in contact area of isolator with supports) and shear modulus of elastomer. Reasonable agreement is observed between the findings from experiment and FE analysis. Keywords: base isolator; prototype un-bonded fiber reinforced elastomeric isolator; rollover deformation; shear modulus; cyclic test.

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Huang, Hao, Chee-Ryong Joe, Dong-Uk Kim, Jehyun Lee i Heekyu Choi. "A study on fiber-reinforced elastomer with a biphasic loading behavior". Science and Engineering of Composite Materials 19, nr 4 (1.12.2012): 339–45. http://dx.doi.org/10.1515/secm-2012-0050.

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AbstractA specific fiber-reinforced elastomer (FRE) composite was formed by inserting curved fibers into a rubber matrix. This material combined the hyperelastic behavior of a soft elastomer matrix with the high stiffness character of a fibrous reinforcement. A biphasic loading property could be realized physically. Based on the guided concept, experiments were performed on the specimens of pure and fiber-reinforced silicone rubber, respectively. Test results showed that this FRE composite first experienced an elastomer-dominant phase with a large recoverable deformation and then a fiber-dominant phase with rapid increasing loading. This biphasic behavior of the developed FRE composite was also identified by the constitutive equations based on the nonlinear solid mechanics. It was further discovered that the division of the two phases could be varied with the change of curved fiber length.

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Stoll, Matthias, Franziska Stemmer, Sergej Ilinzeer i Kay André Weidenmann. "Optimization of Corrosive Properties of Carbon Fiber Reinforced Aluminum Laminates due to Integration of an Elastomer Interlayer". Key Engineering Materials 742 (lipiec 2017): 287–93. http://dx.doi.org/10.4028/www.scientific.net/kem.742.287.

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Fiber-Metal-Laminates (FML) show superior dynamic mechanical properties combined with low densities. The mechanical performance of for example commercially available fiber-metal-laminate, glass laminate aluminum reinforced epoxy, can be improved by the substitution of glass fibers with carbon fibers. However, carbon fiber reinforced aluminum laminate introduces a mismatch of coefficients of thermal expansion and the possibility of galvanic corrosion. The fiber-metal-laminate is altered by the integration of an elastomer interlayer which is desired to solve both problems. The high electrical resistance is supposed to inhibit the corrosion. This study focuses on the effect of galvanic corrosion caused by neutral salt spray tests on fiber-metal-laminates, the influence of an elastomer interlayer and the quantification of the residual mechanical properties. The galvanic corrosion affects the interfaces of the laminates, therefore in this study edge shear tests and flexural tests were carried out to quantify the residual properties and thereby the corrosive damage. The elastomer interlayer was found to inhibit galvanic corrosion in the salt spray chamber, whereas the fiber-metal-laminate without interlayer showed corrosive damage. Furthermore, the mechanical properties of the fiber-metal-laminate with elastomer interlayer remained constant after the corrosion tests, whilst the fiber-metal-laminate’s properties decreased with corrosive loads.

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Kopyrin, M. M., A. E. Markov, A. A. Dyakonov, А. G. Tuisov, А. А. Okhlopkova, A. K. Kychkin i N. N. Lazareva. "Investigation of butadiene-elastomer-based high modulus materials reinforced by basalt, glass, and carbon fabrics". Diagnostics, Resource and Mechanics of materials and structures, nr 3 (czerwiec 2022): 6–12. http://dx.doi.org/10.17804/2410-9908.2022.3.006-012.

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A relevant task in improving the properties of elastomers is to increase their strength and stiffness, which affect the reliability and durability of rubber products. The paper presents a technology for manufacturing high-modulus materials based on SKD-V butadiene rubber and reinforcing layers of fabrics from basalt, glass, and carbon fibers. The results of studying elastic strength properties reveal a significant increase in the ultimate strength of reinforced samples in comparison with an unmodified elastomer. The increase in tensile strength varies from 1.7 to 2.8 times. The addition of reinforcing layers reduced the elongation value by 25 to 47 times compared to rubber without reinforcement. High tensile strength and low elongation increase shear resistance. The wear resistance testing of elastomers coated with reinforcing fabrics shows a decrease in abrasion resistance reduced by a factor of 5.8. Abrasion wear and interaction between the reinforcing filler and the polymer are studied by electron microscopy. The study of the microstructure shows a weak contact between the fiber and the elastomeric matrix. Lack of contact during the abrasion process causes destruction of the fibers on the abrasive surface and their further separation. Due to the combination of high tensile strength and low elongation, the reinforced materials obtain high modulus properties combined with lateral mobility.

