Sergio Mayer
Aeronáutica
Izod impact strength testComposite numberUltimate tensile strengthGlass transitionAramidFatigue limitScarf jointCuring (chemistry)Composite laminatesHumidityRelative humidityComposite materialEpoxyFlexural strengthCompression (physics)Tensile testingMaterials scienceYoung's modulusComposite epoxy materialScanning electron microscopePlain weaveThermoplasticPolymer compositesContinuous useCompressive strengthElastomerAutoclaveFracture (geology)Solid mechanicsPlasticizerFracture mechanicsMolding (decorative)AdhesiveDynamic mechanical analysisReinforced carbon–carbon
8Publications
5H-index
123Citations
Publications 7
Newest
#1Thaís Peres Zanetine Marques (UNIFESP: Federal University of São Paulo)
#2Sergio MayerH-Index: 5
Last. Mirabel Cerqueira Rezende (UNIFESP: Federal University of São Paulo)H-Index: 34
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Abstract This study presents the main fractographic aspects and failure modes involved on the fracture of scarf repaired laminates submitted to tensile test, using scanning electron microscopy (SEM) technique. A detailed analysis of the fractographic aspects was carried out correlating them to the failure modes, the local crack propagation, and the mechanical performance of the scarf joint. SEM analyses showed cohesive failure of the adhesive film associated with a strong mechanical anchoring be...
1 CitationsSource
#1Edson Cocchieri Botelho (UNESP: Sao Paulo State University)H-Index: 26
#2Mirabel Cerqueira Rezende (Aeronáutica)H-Index: 34
Last. Herman Jacobus Cornelis Voorwald (UNESP: Sao Paulo State University)H-Index: 23
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The continuous use of structural polymer composites in aeronautical industry has required the development of repairing techniques of damages found in different types of laminates. The most usually adopted procedure to investigate the repair of composite laminates has been by repairing damages simulated in laminated composite specimens. This work shows the influence of structural repair technique on mechanical properties of a typical carbon fiber/epoxy laminate used in aerospace industry. When an...
8 CitationsSource
Carbon fabric/epoxy composites are materials used in aeronautical industry to manufacture several components as flaps, aileron, landing-gear doors and others. To evaluate these materials become important to know their mechanical properties, for example, the tensile strength. Tensile tests are usually performed in aeronautical industry to determinate tensile property data for material specifications, quality assurance and structural analysis. For this work, it was manufactured four different lami...
47 CitationsSource
This work shows the evaluation of the glass transition temperature (T g ) by DMTA of three different families of repaired polymeric composites, manufactured with carbon fiber fabric/epoxy F584, glass fabric/epoxy F161 and aramide fabric/epoxy F161, respectively. The composites were laminated by conventional hand lay-up process used in aeronautical industry. Afterwards, simulated damages, scarf type, were made and overlapping layers of F155 epoxy resin prepregs repaired them. The DMTA curves show...
10 CitationsSource
Four families of carbon fiber reinforced composites (CFRC) used in aeronautical industry were evaluated by flexural and interlaminar shear tests. It is also characterized three families of non-conditioned and conditioned CFRC by compression test. The composites were obtained by hand lay-up process in autoclave by using prepregs based on epoxy matrices (F155 and F584) and carbon fiber fabric reinforcements (PW-"Plain Weave" and 8HS-"Eight Harness Satin"). The F155-epoxy matrix was cured at 121 °C...
46 CitationsSource
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Carbon fiber reinforced polymeric composites are used in aeronautical industry for the manufacture of aircraft components attending tight requirements. Moreover, in service, these components can suffer mechanical damages after low energy impact, provoked by hailstorms, stones, bird impacts, etc. Aiming to minimize these damages, studies suggest modifications on the orientation, reinforcement arrangement and/or in the polymeric matrices of the composite. The present work evaluates the effect of t...
#1Sergio Mayer (Embraer)H-Index: 5
#1Sérgio Mayer (Embraer)H-Index: 2
Last. Mirabel Cerqueira Rezende (International Aero Engines)H-Index: 34
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The continuous use of structural polymer composites in the aeronautical industry has required the development of repairing techniques of damages found in different types of laminates. The most usually adopted procedure to investigate the composite laminate repairing has been by repairing simulated damages in laminated composite specimens. This work shows the structural repair technique, scarf type, of a typical carbon/epoxy laminate used in the aeronautical industry, using carbon/epoxy fabric. T...
5 CitationsSource