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VIGNESH DHANABALAN Vignesh Dhanabalan - [email protected]

Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

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Page 1: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

VIGNESH DHANABALAN

Vignesh Dhanabalan -

[email protected]

Page 2: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

Safety

Reduce the total weight

Enhance the comfort

and aesthetics

properties

Provide advanced

insulation

Resistance to water, fuels,

extremes of temperature

Easy maintenance

20-50% less weight

Vignesh Dhanabalan -

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Page 3: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

•Nylon tire cord

•Seat belt webbing

•Airbags

•Car body covers

•Seat upholstery/fabric

•Carpets

•Headliners

•Insulation felts (NVH components)

•Sun visors / sun blinds

•Helmets

•Airline disposables

•Dooms

•Rotor blade

•Wings

•Fuel tanks

•Circuit board

•Webbings for aircrafts

•Aircraft upholstery

•Parachutes

•Space shuttles

•Space suits

•ETC

Vignesh Dhanabalan -

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Page 4: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

In 2006, Boeing 787 consisted of 50 % by weight and 80 % by volume carbon fiber- that

was a textile plane

Vignesh Dhanabalan -

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Page 5: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

KEVLAR

GLASS

POLY FIBER

CARBON

BORON FIBER

STEEL

ACRYLIC

NYLON 6 -6,6

POLYESTER

• Polyurethane

• Vinyl ester

• Epoxy

• Phenolic

• PEEK

Vignesh Dhanabalan -

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Page 6: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

Carbon/epoxy (CFRP) – used as a primary structural and skin material.

Kevlar/epoxy – mostly used in military applications, in primary structures and amour

plating.

Glass fibre - used as a structural and skin material (on amateur-built and aircraft).

Glass/phenolic (GFRP) – used in interior fittings, furnishings and structures.

Boron/epoxy – used in composite repair patches, older composite structures.

Poly-Fiber can be rejuvenated after years of weathering. Poly-Fiber is the only all-VINYL

system which bonds extremely well to polyester fabrics and remains flexible when it dries

and does not support combustion

Carbon fiber burn results

Vignesh Dhanabalan -

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Page 7: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

Ram – Radar Absorbent Material

Multistate radar

Lockheed Have Blue technology - evade radar detection - -surface to air missile (SAM) and anit aircraft artillery(AAA)

Automatic target recognition

Bird Of Prey– CAMOUFLAGE

And many more

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Page 8: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

The material had a layered structure and was based on graphite particles and other semi conductive materials embedded in a rubber matrix.

It used a carbon-impregnated plywood that would have made it very stealthy to Britain's primitive radar of the time. It is unknown if the carbon was incorporated for stealth reasons or because of Germany's metal shortage.

A related type of RAM consists of Neoprene polymer sheets with ferrite grains or carbon black particles (containing about 30% of crystalline graphite) embedded in the polymer matrix. The tiles were used on early versions of the F-117A Nighthawk,

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Page 9: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

Rather than smooth aerodynamic lines, Have Blue adopted an angular,

faceted shape to deflect electromagnetic waves and lower its radar

signature.

Aided by a fly-by-wire control system to rectify its aerodynamic instability,

the F-117A Nighthawk, known as the Stealth Fighter.

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Page 10: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

Better deflection is achieved with curved surfaces .

Plastic and Fiber-glass are less reflective or indeed transparent to Radar

Neoprene.

Vignesh Dhanabalan -

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Page 11: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

The load rating for the aircraft tire is 13,000 pounds compared to the automotive tire with 835 pounds

Aircraft tyre is normally inflated 300 psi where the car tyre is inflated to 32 Psi

aircraft tyre 275 mph ,car tyre is rated to 100 mph

A380 maximum takeoff weight: 560 tons

Load on one main landing wheel: 260.68 kN

Tire inflation pressures: 15 and 17 bars

NYLON BASED

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Page 12: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

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Page 13: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

Subjected to Aero dynamic, inertial and

centrifugal forces

Acts to Flap wise, cord wise ,Axial And torsional load.

Air thrust produced varies from 90 N to 569KN

Carbon fiber fatigue failure replaced with Boron fiber

Aluminum alloy, graphite composite, or titanium spar

Aluminum pocket and skin with honeycomb core or

cross-ply fiber glass exterior

Aluminum failing near 40,000 cycles and the

composite blade exceeding 500,000cycles without failure

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Page 14: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

Broken parts of rotor blade can act as projectile and from External impact

woven structure

Material – Ballistic Nylon, Kevlar, glass fiber tape,

metal resin and aromatic polyamides

High coefficient of friction between fiber strands.

Composite layers preferred at 30 degrees

Carbon/epoxy composite structures susceptible

to low-impact damage

Vignesh Dhanabalan -

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Page 15: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

Petro-Shield

U.S. military specification MIL-T-52983D, MIL-T-52983E,

MIL-T-52983F, MIL-T-52983G, ATPD2266 and

MIL-PRF-32233 for fuel tanks.

suitable for carrying kerosene, diesel and fuels with

less than 40% aromatic content.

12 liters per second

Tensile Strength 2000 lb (8.90 KN)Tear Strength 350 lb (1.56 KN)

Puncture Strength 400 lb (1.78 KN)Seam Strength 2000 lb (8.90 KN)

Weight savings about approximately 300 kilogram each flight corresponding in 30 000 EUR

savings for each Boeing 757-200 aircraft per year

Easy store fabric fuel tanks

Vignesh Dhanabalan -

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Page 16: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

The balloon envelopes are made of special

high tenacity fire resistant material called

rip-stop nylon 6.6 fabric with tough ,

durable coatings for heat and air retention

UV ,Heat, Abrasion resistance

Strength, light-weight, Longevity

Vignesh Dhanabalan -

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Page 17: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

Boron/Epoxy composite straps developed by the US Sandia National

Laboratories to repair fatigued cabin and cargo door corners on the L-1011 and

DC10

Lightweight Carpets-Lantal Textiles-880 g/sqm.

An armored cockpit –Dyneema Application Fiber type

Seat cover slit sheet Nylon

Door trim panel padding Polyester

Airbag and headlines Nylon

Trunk cover PVC coated

Interior carpet Nylon

Tire cords PET, glass, nylon-6,

Polyester, etc

Shelf panel cover Polypropylene

Hood panel insulator Glass

Vignesh Dhanabalan -

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Page 18: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

Technical textile-

16.7 million tones

in 2000 with the

value of

US $ 92.88 billions

2010 to 23.77 million

tones worth of US $

127 billions

Vignesh Dhanabalan -

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Page 19: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

The Future of Textile Composites in Aerospace is very high With ever

increasing fuel costs and environmental lobbying, commercial flying is

under sustained pressure to improve performance, and weight reduction is

a key factor in the equation. The aircraft construction business ensures that

any opportunity to reduce operating costs is explored and exploited

wherever possible.

Competition exists in the military too, with continuous pressure to increase

payload and range, flight performance characteristics and 'survivability', not

only of airplanes, but of missiles, too.

Vignesh Dhanabalan -

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Page 20: Textiles In Aircraft by Vignesh Dhanabalan, Published in Asian Textile Journal March 2014

VIGNESH DHANABALAN

12M.TECH13

Vignesh Dhanabalan - [email protected]