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Vleugels, N., W. K. Dierkes, A. Blume, L. A. E. M. Reuvekamp i J. W. M. Noordermeer. "MAIN GOVERNING FACTORS INFLUENCING MECHANICAL PROPERTIES OF SHORT-CUT ARAMID FIBER–REINFORCED ELASTOMERS". Rubber Chemistry and Technology 92, nr 3 (1.07.2019): 445–66. http://dx.doi.org/10.5254/rct.19.82593.

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ABSTRACT This study concerns short-cut aramid fiber reinforcement of synthetic elastomer compounds and their influence on the processability and mechanical properties. Short-fiber reinforcement of elastomers is very complex, because it depends on many mutually interacting factors: fiber concentration, fiber orientation distribution, fiber length and distribution, fiber-matrix interfacial strength, and properties of the matrix. The relationship between these influencing factors is highlighted in an S-SBR compound by design of experiments. Two 3 mm long aramid fibers were used: an epoxy-amine–coated fiber and a virgin fiber without coating. To potentially achieve a fiber–matrix interaction, the following silane coupling agents were employed: bis-(triethoxysilylpropyl)-disulfane (TESPD), bis-(triethoxysilylpropyl)-tetrasulfane (TESPT), S-3-(triethoxysilylpropyl)-octanethioate (NXT), and an alkylpolyether-mercapto-silane (Si 363), all in combination with the adhesion-activated aramid fibers and in comparison with the virgin fibers. They are compared on equimolar basis with regard to the amount of reactive ethoxy groups versus TESPD, making use of a “design of experiments” approach of the experimental setup. The outcome shows that, contrary to common assumptions, the effect of the fiber–matrix interaction is grossly overshadowed by the effects of other factors (i.e., fiber concentration and orientation) on the vulcanization system. For each mechanical property response, an optimization prediction is calculated and confirmed with an experimental run, showing, for example, a 330% potential improvement in the Young's modulus.

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Corrêa, R. A., R. C. R. Nunes i W. Z. Franco Filho. "Short fiber reinforced thermoplastic polyurethane elastomer composites". Polymer Composites 19, nr 2 (kwiecień 1998): 152–55. http://dx.doi.org/10.1002/pc.10086.

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Alshammari, Basheer A., Mohammed S. Alsuhybani, Alaa M. Almushaikeh, Bander M. Alotaibi, Asma M. Alenad, Naif B. Alqahtani i Abdullah G. Alharbi. "Comprehensive Review of the Properties and Modifications of Carbon Fiber-Reinforced Thermoplastic Composites". Polymers 13, nr 15 (27.07.2021): 2474. http://dx.doi.org/10.3390/polym13152474.

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Carbon fiber-reinforced polymers are considered a promising composite for many industrial applications including in the automation, renewable energy, and aerospace industries. They exhibit exceptional properties such as a high strength-to-weight ratio and high wear resistance and stiffness, which give them an advantage over other conventional materials such as metals. Various polymers can be used as matrices such as thermosetting, thermoplastic, and elastomers polymers. This comprehensive review focuses on carbon fiber-reinforced thermoplastic polymers due to the advantages of thermoplastic compared to thermosetting and elastomer polymers. These advantages include recyclability, ease of processability, flexibility, and shorter production time. The related properties such as strength, modulus, thermal conductivity, and stability, as well as electrical conductivity, are discussed in depth. Additionally, the modification techniques of the surface of carbon fiber, including the chemical and physical methods, are thoroughly explored. Overall, this review represents and summarizes the future prospective and research developments carried out on carbon fiber-reinforced thermoplastic polymers.

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Li, Chi, Yuhan Xie, Guorui Li, Xuxu Yang, Yongbin Jin i Tiefeng Li. "Electromechanical behavior of fiber-reinforced dielectric elastomer membrane". International Journal of Smart and Nano Materials 6, nr 2 (3.04.2015): 124–34. http://dx.doi.org/10.1080/19475411.2015.1061234.

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Rozprawy doktorskie na temat "Fiber reinforced elastomer"

Cherif, Chokri, Rico Hickmann, Andreas Nocke, Matthias Schäfer, Klaus Röbenack, Sven Wießner i Gerald Gerlach. "Development and testing of controlled adaptive fiber-reinforced elastomer composites". Sage, 2018. https://tud.qucosa.de/id/qucosa%3A35534.

