2. Materials (Composites)

Question 1

Give the 3 main composites?

Answer 1

Glass Reinforced Plastic (GRP)
Kevlar
Carbon Fibre Reinforce Polymer (CFRP)

Question 2

Give 3 advs of Grp?

Answer 2

1. Cheaper than other composites
2. Lightweight
3. Corrosion resistent

Question 3

Give 2 disadvs of GRP?

Answer 3

1. Brittle
2. Hard to repair

Question 4

Where will GRP be used?

Answer 4

Hockey sticks or boat hulls

Question 5

Give 3 advs of Kevlar?

Answer 5

1. Strong tensile strength
2. Tough
3. Hard

Question 6

Give 2 disadvs of Kevlar?

Answer 6

1. Can be toxic if improperly used
2. Non biodegradable

Question 7

Where can Kevlar be used?

Answer 7

Bulletproof vests

Question 8

Give 3 advs of CFRP?

Answer 8

1. High strength to weight ration
2. Corrosion resistent
3. High temperature resistent

Question 9

Give 2 disadvs of CFRP?

Answer 9

1. Higher cost
2. Not tough

Question 10

Where can CFRP be used?

Answer 10

Motorsport or sports gear

Question 11

What can CFRP add to a material or object?

Answer 11

Stiffness