Materials scienceLesson 1 of 1 in the course Composites and mechanical behaviour

Composite Materials: Structure, Manufacturing, Properties, and Failure

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

Save course
Lesson progress
0 / 5

Your progress is kept in this browser only.Sign up to save it

Summary

Composite materials are built by combining distinct materials so the finished material has useful properties that its constituents do not provide on their own. This lesson introduces the defining features, basic structure, and history of composites.

A composite material is made from two or more constituent materials with notably different physical or chemical properties. They are combined to produce a material with properties unlike those of the separate constituents. In the finished composite, the constituents remain distinct rather than dissolving into one uniform phase. This distinguishes composites from many mixtures and solid solutions.

All flashcards

What does anisotropic mean when describing a composite?
A property such as stiffness or strength depends on the direction in which it is measured.
How does a sandwich-structured composite achieve high bending stiffness with low mass?
Its lightweight core separates two stiff outer skins.
What is delamination in a composite laminate?
Separation at the interface between laminate layers.
What is non-destructive testing (NDT) used for in composite manufacturing?
Inspecting a part for defects without deliberately damaging it.
What is a robotic material?
A composite incorporating functions such as sensing, actuation, computation, and communication.

Quiz questions

  1. What does anisotropic behaviour mean for a fibre composite?Answer: A property can vary with the direction in which it is measured.
  2. Why can a sandwich-structured composite have high bending stiffness without a large increase in mass?Answer: A lightweight core separates two stiff outer skins.
  3. How does a thermoset matrix generally harden during composite fabrication?Answer: Through a chemical curing reaction.
  4. Which fibre orientation is commonly selected to resist torsional loading?Answer: Fibres aligned at approximately ±45∘\pm45^\circ.
  5. What is the purpose of non-destructive testing on a composite part?Answer: To inspect for defects without deliberately damaging the part.

Based on the Wikipedia article Composite material, licensed CC BY-SA 4.0. Adapted into a summary, flashcards and quizzes.

More in Materials science

All Materials science lessons
Materials scienceCeramic Engineering: Processing, Microstructure, Composites, and Applications5 flashcards · 5 quiz questions · 4 gamesPlay free →Materials sciencePolymerization Mechanisms, Heat Control, and Photopolymerization5 flashcards · 5 quiz questions · 4 gamesPlay free →Materials scienceSteel: Composition, Processing, Microstructure, History, and Sustainability5 flashcards · 5 quiz questions · 4 gamesPlay free →Materials sciencePolymer Structure, Synthesis, Properties, and Applications5 flashcards · 5 quiz questions · 4 gamesPlay free →