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The integration of shape memory alloys (SMAs) into textile-reinforced composites produces a class of smart materials whose shape can be actively influenced. In this paper, Ni-Ti SMA wires are inserted during the weaving of a glass fiber reinforcement textile. This ‘‘active’’ reinforcement is then combined with an elastomeric matrix to produce a highly flexible composite sheet, which maintains high rigidity in the longitudinal direction. By activating the SMAs, high deflection ratios of up to 35% (relative to the component’s length) are achieved. To adjust the composite’s deflection to defined values, a closed-loop control is set up to adjust the current flow through the SMA wires. A control algorithm is designed and evaluated for several test cases. The high deformability and the controllable behavior show the high potential of these materials for applications such as aerodynamic flow control, automation and architecture.

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Giraldi, Andre Luis Ferrari de Moura. "Compositos hibridos de poli (tereftalato de etileno) (PET) / fibra de vidro (FV) / modificador de impacto (E-MA-GMA)". [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267212.

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Orientadores: Lucia Helena Innocentini Mei, Jose Alexandrino de Sousa
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica
Made available in DSpace on 2018-08-12T07:01:46Z (GMT). No. of bitstreams: 1 Giraldi_AndreLuisFerrarideMoura_D.pdf: 6788806 bytes, checksum: f1a0282da8520c3138e10549183d79b6 (MD5) Previous issue date: 2008
Resumo: Uma aplicação importante do poli (tereftalato de etileno) - PET - pós-consumo a ser considerada, e ainda pouco explorada, diz respeito ao seu reaproveitamento em outros setores diferentes, tais como o de compósitos híbridos de fibra de vidro (FV) com matriz polimérica e modificador de impacto, para aplicações diversas na área de engenharia. Deste modo, se fez necessário um estudo sistemático de compósitos de PET, reforçado com fibra de vidro e modificador de impacto para sua utilização numa aplicação de engenharia. E necessário que este apresente uma boa relação entre propriedades de rigidez e resistência ao impacto, e para isto dois sistemas de reforço foram propostos com dois tipos de fibra de vidro com diferentes tratamentos superficiais (FV 952 e 983). Ensaios de reometria de torque indicaram a reatividade entre os componentes PET e modificador de impacto. Os ensaios mecânicos demonstraram que o modulo elástico e a resistência a tração dos compósitos diminuem conforme se aumenta a concentração de E-MA-GMA em substituição ao PET na matriz. Entretanto, o modulo e a resistência ao impacto aumentaram da ordem de 300 % e 900% respectivamente para as concentrações de 30% de fibra de vidro (FV 952) e 20% de E-MA-GMA. O modulo de elasticidade e independente do tipo de tratamento superficial da fibra de vidro. A resistência a tração e a resistência ao impacto Izod dependem da natureza do tratamento de silano usado.
Abstract: An important application of poly(ethylene terephtalate) - PET - to be considered, and still not well explored, is its re-use in other different sectors, such as the obtaintion of PET composites reinforced with fibre glass (FG) and elastomer, for several applications in the engineering area. In this way, it is necessary a systematic study of several PET composites hybrids reinforced with fibre glass and impact elastomer to obtain a good balance between engineering properties such strength, rigidity ans impact resistance, two systems of reinforced were investigated using two types treatment of surface different (FG 952 and 983). Torque rheometry investigations during composite mixing indicated the reactivity between PET and elastomer. Mechanical tensile test on PET / fibre glass / elastomer composites hybrids indicated that the elastic modulus and tensile strength reduce monotonically as higher volume fractions of E-MA-GMA substitute PET in the composite matrix. Composites hybrids with 30 wt% of fibre glass (FG 952) and 20 wt% of elastomer indicates mechanical gains of the order of 300% in modulus e 900 % Izod impact. Tensile modulus is relatively independent of type of silane treatment applied to the glass fibers. Yield strength and Izod impact strength depend on the nature of silane treatment used.
Doutorado
Ciencia e Tecnologia de Materiais
Doutor em Engenharia Química

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Parker, Melanie A. "Flexural Response of Masonry Elements Strengthened with Epoxy-Bonded Elastomeric Fiber Reinforced Films". Thesis, Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/19836.

