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A Level DT > Composites > Flashcards

Composites Flashcards

1
Q

What is a composite?

A

A material comprised of two or more different materials, resulting in a material with enhanced properties
Made up of a matrix and fibre

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2
Q

Name 8 composites

A

CFRP
GRP
Tungsten carbide
Aluminium composite board
Concrete
Reinforced concrete
Fibre cement
Engineered wood

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3
Q

Properties of CFRP?

A

Lightweight
Corrosion resistant
Tough
Hard
Good compressive strength
Low thermal expansion

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4
Q

Uses of CFRP?

A

Sports equipment
Tennis racquets
Racing car bodies and parts
Helmets

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5
Q

Properties of GRP?

A

Lightweight
Corrosion resistant
Tough
Hard
Low thermal expansion
Good compressive strength

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6
Q

Uses of GRP?

A

Boat hulls
Kayak shells
Sports car bodies
Train locomotives

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7
Q

Compare CFRP AND GRP

A

-CFRP is lighter and has a higher strength to weight ratio
-GRP is cheaper
-CFRP is more stable in extreme temperatures
-CFRP is more rigid
-CFRP has a higher tensile strength

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8
Q

Properties of tungsten carbide?

A

Hard
Tough
Resistant to high temps
Corrosion resistant

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9
Q

Uses of tungsten carbide?

A

Cutting tools
Drill bits
Lathe tools
Router bits
Kitchen knives

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10
Q

What is an aluminium composite board made up of?

A

Aluminium sheets with a polyethylene core

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11
Q

Properties of aluminium composite board?

A

Lightweight
Rigid
Tough
Malleable
Good thermal and sound insulation
Good vibration damping

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12
Q

Uses of aluminium composite board.

A

Sound proofing cars and buildings
Signage

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13
Q

Properties of concrete?

A

High compressive strength
Easy to mould
Few surface defects

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14
Q

Uses of concrete?

A

Pathways
Beams
Foundations

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15
Q

What makes up reinforced concrete?

A

Cement powder, sand, aggregate particles and low carbon steel rods

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16
Q

Properties of reinforced concrete?

A

High compressive strength
High tensile strength
Few surface defects
Fire resistant
Consistency across the structure

17
Q

Uses of reinforced concrete?

A

Buildings
Bridges
Walls

18
Q

What makes up fibre cement?

A

Cement powder, sand, aggregate particles and polymer or steel fibres

19
Q

Properties of fibre cement?

A

Lighter in weight than reinforced concrete
Good at low temperatures

20
Q

Uses of fibre cement?

A

Suspended floors
Complex geometric shapes

21
Q

What makes up engineered wood?

A

Timber laminates and MF adhesive

22
Q

Properties of engineered wood?

A

More lightweight than concrete
Natural aesthetic
Corrosion proof
Good structural stability

23
Q

Uses of engineered wood?

A

Beams
Bridges
Domes
Arches
Decking

A Level DT (16 decks)

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