Carbon Fiber Composites
Mostrando 13-24 de 76 artigos, teses e dissertações.
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13. Fractographic and rheological characterizations of CF/PP-PE-copolymer composites tested in tensile
Abstract This work shows the fractographic study of fractured surfaces resulted from tensile tests of thermoplastic composites based on poly(propylene-co-ethylene) (PP-PE) and modified PP-PE copolymers reinforced with continuous carbon fibers (CF). The PP-PE matrix was modified with two agents called AM1 (based on maleic anhydride) and AM2 (containing an ela
Polímeros. Publicado em: 29/06/2017
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14. Electromagnetic Properties of Multifunctional Composites Based on Glass Fiber Prepreg and Ni/Carbon Fiber Veil
ABSTRACT: Multifunctional composites combine structural and other physicochemical properties, with major applications in aeronautical, space, telecommunication, automotive, and medical areas. This research evaluates electromagnetic properties of multifunctional composites based on glass fiber woven fabric pre-impregnated with epoxy resin laminated together c
J. Aerosp. Technol. Manag.. Publicado em: 2017-06
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15. Mechanical and Water Intake Properties of Banana-Carbon Hybrid Fiber Reinforced Polymer Composites
The concern for the environmental pollution and the prevention of resources has attracted researchers to develop new eco-friendly green materials based on sustainability principles. In this experimental study, there are six different composite samples were fabricated by using banana and carbon fibers with epoxy resin matrix. The mechanical properties such as
Mat. Res.. Publicado em: 26/01/2017
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16. Anomalous Behavior of a Solid Rocket Motor Nozzle Insert During Static Firing Test
ABSTRACT This paper presents the study and development of a firing test used to evaluate the behavior of a solid rocket motor. The motivation for the development of a subscale solid rocket motor with end burning propellant grain geometry arose from the need to evaluate the nozzle inserts of graphite for the possible replacement with the carbon fiber-reinforc
J. Aerosp. Technol. Manag.. Publicado em: 2016-12
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17. Shear Properties of Carbon Fiber/Phenolic Resin Composites Heat Treated at High Temperatures
ABSTRACT Carbon fiber/phenolic resin composites have long been used as ablative materials in rocketry. Ablation is a complex multiscale problem where radiative and convective heating leads to the pyrolysis of phenolic resin matrix, resulting in the formation of a porous insulation char as thermal protection. This study investigates the shear properties evolu
J. Aerosp. Technol. Manag.. Publicado em: 2016-09
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18. Applicability of FT-IR Techniques and Goniometry on Characterization of Carbon Fiber Surfaces
ABSTRACT Carbon fibers have been widely used as structural reinforcement in aeronautical composites, because of their exceptional mechanical properties. However, carbon fibers present few polar groups on their surfaces inducing a weak interaction with some thermosetting and thermoplastic matrices. Surface treatments, such as thermal and electrochemical oxida
J. Aerosp. Technol. Manag.. Publicado em: 2016-03
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19. Correlation between degree of crystallinity, morphology and mechanical properties of PPS/carbon fiber laminates
The crystallization degree in semi-crystalline thermoplastics plays an important role in determining the final properties of structural composite material (e.g. toughness, stiffness and solvent resistance). The main purpose of this work is to study different induced degrees of crystallinity in carbon fiber (CF) reinforced polyphenylene sulfide (PPS) composit
Mat. Res.. Publicado em: 12/02/2016
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20. Electrical Behavior of Carbon Fiber/Phenolic Composite during Pyrolysis
Carbon fiber reinforced carbon (CFRC) composites, also called carbon/carbon (C/C) composites are materials with superior characteristics such as low density, good thermal shock resistance, high strength and low ablation under severe environments. Due to their properties, CFRC composites are ideal candidate in the high temperature fields. By pyrolysis process
Mat. Res.. Publicado em: 03/11/2015
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21. Influence of the polymeric coating thickness on the electrochemical performance of Carbon Fiber/PAni composites
Abstract Carbon fiber/polyaniline composites (CF/PAni) were synthesized at three different deposition time of 30, 60 and 90 min by oxidative polymerization. The composite materials were morphologically and physically characterized by scanning electron microscopy and by Raman spectroscopy, respectively. Their electrochemical responses were analyzed by cyclic
Polímeros. Publicado em: 2015-10
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22. Mechanical Properties Evaluation of the Carbon Fibre Reinforced Aluminium Sandwich Composites
AbstractSandwich laminates play an important role in industries and they are used in varieties of engineering applications. In the present investigation, carbon fiber reinforced aluminium sandwich laminates are fabricated and their properties such as tensile, flexural and impact are studied for their use in structural applications. All the tests are carried
Mat. Res.. Publicado em: 2015-10
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23. Shear Strengthening of RC Deep Beams with Sprayed Fiber-reinforced Polymer Composites (SFRP): Part 2 Finite Element Analysis
AbstractThis paper presents the finite element analysis conducted on SFRP strengthened reinforced concrete (RC) deep beams. The analysis variables included SFRP material (glass and carbon), SFRP thickness (3 mm and 5 mm), SFRP configuration and strength of concrete. The externally applied SFRP technique is significantly effective to enhance the ultimate load
Lat. Am. j. solids struct.. Publicado em: 2015-07
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24. Evaluating the mechanical properties of E-Glass fiber/carbon fiber reinforced interpenetrating polymer networks
A series of vinyl ester and polyurethane interpenetrating polymer networks were prepared by changing the component ratios of VER (Vinyl ester) and PU (Polyurethane) and the polymerization process was confirmed with Fourier Transform infrared spectroscopy. IPN (Inter Penetrating Polymer Network - VER/PU) reinforced Glass and carbon fiber composite laminates w
Polímeros. Publicado em: 2015-02