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The structural response of unreinforced masonry elements strengthened with hybrid elastomeric/fiber materials was investigated through material characterization and flexural experiments. Material characterization tests were performed on various unreinforced and reinforced elastomeric materials to identify those materials that were best suited for use as structural retrofits. After material characterization was completed, the three most promising material systems were selected for further investigation, including one unreinforced elastomer film and two reinforced elastomer films with fiber orientations at 0/90° and +/- 45° relative to the major axis of the masonry elements. A series of four-point bending tests were performed on the selected masonry and epoxy bonded elastomer/fiber hybrid retrofits to determine the structural response of the composite systems. The experimental load-deformation response was used, along with material characterization results, in the development of a semi-empirical model to predict the static moment capacity of the strengthened masonry system. This model will be used in the development of reliable design criteria for masonry walls strengthened with these advanced materials.

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Krollmann, Jan Wolfgang [Verfasser]. "A contribution to integral fiber reinforced hinges based on carbon fiber reinforced elastomers and the hybrid-matrix approach / Jan Wolfgang Krollmann". München : Verlag Dr. Hut, 2018. http://d-nb.info/1168535093/34.

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Brieu, Mathias. "Homogénéisation et endommagement de composites elastomères par techniques de calcul parallèle". Cachan, Ecole normale supérieure, 1999. http://www.theses.fr/1999DENS0005.

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Le dimensionnement et la simulation numérique de la réponse de matériaux composites hyper élastiques, endommageables, sont rendus extrêmement difficiles du fait du nombre important d'hétérogénéités présentes au sein de la structure, du comportement fortement non linéaire des constituants et, dans le cas de structures endommageables, de la nature instationnaire des problèmes à traiter. Afin de s'affranchir de ces difficultés, on propose d'utiliser conjointement, une technique d'homogénéisation adaptée a la prose en compte de comportements hyper élastiques, une méthode de résolution non incrémentale de problèmes non linéaires et des techniques de calcul parallèle si la taille des problèmes à résoudre le nécessite. Nous consacrons ce mémoire à la mise en œuvre de ces différentes techniques, en l'illustrant par la simulation de la réponse de quelques matériaux composites à constituants de comportement hyper élastique ainsi que par la simulation de la propagation d'endommagements en leur sein. A cet effet, après avoir explicité la nature des problèmes à traiter, nous présentons la méthode d'homogénéisation et la technique de résolution développées et utilisées. A partir d'exemples relatifs aux composites unidirectionnels a fibres longues, nous mettons en évidence les potentialités de ces méthodes, vis-à-vis de l'analyse de susceptibilités locales a l'endommagement. Leur utilisation pour le développement d'une approche micro-macro permet ensuite de simuler la propagation d'endommagements au sein de milieux hyper élastiques et composites à constituants hyper élastiques. Enfin, dans le but de permettre à ces méthodes de réaliser pleinement leur potentialité, une résolution sur machines multiprocesseurs est proposée, grâce a l'utilisation de méthode de décomposition en sous-domaines.

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Krollmann, Jan [Verfasser], Klaus [Akademischer Betreuer] Drechsler, Klaus [Gutachter] Drechsler i Horst [Gutachter] Baier. "A contribution to integral fiber reinforced hinges based on carbon fiber reinforced elastomers and the hybrid-matrix approach / Jan Krollmann ; Gutachter: Klaus Drechsler, Horst Baier ; Betreuer: Klaus Drechsler". München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1167926234/34.

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Fedorova, Svitlana. "Constitutive Modelling of Composites with Elastomer Matrix and Fibres with Significant Bending Stiffness". Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-391300.

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Hedayati, Dezfuli Farshad. "Hysteretic behaviour of steel- and fibre-reinforced elastomeric isolators fitted with superelastic shape memory alloy wire". Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/53019.

