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Investigating the Young's Modulus of certain materials

  1. Dec 3, 2009 #1
    I am investigating the Young's Modulus of certain materials and what factors have an effect on the Young's Modulus of materials.

    I am going to be altering the temperature, my hypothesis being that increasing the temperature will lower the E of the materials.

    Are there other factors I could investigate that would have an effect?
     
  2. jcsd
  3. Dec 3, 2009 #2

    Q_Goest

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    Hi calum,
    Yes, increasing temperature will lower E slightly. Conversely, reducing temperature well into the cryogenic range increases E. But it isn't a huge amount. Yield and tensile strength for example, are much more heavily influenced by temperature.

    To answer your question, I don't think there's any other factors that affects E other than temperature.
     
  4. Dec 4, 2009 #3
    Ok thanks for your help. You say E is lowered slightly, do you think it would be possible to observe a measurable change in E using quite standard equiptment?
     
  5. Dec 4, 2009 #4

    Q_Goest

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    Attached is a graph of modulus versus temperature for steel, taken from MIL-HDBK-5. As you can see, the modulus changes, and it should be measurable.
     

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  6. Dec 4, 2009 #5
    That's great thanks, really helpful thanks for your help :)
     
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