Properties

• What is the focus of design engineering?

  Problem solving through engineering and design
• What does design engineering apply to achieve a functioning product?

  Scientific and mathematical understanding
• Why is mild steel suitable for BMX bike frames?

  It is lightweight, stiff, and durable
• How does carbon fibre differ from mild steel for bike frames?

  Carbon fibre has a better strength-to-weight ratio
• What is a disadvantage of using carbon fibre for bike frames?

  It requires a costly and skilled manufacturing process
• In what context does the choice of material for bicycles change?

  Based on the type of cycling performance
• What are the properties of mild steel for BMX bikes?

  • Relatively lightweight
  • Stiff
  • Durable
  • Widely available
  • Repairable and modifiable
• What are the properties of carbon fibre for performance cycling?

  • Better strength-to-weight ratio than steel
  • Extremely stiff
  • Mouldable into aerodynamic shapes
  • Reinforced at various thicknesses
• What are the advantages and disadvantages of using carbon fibre for bike frames?

  Advantages:

  • Lightweight
  • Strong and stiff
  • Aerodynamic design

  
  

  Disadvantages:

  • Costly manufacturing
  • Difficult to repair