Podcast
Questions and Answers
What is the purpose of the selvage edge in a fabric?
What is the purpose of the selvage edge in a fabric?
- To create a diagonal bias
- To prevent edges from unravelling (correct)
- To add strength to the fabric
- To enhance the flexibility of the fabric
Which direction does the bias run in relation to the warp threads?
Which direction does the bias run in relation to the warp threads?
- Horizontally at a 90° angle
- Parallel to the warp threads
- Perpendicular to the warp threads
- Diagonally at a 45° angle (correct)
What is the main characteristic of a unidirectional fabric orientation?
What is the main characteristic of a unidirectional fabric orientation?
- Major fibers running in one direction (correct)
- Major fibers running in both warp and weft directions
- Major fibers running diagonally
- Major fibers running in multiple directions
Why is the weave of the selvage edge different from the body of the fabric?
Why is the weave of the selvage edge different from the body of the fabric?
What allows fabrics to be stretched along the bias?
What allows fabrics to be stretched along the bias?
In composite construction, which fabric style contains major fibers that run in multiple directions?
In composite construction, which fabric style contains major fibers that run in multiple directions?
What type of corrosion can occur when carbon fibre is bonded to aluminium or steel?
What type of corrosion can occur when carbon fibre is bonded to aluminium or steel?
Why do special corrosion-control techniques need to be applied when carbon materials are bonded to aluminium components?
Why do special corrosion-control techniques need to be applied when carbon materials are bonded to aluminium components?
What is the advantage of using carbon-fibre composites in aircraft structural components?
What is the advantage of using carbon-fibre composites in aircraft structural components?
Why are reinforcing bulkheads, ribs, and stringers reduced in number in aircraft designed with carbon-fibre composites?
Why are reinforcing bulkheads, ribs, and stringers reduced in number in aircraft designed with carbon-fibre composites?
At what temperature can ceramic fibres retain most of their strength and flexibility?
At what temperature can ceramic fibres retain most of their strength and flexibility?
How does the compressive strength of carbon fibre compare to Kevlar®?
How does the compressive strength of carbon fibre compare to Kevlar®?
What is the function of the catalyst or hardener in resin matrices?
What is the function of the catalyst or hardener in resin matrices?
Which weave is known for its smooth surface created by long warp yarn floats?
Which weave is known for its smooth surface created by long warp yarn floats?
What is a characteristic feature of twill weaves?
What is a characteristic feature of twill weaves?
Why do companies sometimes refer to composites as fibre-reinforced plastics?
Why do companies sometimes refer to composites as fibre-reinforced plastics?
What would happen if a thermoplastic resin is heated a second time?
What would happen if a thermoplastic resin is heated a second time?
Which weave pattern repeats on three or more warp and fill yarns?
Which weave pattern repeats on three or more warp and fill yarns?
What is the primary function of the matrix in a composite material?
What is the primary function of the matrix in a composite material?
Why were cellulose acetate plastics used in early aircraft windshields?
Why were cellulose acetate plastics used in early aircraft windshields?
Which matrix material is known for being used with fibreglass in early non-structural applications?
Which matrix material is known for being used with fibreglass in early non-structural applications?
What is a distinguishing feature of acrylic plastics used for aircraft windows?
What is a distinguishing feature of acrylic plastics used for aircraft windows?
Why do resin matrices need to be reinforced with other materials for structural applications?
Why do resin matrices need to be reinforced with other materials for structural applications?
What characteristics have been improved in newer matrix materials compared to older ones?
What characteristics have been improved in newer matrix materials compared to older ones?
How are the resin and catalyst initially stored in pre-packaged materials?
How are the resin and catalyst initially stored in pre-packaged materials?
What action is required to allow the resin and catalyst to mix in pre-packaged materials?
What action is required to allow the resin and catalyst to mix in pre-packaged materials?
How is the resin/catalyst mixture blended together in pre-packaged materials?
How is the resin/catalyst mixture blended together in pre-packaged materials?
What is a key advantage of using disposable cartridges for two-component materials?
What is a key advantage of using disposable cartridges for two-component materials?
How are epoxy cartridges prepared for use?
How are epoxy cartridges prepared for use?
What additional item may be attached to an epoxy cartridge after mixing is complete?
What additional item may be attached to an epoxy cartridge after mixing is complete?