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Among different types of earthquake protective mechanisms, elastomeric base isolators, also called rubber bearings (RBs), are one of the most well-known systems that are widely used in buildings and bridges. They can regulate the seismic response of structures, increase the public safety, and reduce the cost of repair and rehabilitation by providing lateral flexibility and dissipating the earthquake’s energy. RBs consist of elastomeric layers which are reinforced with steel shims or fibre-reinforced polymer composites. Seeking performance improvements, as well as cost and weight reduction led scientists to introduce different types of RBs. However, most RBs possess weaknesses such as limited shear strain capacity, un-recovered residual deformation, and instability due to large deformations. Using superelastic (ability to regain original shape upon unloading) shape memory alloy (SMA) in the form of wire, bar, or spring is a solution to partially overcome the aforementioned limitations. Its unique characteristics such as a flag-shaped hysteresis with zero residual deformation, superelastic effect (up to 13.5% recoverable strain) and a suitable fatigue property make it an ideal candidate for such applications. Objectives of this thesis are to propose a new generation SMA wire-based RBs (SMA-RB) and develop a novel constitutive model for such smart isolators in order to accurately capture their shear hysteretic behaviour. With the purpose of evaluating the performance of SMA-RBs in structural applications, the seismic fragility of a highway bridge isolated by SMA-RBs was assessed. First, a number of scaled carbon fibre-reinforced elastomeric isolators (C-FREIs) were manufactured and tested. Then, based on the experimental observations, numerical simulations were generated using finite element method (FEM). Results showed that incorporating SMA wires into natural and high-damping rubber bearings (NRB, HDRB) slightly improves the re-centring capability and energy dissipation capacity. However, equipping lead rubber bearing (LRB) with double cross SMA wires significantly reduces the residual deformation and noticeably enhances the energy damping property. It was also depicted that the developed hysteresis of SMA model can be characterized by three stiffnesses and two shear strain limits upon activation of SMA wires. Findings revealed that SMA wires can increase the reliability of elastomeric bearings and bridge system.
Applied Science, Faculty of
Engineering, School of (Okanagan)
Graduate

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Adib, Natanzi Heshmatollah. "Effect of bonding variation and component combination on dynamic characteristics of compound semi-bonded carbon fiber reinforced elastomeric isolator (CSB-CFREI)". Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/59129.

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Over the past thirty years, seismic isolation has been considered a viable earthquake damage mitigation technique and has been implemented to protect new and existing structures. However, due to the high production cost and implementation challenges of conventional seismic isolators, application of this protective technology has been limited to high value buildings with important and sensitive contents. To ensure widespread application of the base isolation systems for ordinary residential and commercial buildings, especially in developing countries, not only the production cost must be reduced, but the implementation efficiency must improve as well. With this intention in this study, a new cost effective Elevated Semi-Bonded Carbon Fiber-Reinforced Elastomeric Isolator (ESB-CFREI) with lower production cost and higher implementation efficiency is designed, manufactured, and tested. The innovative ESB-CFREI undergoes lateral cyclic excitations with a unique deformation mechanism that differs from that of conventional Steel Reinforced Elastomeric Isolators SREI and Bonded and Un-Bonded Carbon Fiber Reinforced Elastomeric Isolators. The ESB-CFREI can be used in isolation as an independent “Component Isolator” or combined with other component isolators to form a CESB-CFREI “Compound Isolator.” According to the experimental results, isolators with different bonding levels (BL) are characterized by different overall dynamic characteristics. Depending on component combination configurations, the compound isolators have different average bonding values that result in different damping, effective lateral shear, and axial compression stiffness. Results from experimental tests on different compound isolators demonstrated that change in combination configuration effectively influences the dynamic characteristics of the compound isolator. Dynamic characteristics of component (ESB-CFREI) and compound isolator (CESB-CFREI) as low-cost seismic isolators were investigated by conducting analytical and experimental studies. The isolator’s effective lateral shear and axial compression stiffness along with the isolation efficiency (IE) were defined. The experimental outcome demonstrated the effect of bonding variation on the dynamic characteristics, performance, and efficiency of the ESB-CFREI. The effects of component combination on the dynamic characteristics of the compound isolators were also investigated. Component material testing to investigate the hyper-elastic behaviour of the isolator’s rubber component and long duration excitation tests to study the isolator’s durability and performance were conducted as well.
Applied Science, Faculty of
Engineering, School of (Okanagan)
Graduate

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曾建稄. "A study on fiber reinforced elastomer pipe in submarine use". Thesis, 1992. http://ndltd.ncl.edu.tw/handle/88578826952157008018.

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Książki na temat "Fiber reinforced elastomer"

Eller, Robert. Automotive plastics: Growth opportunities and key issues. Waltham, MA: Decision Resources, 1993.

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M, Arnold S., i NASA Glenn Research Center, red. An analysis of the macroscopic tensile behavior of a nonlinear nylon reinforced elastomeric composite system using MAC/GMC. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 1999.

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Miyano, Yasushi, i Masayuki Nakada. Durability of Fiber-Reinforced Polymers. Wiley & Sons, Limited, John, 2017.

