Textile Composites

Textile Composites

Potential Benefits

• Increased automation of manufacturing• Large reduction in part count• Increased through-thickness stiffness,

strength, and fracture toughness

Applications of Braids

AerospaceEngine containment, stator vanes, Horizontal stabilizer

RecreationalWater/snow skis,, hockey sticks

Industrial Auto cross-beams, rollers, air bags

Medicalprosthetic limbs, surgical devices

Ref: www.braider.com

Textile Composites

Woven Braided* Knitted /stitched *

* Poe et al, AIAA-97-1321 Interlacing

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Three-Dimensional Textiles

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Rudov-Clark, Lomov, Zako

Micrograph of a 2x2 Braided Mat

Courtesy: Dr. Ajit Kelkar, North Carolina A&T University

2-D 2x2 biaxial ±q braid 12K tows

+θ-θ

Manufacturing a Textile Preform (Precursor to Composite Part)

Prehistoric Weaving

http://en.wikipedia.org/wiki/File:Prehistoric_weaving.jpg

Weaving in Ancient Egypt

http://en.wikipedia.org

Weaving Machine

Weaving Machine (close-up)

Precursor of Modern Programming

Майский шест (Maypole)

Stepan Lomov, Katholieke Universiteit Leuven

Labor Intensive Braiding

Braider Movie

Braiding machines

Stepan Lomov, Katholieke Universiteit Leuven

Stepan Lomov, Katholieke Universiteit Leuven

Сложная трёхмерная форма деталейоправка

робот управляет движением оправки

Stepan Lomov, Katholieke Universiteit Leuven

Вертолёт NH-90

H.G.S.J. Thuis, J.F.M. Wiggenraad and H.P.J. de Vries

рычаг

плечо шасси

Stepan Lomov, Katholieke Universiteit Leuven

Плетение плеча шасси

вставки:

отверстия под шарниры

Stepan Lomov, Katholieke Universiteit Leuven

Конечно-элементная модель плеча шасси