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Textile-reinforced
composite materialsDr Muhammad Mushtaq Mangatwww.mushtaqmangat.org
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Composite materials
composite materials are: multiphase materials the phase distribution and geometry are
customized to get specific goals [1]
Materials made by using two or more constituentmaterials having significantly different properties
Resultant product is has different characteristicsfrom the individual components
Components keep their identification
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Textile-reinforced compositematerials
Four types of material used forreinforcement:
metals, polymers, Ceramics
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Composite constituents
gives synergy effect
Matrix
polyester, vinyl esteror epoxy resin
Reinforcement
Materials surroundingby matrix
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FiberglassChopped Strand Mat
Emulsion or Powder Bond
Chopped FiberglassStrands
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Material matrix
Countless matrixes are possible by mixing ofdifferent materials
Reinforce of textile materials is possible byusing: S-glass, R-glass, a wide range of carbon fibres,
boron ,fibres, ceramic fibres, aramid fibres,
It is possible through filaments and staplefibers, disks or plates, spheres or ellipsoids,
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Materials for reinforcement
Wide range of polymers (epoxides,polyesters, nylons, etc,
Metals (aluminium alloys, magnesium alloys,titanium, etc)
Ceramics (SiC, glass ceramics, etc)
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Textile reinforcement
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[1]
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Woven fabric-reinforcedcomposites
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Advantages of wovenreinforcement [1]
Drapability Allowing complex shapes Low cost High resistance to impact damage Better compressive strengths after impact Low stiffness and hardness
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Composite properties depends upon: Type of fiber Weaving parameters Stacking Orientation Yarn twist
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Braided reinforcement
PVC ClearBraided Reinforcement Hose
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Why braiding
To make stronger, stiffer, tougher, moredamage tolerant composite
improve manufacturing efficienciesdramatically
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Braiding
It is a process in whicha pattern formed byintertwining three ormore strands of flexiblematerial such as textile
fibres, wire, or humanhair.
A wide sheet of clothcan be formed byusing two separate,
perpendicular groupsof strands (warp andweft
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Knitted reinforcement [1]
knittingreinforcement is usedto develop net and
mesh
These can adaptcomplex shapes,higher drapability,
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Stitched fabrics [1]
It is a direct approachto improve:
Thickness strength of the
materials
improve their damagetolerance,
More flexibleproduction system
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[1]
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References
[1] Ogin, S.L., Textile-reinforced compositematerials, in Handbook of Technical TextilesA.R. Horrocks, Anand, S. C., Editor 2000,
Woodhead Publishing Ltd Cambridge.