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Miyano, Yasushi, i Masayuki Nakada. Durability of Fiber-Reinforced Polymers. Wiley & Sons, Incorporated, John, 2017.

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Miyano, Yasushi, i Masayuki Nakada. Durability of Fiber-Reinforced Polymers. Wiley & Sons, Limited, John, 2017.

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Miyano, Yasushi, i Masayuki Nakada. Durability of Fiber-Reinforced Polymers. Wiley & Sons, Incorporated, John, 2017.

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Miyano, Yasushi, i Masayuki Nakada. Durability of Fiber-Reinforced Polymers. Wiley & Sons, Incorporated, John, 2017.

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An analysis of the macroscopic tensile behavior of a nonlinear nylon reinforced elastomeric composite system using MAC/GMC. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 1999.

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Części książek na temat "Fiber reinforced elastomer"

Castillo Ruano, Pablo, i Alfred Strauss. "Innovative circular fiber reinforced elastomeric isolation devices". W Forschungskolloquium 2018 Grasellenbach, 18–19. Wiesbaden: Springer Fachmedien Wiesbaden, 2018. http://dx.doi.org/10.1007/978-3-658-23627-4_5.

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Bardelli, T., D. Magni i C. Marano. "Large deformation non-linear response of fiber-reinforced elastomers: Glass fibers-polydimethylsiloxane laminates". W Constitutive Models for Rubber XII, 508–11. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003310266-83.

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Steigmann, David J. "Effects of Fiber Bending and Twisting Resistance on the Mechanics of Fiber-reinforced Elastomers". W Nonlinear Mechanics of Soft Fibrous Materials, 269–305. Vienna: Springer Vienna, 2015. http://dx.doi.org/10.1007/978-3-7091-1838-2_6.

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Barik, Jyoti Ranjan, i Purnachandra Saha. "Seismic Control of Benchmark Highway Bridge Using Fiber-Reinforced Elastomeric Isolator". W Recent Developments in Sustainable Infrastructure, 345–61. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4577-1_29.

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Prakash, Shiv, Naqeeb Ul Islam i R. S. Jangid. "Unbonded Fiber-Reinforced Elastomeric Isolators Coupled with Negative Stiffness-Based Dampers". W Lecture Notes in Civil Engineering, 691–702. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1608-5_50.

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Sinjari, S., N. Stratton, J. Cercel i N. Van Engelen. "Influence of the Direction of Lateral Load on Fiber-Reinforced Elastomeric Isolators". W Lecture Notes in Civil Engineering, 15–27. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0511-7_2.

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Bai, Junfu, N. Van Engelen i Shaohong Cheng. "FEA Validation of the Moment-Rotation Relationship of Unbonded Fiber-Reinforced Elastomeric Bearings". W Lecture Notes in Civil Engineering, 253–64. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0511-7_22.

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Ambili, P., S. C. Mohan i S. Sistla. "Understanding the Torsional Response of Unbonded Fiber Reinforced Elastomeric Isolators: A Finite Element Study". W Lecture Notes in Civil Engineering, 459–72. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1608-5_33.

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Riyadh, Miah Mohammed, Jhordy Rodriguez i M. Shahria Alam. "Shape Factor Influence of Fibre Reinforced Elastomeric Isolators on the Seismic Response of a Bridge Pier". W Lecture Notes in Civil Engineering, 553–64. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0656-5_47.

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Motsoeneng, T. S., S. Magagula, M. Mohapi, K. Lebelo, J. S. Sefadi i M. J. Mochane. "Elastomer matrix based natural fiber composites". W Fiber Reinforced Composites, 167–85. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-821090-1.00013-2.

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Streszczenia konferencji na temat "Fiber reinforced elastomer"

Kooshki, Pantea, i Tsz-Ho Kwok. "Review of Natural Fiber Reinforced Elastomer Composites". W ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-86042.

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This paper is a review on mechanical characteristics of natural fibers reinforced elastomers (both thermoplastics and thermosets). Increasing environmental concerns and reduction of petroleum resources attracts researchers attention to new green eco-friendly materials. To solve these environmental related issues, cellulosic fibers are used as reinforcement in composite materials. These days natural fibers are at the center of attention as a replacement for synthetic fibers like glass, carbon, and aramid fibers due to their low cost, satisfactory mechanical properties, high specific strength, renewable resources usage and biodegradability. The hydrophilic property of natural fibers decreases their compatibility with the elastomeric matrix during composite fabrication leading to the poor fiber-matrix adhesion. This causes low mechanical properties which is one of the disadvantages of green composites. Many researches have been done modifying fiber surface to enhance interfacial adhesion between filler particles and elastomeric matrix, as well as their dispersion in the matrix, which can significantly affect mechanical properties of the composites. Different chemical and physical treatments are applied to improve fiber/matrix interlocking.

