Fire Burnthrough Response of CFRP Aerostructures. Numerical Investigation and Experimental Verification

Sikoutris, Dimitris E.; Vlachos, D.E.; Kostopoulos, V.; Jagger, Stuart; Ledin, Stefan

doi:10.1007/s10443-011-9187-x

Cited by 19 publications

(13 citation statements)

References 16 publications

(22 reference statements)

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“…Char was formed as a result of an epoxy and reinforced fibre decomposition and oxidisation. As more fire impinges with time, one of the composites that was hybridized with kenaf fibre burnt through at about 10 minutes 22 seconds, while the other three composites withstood the flame for 15 minutes according to the standard including the other composite hybridized with flax fibre, the result obtained was in agreement with the result in Sikoutris et al [30]. The FML composites fabricated showed good fire resistance; therefore, these composites can be used in fire designated zone of an aircraft engine since they withstood the flame temperature of about 1100 ± 80 C for the stated time according to the standard.…”

Section: Fire Behavioural Test Resultssupporting

confidence: 88%

“…Different devices were used to measure the flame temperature and heat flux such as those reported by Mohammed et al, [27], and convective and radiative heat transfer were also measured using different devices as reported by Balland et al, [28]. The flammability nature of some composites such as carbon reinforced epoxy was among the issues that have grabbed the attention of researchers to find the solution, whereby research on flame retardant polymers was undertaken to reduce the flammability of the composite, and also to come up with the most suitable reinforced fibres (carbon, glass and Kevlar) to be used in aircraft components [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

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Fire behavioural and mechanical properties of carbon fibre reinforced aluminium laminate composites for aero-engine

Mohammed¹,

Talib²,

Sultan³

et al. 2018

IJET

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Two different properties of fibre-metal laminate composites (FML), including the fire behaviour and mechanical properties, were experimentally studied in this paper. The fibre-metal laminate composites studied were made of aluminium alloy 2024-T3, carbon fibre, flax, kenaf and epoxy resin/hardener arranged in different forms. The aims of the study are to assess the fire behaviour of the composites using ISO2685 standard and mechanical properties of the composite after withstanding the burn-through according to the standard. The fire test was carried out using ISO2685 standard using a propane-air burner, whereby the propane gas and air serves as the fluid to the system. The universal testing machine of the 100 kN load cell and gun tunnel were used for the mechanical properties test according to each test standard. The fire results showed that three of the FML composites considered in the study are fireproof composites while carbon fibre kenaf reinforced aluminium laminate (CARALL4) is a fire resistant composite. Carbon fibre reinforced aluminium laminate with aluminium alloy at the front and the rear face (CARALL2) withstood higher flame temperature than the other FML composites with 14.4%, 49.0% and 82.8% greater than CARALL1, CARALL3 and CARALL4 in terms of thermal conductivity. In terms of mechanical properties, it was also CARALL2 that has higher tensile, compressive, flexural and impact strength. Therefore, the study showed that carbon fibre flax reinforced aluminium laminate (CARALL3) which is the hybrid composite with green fibre can compete with fibre-metal laminate composites of pure synthetic fibre in terms of their properties.

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Section: Fire Behavioural Test Resultssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Fire behavioural and mechanical properties of carbon fibre reinforced aluminium laminate composites for aero-engine

Mohammed¹,

Talib²,

Sultan³

et al. 2018

IJET

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“…Decomposition of epoxy is observed, which is then followed by char formation and, as the composites are further exposed to the higher temperature, the reinforced fibers react and also decomposed. This forms a char that is later oxidized, which is closely similar to the phenomenon observed in [20]. For the four composites that have been considered in this study, three of them are shown to be fireproof (CAFRALL, CARALL and CF+AA) while CAKRALL is a fire resistant composite.…”

Section: Fig 3 Fibre-metal Laminates On Fire Testsupporting

confidence: 66%

Burn-Through Responses of Aero-Engine Nacelle using Fiber Metal Composites by ISO2685 Propane-Air Burner

Mohammed*,

Talib

2019

IJRTE

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The paper presents experimental investigation on the behavior and burn through responses of a flat plate composite of fiber-metal laminates composites of aluminum alloy 2024-T3 with carbon and natural fibers subjected to environmental conditions in fire designated zone of an aircraft engine exposed to fire. The main purpose of this study is to know the different burn through time responses of different forms of aluminum alloy with synthetic and natural fibers. The composites were designed and developed to improve the flame fire resistance in a fire designated zone of an aircraft engine in near future for prolonged burning through time that will at least withstand the fire flame for 15 minutes according to the ISO 2685 standard. The composites are fabricated by hand lay-up method in a mold of 300 mm x 300 mm and compressed by compression machine. Based on the obtained results, some of the composites are indicated to be fireproof while some others are fire resistant. It is shown that the carbon fiber reinforced aluminum alloy laminate with only aluminum at top and bottom (CF+AA) of the composites can resist more flame temperature than the carbon fiber reinforced aluminum alloy laminate with alternate layers of aluminum and carbon fiber (CARALL) with 7.86%, the sandwich of carbon fiber with flax with 18.2% and the sandwich of carbon fiber with kenaf with 23.43%. In conclusion, the study reveals that aluminum alloy 2024-T3 with carbon fiber and some types of natural fibers composites possess good properties of resisting high temperature of fire designated zone of an aircraft engine nacelle.

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“…Polymers are generally light weight with acceptable mechanical properties but they degrade frequently under high temperature and fire propagation . Thermal stability and flame retardancy of the polymers may be improved by various techniques, particulate reinforcement is one of the famous methods .…”

Section: Introductionmentioning

confidence: 99%

Development of biowaste encapsulated polypropylene composites: Thermal, optical, dielectric, flame retardant, mechanical, and morphological properties

et al. 2015

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Polymer matrix composites have recently gained attraction due to their light weight, low cost, and easy availability, but they are also known for their higher burning rate and low thermal stability. Polypropylene (PP) is one of the most used thermoplastic polymers, its thermal stability and flammability have been modified in this study by incorporation of oyster shell powder (OSP) into PP as a filler. Besides flammability and thermal properties, OSP incorporation has some effects on dielectric and mechanical properties of PP. Effect of concentration of OSP (0-50 wt%) on the properties of OSP/PP composites was studied. The burning rate was observed to decrease while thermal stability was increased as a result of OSP addition into PP. Similarly, relative permittivity (dielectric constant) of OSP/PP composites was found higher than that of pure PP. Flame retardancy, thermal stability, and dielectric properties are functions of OSP concentration. Optical tests including fluorescence spectroscopy and FT-IR were conducted to study any possible interactions between OSP and PP. A slight decrease in the tensile strength was observed. FESEM images revealed that the decrease in tensile strength is a result of interfacial flaws between filler particles and matrix.

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Fire Burnthrough Response of CFRP Aerostructures. Numerical Investigation and Experimental Verification

Cited by 19 publications

References 16 publications

Fire behavioural and mechanical properties of carbon fibre reinforced aluminium laminate composites for aero-engine

Fire behavioural and mechanical properties of carbon fibre reinforced aluminium laminate composites for aero-engine

Burn-Through Responses of Aero-Engine Nacelle using Fiber Metal Composites by ISO2685 Propane-Air Burner

Development of biowaste encapsulated polypropylene composites: Thermal, optical, dielectric, flame retardant, mechanical, and morphological properties

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