Stress and Strain diagrams
  • To find the properties of some materials, a tension test is performed.
  • This is a test where a load is applied to a sample of the material and the extension is measured.
  • From the information produced by the test, we are able to draw a stress and strain diagram.
  • As shown, we can obtain many information from a stress and strain curve:
    • Young's modulus
    • Elastic limit
    • Yield Stress
    • Ultimate stress
    • Breaking stress
    • Resilience
    • Ductility
    • Toughness
    • Elongation
    • Brittleness
  • Most of these will be explained in the next few points: