Aerospace Engineering Composites

Question 1

What is FRP stand for?

Answer 1

Fiber-reinforced plastics

Question 2

What are composite materials?

Answer 2

Essentially a combinations of two ore more dissimilar materials that are used together in order to combine best properties, or impart a new set of characteristics that neither of the constituent materials could achieve on their own.

Question 3

What does the aerospace industry use composites?

Answer 3

To exploit the specific strength and stiffness properties of composites in terms of lightweight structural design.

Also laminated nature of high performance composite materials enables the designer to tailor optimum mechanical properties by originating the fiber direction with the primary load paths

Question 4

What are the advantages of fiber reinforced plastics?

Answer 4

Ease to manufacture complex shapes

Excellent fatigue and corrosion resistance.

Question 5

Composites can be made with very high translucency to ______ ________.

Answer 5

electromagnetic radiation

Question 6

Electrical conductivity of composites are generally ____.

Answer 6

low

Question 7

_____ _____ is often integrated in aerospace laminates to protect against lightning strike damage.

Answer 7

copper mesh

Question 8

Direct contact between ____ _____ _______ plastics and _____ components will corrode the aluminum over time.

Answer 8

carbon fiber reinforced plastics and aluminum components

Question 9

All ____ pick up water and their properties change as a result of this.

Answer 9

resins

Question 10

______ are not very resistant to mechanical wear effects.

Answer 10

composites; external surfaces may need treatment prior to painting

Question 11

composites tend to have relatively ____ stiffness on an absolute basis, from 10% to 60% of steel.

Answer 11

low

Question 12

Composites will absorb ______ _____ by damage modes rather than local plastic deformation.

Answer 12

impact energy