Reinforced Plastics
Mostrando 1-12 de 22 artigos, teses e dissertações.
-
1. Failure Theories on Carbon/Kevlar Hybrid Fabric Based Composite Laminate: Notch and Anisotropy Effects
Composite materials have been increasingly used in both researches and industries, given their wide range of innovative applications and configurations. High-performance hybrid fabric-reinforced plastics stand out in this sector. In the present research, an epoxy-based vinyl ester resin laminate reinforced with bidirectional hybrid fabric consisting of carbo
Mat. Res.. Publicado em: 25/04/2019
-
2. Materiales eco-compatibles reforzados a base de almidón de mandioca para aplicaciones agronómicas
ABSTRACT Plastic mulch is used in various crops production in order to increase yield, extend growing season, weed control, increase fertilizers efficiency and improve soil conditions. However, since such plastics removal and disposal represent not only an additional cost, but also a source of environmental pollution, interest in starch-based materials as a
Matéria (Rio J.). Publicado em: 02/08/2018
-
3. Studies on thermal and viscoelastic properties of vinyl ester resin and its composites with glass fiber
Vinyl ester resins are widely used in sandwich composite structures. Because of their good resistance to chemicals, flexibility and easy processing, these sandwich are extensively applied in the marine sector. These composites are typically manufactured by liquid molding processes, especially infusion. In this study, RTM light was used to inject the polymeri
Matéria (Rio J.). Publicado em: 2015-03
-
4. Fracture characteristics and anisotropy in notched glass fiber reinforced plastics
The damage mechanism of reinforced plastics may be present in many different ways, since it depends on many factors. Highlights may be given to the effect of stress concentration in of geometric discontinuity in the sections of these structural elements, which in general always leads to certain characteristics of the fracture. In the case of glass fiber rein
Mat. Res.. Publicado em: 2014-12
-
5. Impact properties of aluminium - glass fiber reinforced plastics sandwich panels
Aluminium - glass fiber reinforced plastics (GFRP) sandwich panels are hybrid laminates consisting of GFRP bonded with thin aluminum sheets on either side. Such sandwich materials are increasingly used in airplane and automobile structures. Laminates with varying aluminium thickness fractions, fiber volume fractions and orientation in the layers of GFRP were
Materials Research. Publicado em: 27/03/2012
-
6. Bending in laminas of NFPR: type of reinforcement, fracture and properties
Natural fiber reinforced plastics (NFRP) have awakened considerable interest in the area of polymer composites, because of the need to develop new, environmentally friendly materials. One of the most complex ways of manufacturing this type of material is in the form of ultrathin laminar layers; however, this process hinders mechanical testing, mainly three a
Materials Research. Publicado em: 04/03/2011
-
7. Estudo comparativo entre materiais metálicos e compósitos poliméricos para aplicações mecânicas na indústria automobilistica
Aluminum and plastic composites used in the automotive industry is a reality and increases in new projects. Materials and components are responsible for the most part of vehicle costs and the materials mix is changing continually due to light-weight solutions to reduce vehicle costs and weight. Aluminum and plastics composites are responsible for these solut
Publicado em: 2009
-
8. To increase of SIS rubber thermal resistance with polioxyde phenilene addition / Aumento da resistencia termica da borracha SIS atraves da adição de poli (oxido fenileno)
The rubber use SIS (block copolymer) in several such applications as shoes, technical engines, stickers with low thermal resistance (up to 40º C). However, in this work they come the results obtained with the incorporation of PPO (polioxide phenilene) on rubber SIS, with results the increase of thermal resistance of the rubber, increase the applications. In
Publicado em: 2009
-
9. Estudo do desalinhamento das fibras nas propriedades mecânicas de compósitos estruturais de pás eólicas / Study of fiber misalignment effects on the mechanical properties of wind blades structural composites
This work presents the study of waviness influence on the mechanical properties of wind blades structural components fabricated by vacuum infusion. For this purpose, out-of-plane waviness, which is a common manufacturing defect, was induced on glass and carbon reinforced plastics (GRP and CRP) and compared with control laminates without waviness (wave-free c
Publicado em: 2009
-
10. Estudo do desalinhamento das fibras nas propriedades mecânicas de compósitos estruturais de pás eólicas / Study of fiber misalignment effects on the mechanical properties of wind blades structural composites
This work presents the study of waviness influence on the mechanical properties of wind blades structural components fabricated by vacuum infusion. For this purpose, out-of-plane waviness, which is a common manufacturing defect, was induced on glass and carbon reinforced plastics (GRP and CRP) and compared with control laminates without waviness (wave-free c
Publicado em: 2009
-
11. Compositos hibridos de poli (tereftalato de etileno) (PET) / fibra de vidro (FV) / modificador de impacto (E-MA-GMA) / Hybrid composites of PET / modifier of impact (E-MA-GMA) fibre glass
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 compo
Publicado em: 2008
-
12. Algoritmo genético aplicado à otimização de asas de material compósito de veículos aéreos não tripulados / Genetic algorithm applied to optimization of composite material wings of unmanned air vehicles
The advent of the unmanned air vehicles (UAVs) represents a paradigm break in the aeronautical field. The project concepts involved in the development of UAVs are revised and its potential applications are rose. Also the issues related to UAVs operation are assessed and the regulatory questions involved in their certification and integration to the civil air
Publicado em: 2005