Comparison of tensile strength of different carbon fabric reinforced epoxy composites

Paiva, Jane Maria Faulstich de; Mayer, Sérgio; Rezende, Mirabel Cerqueira

doi:10.1590/s1516-14392006000100016

Cited by 82 publications

(51 citation statements)

References 19 publications

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“…Results of a previous work (23) The compressive strength values and the standard deviations for F584 and 8552 laminates are close, excepted for the F584/8HS one determined in a previous study 14 . Comparing the influence of the 2 reinforcements it is verified the tendency of higher compressive strength values for the 8HS laminates.…”

Section: Resultssupporting

confidence: 70%

Mechanical and morphological characterizations of carbon fiber fabric reinforced epoxy composites used in aeronautical field

Paiva

Santos

Rezende³

2009

Mat. Res.

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Carbon fiber reinforced composites (CFRC) have been used in aeronautical industry in the manufacture of different aircraft components that must attend tight mechanical requirements. This paper shows a study involving mechanical (flexural, shear, tensile and compressive tests) and morphological characterizations of four different laminates based on 2 epoxy resin systems (8552 and F584) and 2 carbon fiber fabric reinforcements (Plain Weave (PW) and Eight Harness Satin (8HS)). All laminates were obtained by handing lay-up of prepregs plies (0°/90°) and consolidation in an autoclave following an appropriate curing cycle with vacuum and pressure. The results show that the F584-epoxy matrix laminates present better mechanical properties in the tensile and compressive tests than 8552 composites. It is also observed that PW laminates for both matrices show better flexural and interlaminar shear properties.

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Section: Resultssupporting

confidence: 70%

Mechanical and morphological characterizations of carbon fiber fabric reinforced epoxy composites used in aeronautical field

Paiva

Santos

Rezende³

2009

Mat. Res.

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“…The upper value obtained through the non-optimized process (47 ± 1 GPa) (Fig. 5) exceeds the level obtained through VARIM [26] and RTM [29] and is in alignment with values observed for autoclave processing [28]. The optimized value 45 ± 1 GPa (Run CR of Fig.…”

Section: Modulus Of Elasticity In Bending (E B )supporting

confidence: 77%

Variable cavity volume tooling for high-performance resin infusion moulding

Gibbons

Segui-Garza

Hansell

2009

Proceedings of the Institution of Mechanical Engineers, Part G:

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This article describes the research carried out by Warwick under the BAE Systems/EPSRC programme 'Flapless Aerial Vehicles Integrated Interdisciplinary Research -FLAVIIR'. Warwick's aim in FLAVIIR was to develop low-cost innovative tooling technologies to enable the affordable manufacture of complex composite aerospace structures and to help realize the aim of the Grand Challenge of maintenance-free, low-cost unmanned aerial vehicle manufacture. This article focuses on the evaluation of a novel tooling process (variable cavity tooling) to enable the complete infusion of resin throughout non-crimp fabric within a mould cavity under low (0.1 MPa) injection pressure. The contribution of the primary processing parameters to the mechanical properties of a carbon composite component (bulk-head lug section), and the interactions between parameters, was determined. The initial mould gap (d i ) was identified as having the most significant effect on all measured mechanical properties, but complex interactions between d i , n (number of fabric layers), and v c (mould closure rate) were observed. The process capability was low due to the manual processing, but was improved through process optimization, and delivered properties comparable to high-pressure resin transfer moulding.

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“…On the other hand, the E% values F1NBR composites containing 5, 10 and 15 phr ER increases dramatically in comparison with F1. Lower T.S values of fabric reinforced polymeric composites were previously related to the bi-directional orientation and the undulations of the roving in the fabric, due to the woven arrangements 19 . During the tensile test the woven arrangements tend to align with the effort direction, resulting in micro-cracks in the polymeric matrix of the composite.…”

Section: Tensile Propertiesmentioning

confidence: 91%

Effect of Epoxy Resin Concentration on Some Mechanical Properties of Carbon Fabric/ Nitrile Rubber Reinforced Composites

Halim¹,

Kholy²,

Naguib³

et al. 2019

JCCS

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Carbon fiber reinforced polymer composites (CFRP) are widely used in variety of applications such as flexible aerodynamic surfaces on aircraft, under water flexible vehicles, flexible robotic skeletons and engineering applications. Epoxy resins (ER) are usually employed as the polymeric matrix, in which the fabric laminates are embedded. Although Carbon fabric/resin composites possess outstanding mechanical performance and good process-ability, however, ER are relatively brittle which causes a major problem for the performance of the final structure. In our present study, a woven carbon fiber reinforced polymer composite, with nitrile-butadiene rubber (NBR) as the polymeric matrix were fabricated by hand layup method followed by compression molding. Different concentrations (5,10,15 and 20 part per hundred, phr) of an ER were added to the NBR formulations and compared with similarly-processed CFRP reference material produced without NBR. Various static and dynamic mechanical properties were examined experimentally. The results revealed that CFRP composite containing 10 phr epoxy resin showed significant improvement in the impact strength and flexural strength due to the good energy absorbing of NBR. In addition, tensile strength decreased while elongation at break percentage increased because of high strain capability and elastic recovery of the nitrile rubber. The dynamic mechanical test results such as tan delta, glass

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Comparison of tensile strength of different carbon fabric reinforced epoxy composites

Cited by 82 publications

References 19 publications

Mechanical and morphological characterizations of carbon fiber fabric reinforced epoxy composites used in aeronautical field

Mechanical and morphological characterizations of carbon fiber fabric reinforced epoxy composites used in aeronautical field

Variable cavity volume tooling for high-performance resin infusion moulding

Effect of Epoxy Resin Concentration on Some Mechanical Properties of Carbon Fabric/ Nitrile Rubber Reinforced Composites

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