Podcast
Questions and Answers
What type of fabric has no fill fibers and is held together by small cross threads?
What type of fabric has no fill fibers and is held together by small cross threads?
Which type of fabric usually has more strength in the warp direction?
Which type of fabric usually has more strength in the warp direction?
What aspect makes plain weave fabrics different from satin weave fabrics?
What aspect makes plain weave fabrics different from satin weave fabrics?
Which type of weave pattern involves warp and fill yarns interlacing over and under each other?
Which type of weave pattern involves warp and fill yarns interlacing over and under each other?
Signup and view all the answers
What characteristic is a key advantage of woven fabrics over unidirectional materials?
What characteristic is a key advantage of woven fabrics over unidirectional materials?
Signup and view all the answers
What is the main purpose of cross threads in unidirectional fabrics?
What is the main purpose of cross threads in unidirectional fabrics?
Signup and view all the answers
What is a notable characteristic of a satin weave?
What is a notable characteristic of a satin weave?
Signup and view all the answers
Which type of weave is characterized by a distinctive diagonal line on the fabric's surface?
Which type of weave is characterized by a distinctive diagonal line on the fabric's surface?
Signup and view all the answers
What type of yarn repeats on three or more warp and fill yarns in a twill weave?
What type of yarn repeats on three or more warp and fill yarns in a twill weave?
Signup and view all the answers
What does the matrix do in composite materials?
What does the matrix do in composite materials?
Signup and view all the answers
Why were old polyester/fiberglass formulas deemed insufficient for fabricating primary structural members?
Why were old polyester/fiberglass formulas deemed insufficient for fabricating primary structural members?
Signup and view all the answers
What characteristic of newer matrix materials makes them suitable for aircraft applications?
What characteristic of newer matrix materials makes them suitable for aircraft applications?
Signup and view all the answers
What is a major concern when drilling Aramid material?
What is a major concern when drilling Aramid material?
Signup and view all the answers
Why is carbon fiber more susceptible to promoting galvanic corrosion when bonded to aluminum or steel?
Why is carbon fiber more susceptible to promoting galvanic corrosion when bonded to aluminum or steel?
Signup and view all the answers
Why are carbon materials kept separate from aluminum components?
Why are carbon materials kept separate from aluminum components?
Signup and view all the answers
Which material retains most of its strength and flexibility at temperatures up to 1200 °C?
Which material retains most of its strength and flexibility at temperatures up to 1200 °C?
Signup and view all the answers
What is a key advantage of using carbon-fiber composites for aircraft structural components?
What is a key advantage of using carbon-fiber composites for aircraft structural components?
Signup and view all the answers
How does the compressive strength of carbon fiber compare to that of Kevlar®?
How does the compressive strength of carbon fiber compare to that of Kevlar®?
Signup and view all the answers
What two components make up resin matrices?
What two components make up resin matrices?
Signup and view all the answers
How are resin matrix systems often referred to by some companies?
How are resin matrix systems often referred to by some companies?
Signup and view all the answers
What do thermoplastic resins use to form the part into the desired shape?
What do thermoplastic resins use to form the part into the desired shape?
Signup and view all the answers
What happens when a thermoplastic material is heated a second time?
What happens when a thermoplastic material is heated a second time?
Signup and view all the answers
Which transparent thermoplastic material was commonly used in early aircrafts due to its transparency and light weight?
Which transparent thermoplastic material was commonly used in early aircrafts due to its transparency and light weight?
Signup and view all the answers
Why has cellulose acetate plastic almost completely been replaced in aircraft applications?
Why has cellulose acetate plastic almost completely been replaced in aircraft applications?
Signup and view all the answers
What is one of the disadvantages of working with pre-preg fabrics in a maintenance facility?
What is one of the disadvantages of working with pre-preg fabrics in a maintenance facility?
Signup and view all the answers
Why should bags containing pre-preg material be opened only in a controlled environment?
Why should bags containing pre-preg material be opened only in a controlled environment?
Signup and view all the answers
What effect does room temperature have on pre-pregs if they are not stored in a freezer?
What effect does room temperature have on pre-pregs if they are not stored in a freezer?
Signup and view all the answers
Why are thixotropic agents added to resins?
Why are thixotropic agents added to resins?
Signup and view all the answers
What happens if pre-preg material exceeds its shelf life?
What happens if pre-preg material exceeds its shelf life?
Signup and view all the answers
What is the purpose of fillers (thixotropic agents) in resins?
What is the purpose of fillers (thixotropic agents) in resins?
Signup and view all the answers
