Composites

Question 1

Ch
Def
What they used for
How they modelled

Answer 1

A material comprised of 2 or more different dimensions
Moulded with layup method
Useful for sports equipment

Question 2

Main
CFRP
GRP

Answer 2

Both are:
Lightweight, corrosion resistant, hard, tough, good compressive strength, low thermal expansion

CFRP - car bodies, helmets, fishing rods, tennis racquets, bicycle frame

GRP - boat hulls, kayak shells, train cabs, sports car body parts

Question 3

Secondary
Tungsten carbide
Aluminium composite board
Concrete

Answer 3

Tungsten carbide - cutting tools eg drill bits, knives, router bits
Hard tough, resistant to high temps, corrosion resistant

Aluminium composite board - sound proofing panels in cars, buildings and boats, signage
Lightweight, rigid, tough, good vibration damping, good thermal and sound insulation, malleable

Concrete - pathways, beams, blocks, house foundations
High compressive strength, low tensile strength, easy to mould, few surface defects

Question 4

Secondary
Reinforced concrete
Fibres cement
Engineered wood (glulam, glued laminated timber)

Answer 4

Reinforced concrete - buildings, bridge spans, retaining walls
High compressive & high tensile strength, consistency across structure, few surface defects, fire resistant

Fibres cement - suspended floors, complex geometric shapes, pathways
Lighter than reinforced concrete, hard tough, good at low temperatures and in freeze/thaw situations

Engineered wood (glulam, glued laminated timber) - beams, bridges, arches, decking, roof beams, rafters
Good aesthetics, more lightweight than concrete alternatives, fire resistant, natural alternative to reinforced concrete, good structural stability, corrosion proof
(Made of timber laminates and MF adhesive)