WorksheetsComposite Materials
Total questions: 15
Worksheet time: 9mins
What is the definition of a composite?
Composites are when you weld two or more metals together to form a new type of metal.
Composites are a combination of two or more materials that are bonded together to improve their mechanical or physical properties.
Composites are when you take 2 or more metals and fuse them through melting.
Composites are when you take 2 or more matrix and mix them to create a new material.
What are the properties of Kevlar?
Heavy, incredible strength, low cost
Flexible, elastic, ductile
Waterproof, rigid, low cost
Vibration absorption, incredible strength, abrasion resistance
What does GRP stand for?
Glass rigid plastic
Glued rigid polymer
Glass reinforced polymer
Glass reinforced plastic
Plywood has the following properties...
Resistance to cracking, breaking, shrinking, twisting and warping
Resistance to insects, moisture, mould
Good weight strength ratio, comes in wider board sizes than solid wood, more economical than using expensive solid wood
Heavy and relatively weak, easy to cut and join
What must be used to reinforce concrete when making large structures?
Glass fiber
Epoxy resin
Graphene
Steel reinforcement - steel bars
Why do carbon fiber bicycle frames cost more than aluminum frames?
The carbon fiber and matrix used to join the fibers are very expensive
The equipment is very expensive
The frames are made using multiple pieces of carbon fiber so the process is labor intensive and requires highly skilled workers
Companies have to pay the patent owner a royalty for each frame they make
A more common term for - CFRP, CRP, CFRTP is ...
Carbon Fiber
Construction Fabric
Concrete
Reinforced concrete
Advantages of Carbon fiber are ...
Mass production processes can be used to bring down costs
Low skilled workers to create complex shapes
Cheap to produce complex shapes
Complex shapes can be created that are extremely strong and lightweight
Composites are ______ joined
mechanically
chemically
what is reinforcement
fibers or particles that give the composites strength,stiffness and density
a composite with different sets of properties than its constituent materials
decrease in cracking by distributing stress evenly
fillers added to save money or modify properties