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Ceglar, T., i H. Pettermann. "Homogenization of Fiber Reinforced Elastomer Laminates". W VIII Conference on Mechanical Response of Composites. CIMNE, 2021. http://dx.doi.org/10.23967/composites.2021.031.

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Peel, Larry D., i Madhuri Lingala. "Testing and Simulation of Stress-Stiffening Extreme Poisson’s Ratio Twisted Fiber-Reinforced Elastomer Composites". W ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2008. http://dx.doi.org/10.1115/smasis2008-526.

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Laminates that exhibit high and negative Poisson’s ratios can be used as solid-state actuators, passive and active vibration dampers, and for morphing aircraft structures. Recently, fiber-reinforced elastomer (FRE) laminates have been fabricated that exhibit extreme (high and negative) Poisson’s ratios [1]. The current research explores twisted fiber bundle elastomeric laminates (both single and double helix) which are being investigated using experimentation, linear and non-linear finite element analysis (FEA). Twisted fiber bundles can be made from carbon fibers, fiberglass, etc, but for simplicity the current work uses twisted cotton string. It is observed that uniaxial fiber-reinforced elastomer laminates, where the fibers are twisted as shown in Figure 1, exhibit stress stiffening. Negative Poisson’s ratios may be produced if the fiber bundles have a double helical path as simulated by a series of laminated tubes. Future auxetic FRE laminates may be developed that do experience extreme shear.

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Yasuda, Nathan K., David S. Schulman, David J. Traina, Emily R. Mather, Kerry V. Lane, Michael E. Lo, Kenneth D. Weaver i Frank J. Shih. "Investigation of Energy Absorption Characteristic of Ceramic Fiber Reinforced Elastomer Composites". W ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-72103.

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Head protection from impact events for participants in contact sports or other activities is of current interest. Custom designed and synthesized material systems which effectively reduce the peak force transmitted to the individual and absorb a substantial portion of the impact energy are highly desirable. In applications in which recovery time of the material is not a primary concern, multiple means of energy absorption, including deformation and fracturing of the reinforcement material, may be suitable. In the present study, new composite material systems using a urethane elastomer matrix reinforced with glass and unidirectional carbon fiber rods were synthesized and subjected to compression loading along the fiber direction. The constituent fiber rods absorbed energy either through plastic deformation, buckling, or fracturing during compression loading. The effect of different reinforcement material, configuration, and length were physically tested. A cascading failure mode was achieved by embedding fibers of varying length in the matrix. This triggered successive failure events as the primary load was transferred from the longest rod to each successive shorter rod. The elastomer matrix was also experimentally characterized quasi-statically. A thin outer polymer layer further constrained the elastomer composite and allowed for fine adjustment and optimization of its crushing characteristics.

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Li, Tiefeng, Yuhan Xie, Chi Li, Xuxu Yang, Yongbin Jin, Junjie Liu i Xiaoqiang Huang. "Fiber-reinforced dielectric elastomer laminates with integrated function of actuating and sensing". W SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, redaktor Yoseph Bar-Cohen. SPIE, 2015. http://dx.doi.org/10.1117/12.2084984.

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Murugan, Senthil, Eric I. Saavedra Flores, Michael I. Friswell i Sondipon Adhikari. "Optimal Design of Elastomer Composites for Morphing Skins". W ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/smasis2011-5021.

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Morphing aircraft concepts aim to enhance the aircraft performance over multiple missions by designing time variant wing configurations. The morphing concepts require wing skins that are flexible enough to allow large in-plane stretching and high bending stiffness to resist the aerodynamic loads. In this study, an optimization problem is formed to enhance the in-plane flexibility and bending stiffness of wing skins modeled as composite plates. Initially, the optimal fiber and elastomer materials for highly flexible fiber reinforced elastomer laminates are studied using materials available in the literature. The minor Poisson’s ratio of the laminate is almost zero for all the fiber and elastomer combinations. In the next stage, the effects of boundary conditions and aspect ratio on the out-of-plane deflection of the laminate are studied. Finally, an optimization is performed to minimize the in-plane stiffness and maximize the bending stiffness by spatially varying the volume fraction of fibers of a laminate. The optimization results show that the in-plane flexibility and bending stiffness of the laminate with a variable fiber distribution is 30–40% higher than for the uniform fiber distribution.

