Laminate Composite Materials
Mostrando 1-12 de 19 artigos, teses e dissertações.
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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
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2. Metodología para la fabricación de una prótesis transtibial a base de material compuesto de fibra de carbono y resina epóxica
ABSTRACT The problematic of handicap people, especially amputees, significantly impacts to the society. Existing prosthesis gives solutions that discourage amputee’s expectations; high costs are not often accessible for most of them. This research includes a methodology for construction of a prototype mold for manufacturing a generic foot prosthetic, Whose
Matéria (Rio J.). Publicado em: 19/07/2018
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3. Numerical Study On Multi Layered Target Material Subjected To Impact Loading
Abstract In this study, the glass/epoxy composite laminate is layered with polyurethane foam/ polyurethane sheet and silicon carbide to analyse their response during high mass and low velocity impact. The silicon carbide is layered in two forms, one is as plate and the other is as inserts. The target materials are prepared in various combinations and the bo
Lat. Am. j. solids struct.. Publicado em: 04/06/2018
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4. Ballistic Application of Coir Fiber Reinforced Epoxy Composite in Multilayered Armor
Multilayered armor systems (MAS) composed of relatively lighter materials with capacity to provide personal ballistic protection are being extensively investigated and used in armor vests. A typical MAS to stand high impact energy 7.62 mm bullet has a front ceramic followed by an aramid fabric laminate, such as Kevlar™. Since both the army and municipal po
Mat. Res.. Publicado em: 15/05/2017
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5. Finite Element Analysis of Pilot’s Helmet Design Using Composite Materials for Military Aircraft
ABSTRACT The objective of this research was to design pilot helmets and to perform analysis of designed ballistic helmet against impact strength of bullet in Solidworks and Laminator software. The material used for construction of the helmet is fiber reinforced polymer matrix composite in which polymer matrix is made of nylon, a thermoset resin, and the fibe
J. Aerosp. Technol. Manag.. Publicado em: 2016-03
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6. Simulação da propagação de ondas ultrassônicas longitudinais em materiais estruturais aeroespaciais / Simulating the propagation of longitudinal ultrasonic waves in aerospace structural materials
The use of composite materials in the aerospace industry is increasing due to its low ratio between density and mechanical strength. To perform non-destructive testing using ultrasound, it is necessary to know the sound velocity in these materials. It is not always possible to manufacture physical prototypes during the development of a project because of tim
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2012
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7. Bonded Joints Design Aided by Computational Tool
Abstract: In order to aid the design of bonded joints, a computational tool named System of Analysis for Joints (SAJ) was developed. The software can analyze single and double lap bonded joint with composite-composite or metal-composite materials as adherent parts. Thus, SAJ can calculate the stress distribution, loads and displacements. Their results were c
J. Aerosp. Technol. Manag.. Publicado em: 2012-09
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8. Análise de critérios de falha baseados em fenômenos físicos para materiais compósitos laminados / Analysis of failure criteria based on physical phenomenas for laminate composite materials
O objetivo deste trabalho é realizar uma análise numérica dos critérios de falha para materiais compósitos laminados. Critérios de falha tradicionais, como os critérios de Tsai- Hill e Tsai-Wu, são estudados e comparados com critérios de falha mais recentes, baseados em fenômenos físicos, como os critérios de Puck e LaRC03. Dois envelopes de falh
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/10/2011
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9. Estudo do comportamento mecânico de dutos de aço com reparos compósitos hibridos / Mechanical behavior of steel pipes repaired with a hybrid laminate
Worldwide, steel pipes play an important role in many industrial sectors. Meanwhile, any kind of duct is prone to suffer superficial damages due to corrosion. In this sense, techniques which allow fast and reliable repairs of ducts have a fundamental importance to increase the life cycle, avoid accidents, minimize environmental contaminations and to keep the
Publicado em: 2010
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10. Thermographic inspection of impact damage in solid fiber-reinforced polymer matrix composite laminates. / Inspeção termográfica de danos por impacto em laminados compósitos sólidos de matriz polimérica reforçada com fibras de carbono.
Continuous carbon fiber-reinforced thermosetting and thermoplastic composite laminates were exposed to single transversal impact with different energy levels. The damages marked to the structural materials were evaluated by active infrared thermography in transmission mode. In general, the thermoplastic laminate thermograms showed more clear and delineated d
Publicado em: 2010
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11. Tenacidade à fratura translaminar dinâmica de um laminado híbrido metal-fibra titânio-grafite de grau aeronáutico / Dynamic translaminar fracture toughness of aeronautical grade titanium-graphite hybrid fiber-metal laminate
Several dynamic translaminar fracture toughness criteria have been determined for TiGr hybrid fiber-metal laminate through Linear Elastic (K-factor) and Elastic-Plastic (J-integral) Fracture Mechanics (LEFM and EPFM, respectively) concepts and methodologies. Instrumented Charpy impact testing was carried out over a wide range of temperatures under two loadin
Publicado em: 2009
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12. Charpy impact toughness of conventional and advanced composite laminates for aircraft construction
A weight-based analysis was made of the translaminar Charpy impact toughness performance of conventional and advanced composite materials for aircraft fabrication. The materials were carbon-epoxy (C-Ep) and hybrid fiber-metal TiGr (Titanium-Graphite) laminates. 5 mm-thick three-point bend specimens were tested over a temperature range of -70 to 180 ºC to re
Materials Research. Publicado em: 2009