Composite Materials in Aerospace Industry
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What are the two main types of man-made composite materials mentioned in the text?

  • Fuselage and wing materials for commercial airliners
  • Aluminum alloy and polymer matrix
  • Carbon-fiber-reinforced plastic and glass-fiber-reinforced plastic (correct)
  • Stiff and strong fibers in a tough polymer matrix
  • What is the key property of the fibers used in CFRP and GFRP according to the text?

  • They are stiff and strong for their density (correct)
  • They are brittle
  • They are tough but neither stiff nor strong
  • They are lightweight
  • What is the key property of the polymer matrix used in CFRP and GFRP according to the text?

  • It is lightweight
  • It is tough but neither stiff nor strong (correct)
  • It is stiff and strong
  • It is brittle
  • Which material is mentioned as the most used for the fuselage, wing, and supporting structures of many commercial airliners and military aircraft built before the year 2000?

    <p>High-strength aluminum alloy</p> Signup and view all the answers

    What is the characteristic of the polymer matrix used in CFRP and GFRP according to the text?

    <p>Tough but not stiff or strong</p> Signup and view all the answers

    Which of the following materials is mentioned as being used for the fuselage, wing, and supporting structures of many commercial airliners and military aircraft built before the year 2000?

    <p>High-strength aluminum alloy</p> Signup and view all the answers

    What is the key property of the carbon and glass fibers used in CFRP and GFRP according to the text?

    <p>Stiff and strong (for their density)</p> Signup and view all the answers

    Which of the following is not a man-made composite material mentioned in the text?

    <p>Kevlar-reinforced plastic</p> Signup and view all the answers

    What is the primary characteristic of the polymer matrix used in CFRP and GFRP?

    <p>Tough but neither stiff nor strong</p> Signup and view all the answers

    What is a key advantage of using aluminum alloys in aircraft structures?

    <p>Reduced weight</p> Signup and view all the answers

    Which of the following properties of aluminum makes it suitable for electrical conductors in aircraft?

    <p>High electrical conductivity</p> Signup and view all the answers

    What is a key benefit of the formability of aluminum alloys for aircraft structures?

    <p>Easier to machine complex shapes</p> Signup and view all the answers

    Which of the following is NOT a reason why aluminum alloys are a popular choice for aircraft structures?

    <p>Poor electrical conductivity</p> Signup and view all the answers

    How do aluminum alloys contribute to the overall weight reduction of aircraft?

    <p>Lower density compared to other metals</p> Signup and view all the answers

    What is a key factor that makes aluminum alloys suitable for aircraft structures?

    <p>High strength-to-weight ratio</p> Signup and view all the answers

    Which aluminum alloy is ideal for framework due to its machinability and strength but lacks corrosion resistance?

    <p>Alloy 2014</p> Signup and view all the answers

    Which aluminum alloy is commonly used for aircraft fuel tanks due to its non-heat treatable nature, high fatigue strength, and good corrosion resistance?

    <p>Alloy 3003</p> Signup and view all the answers

    Which aluminum alloy is workable with excellent corrosion resistance, weldable and brazable, making it commonly used for wings or fuselage?

    <p>Alloy 6061</p> Signup and view all the answers

    Which aluminum alloy is ideal for anodizing applications or architectural structures due to its high tensile properties and high corrosion resistance, often used for aesthetic purposes and finishes?

    <p>Alloy 6063</p> Signup and view all the answers

    Which aluminum alloy is one of the strongest available for aerospace applications, offering excellent strength-to-weight ratio and the ability to be heat-treated?

    <p>Alloy 7068</p> Signup and view all the answers

    Which aluminum alloy is widely used in aircraft and aerospace components, providing stress resistance, high-tensile strength, and capable of heat treatment?

    <p>Alloy 2024</p> Signup and view all the answers

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