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Kandasamy, Sivakumar, Harish Devaraj, Logan Stuart, Andrew McDaid i Kean C. Aw. "A Novel Varying Angle Fiber-Reinforced Elastomer as a Soft Pneumatic Bending Actuator". W ICACR 2019: 2019 3rd International Conference on Automation, Control and Robots. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3365265.3365272.

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Sancaktar, Erol, i Xiaoxiao Liu. "Excimer Laser Treatment of Steel Fibers for Improved Adhesion to Silicone Rubber". W ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/detc2020-22194.

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Abstract Former investigators observed characteristic laser-induced structure on synthetic fibers and steel cord surfaces after irradiation, which is considered by us as an advantageous factor in developing bonding strength of fiber-elastomer composites. We applied various UV laser treatments on the surfaces of steel fiber in order to obtain similar topographic features. Surface modification was observed under scanning electron microscope (SEM). In consideration as factors in bonding strength, mechanical properties of the matrix elastomer (silicon rubber) had been tested in addition to its thermal properties by differential scanning calorimetry (DSC) and Carbon Black (CB) filler dispersion properties by atomic force microscopy (AFM). As the main test for adhesion strength, we performed a fiber pull-out test method developed by our research group for bonding strength of cord fibers to silicon rubber in both neat and CB filled forms for comparison purposes. Our experiment results revealed better adhesion strength when using silicone rubber matrix reinforced with CB.

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Bishop-Moser, Joshua, Girish Krishnan, Charles Kim i Sridhar Kota. "Kinematic Synthesis of Fiber Reinforced Soft Actuators in Parallel Combinations". W ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-71261.

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Complex controlled motions, flexible surfaces, and minimal moving mass all drive the need for soft robots using fiber reinforced elastomer enclosures (FREEs) in a parallel configuration. This paper addresses the challenge of synthesizing a design with desired kinematics, as only small portions of the entire design space have been previously investigated. A systematic characterization of the kinematic freedom, constraint, and actuation directions of all circumferentially and longitudinally repeating fiber topologies is determined. The parallel kinematics is mapped for the combinations of actuators by determining the sets of mobilities necessary in the constituent members for all possible output motions. The kinematics of all possible parallel combinations for pairs and triangular triplets of FREEs are mapped. A graphical user interface (GUI) is presented, which allows a user to input a kinematic specification and generate all feasible FREE sets and their respective kinematics. With the entire design space mapped and easily accessible, a range of possible applications across a span of kinematic requirements becomes readily attainable. A case study is performed to verify the ability of the GUI to determine feasible FREE sets for a pick-and-place manipulator task.

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Goulbourne, N. C., i S. Son. "Numerical and Experimental Analysis of McKibben Actuators and Dielectric Elastomer Sensors". W ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42495.

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Fiber-reinforced pneumatic actuators have the potential to enable the continually evolving technological fields of flexible control surfaces for aircrafts or aquatic vehicles, compliant limbs and graspers for robots, prosthetics, orthotics, and other human-augmenting systems. The McKibben actuator is a pneumatically actuated cylindrical construct consisting of a flexible rubber bladder sheathed in a fiber network, which garners its impressive contracting force from the inextensible fibers that prevent axial extension when an inflation pressure is applied to the internal bladder. The relationship between the axial deformation and contraction force can be accurately modeled using a large deformation continuum model. Our approach is based on the work of Kydoniefs and Matsikoudi-Iliopoulou. Specifically, numerical solutions are obtained by assuming an Ogden strain energy function for the actuator. The deformed shape of the membrane, the fiber angle and the stress components of the membrane and the fibers are predicted by using the initial shape and elastic material parameters. In this paper, a comparison between experimental and numerical modeling results are compared for various actuator geometries. Furthermore, placing a cylindrical dielectric elastomer sensor in direct contact with the inner surface of the McKibben actuator could facilitate in situ monitoring of actuator strains. To illustrate this principle, an experimental setup was developed to measure the changing capacitance of a cylindrical dielectric elastomer sensor as a function of axial extension. A comparison of the predicted and the measured response provides validation of a proposed numerical model. The effects of the dimensions of the sensor on the sensitivity of capacitance measurements are investigated in this paper.

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