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Please describe elastic hysteresis in plain English

  1. Jan 6, 2010 #1
    I've tried looking on various websites to find a definition I can understand but every website describes it differently, even the online dictionaries. I have also tried looking in my Y&F University Physics. I just don't <i>understand</i> what elastic hysteresis is because most descriptions don't explain physical processes.

    Thank you.
     
    Last edited: Jan 6, 2010
  2. jcsd
  3. Jan 6, 2010 #2

    clem

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    For a rubber band, "elastic hysteresis" means the the strain vs. stress curve is the same on contraction as it was on extension.
     
  4. Jan 6, 2010 #3
    Nope, that's the opposite.
    Elastic hysteresis is in fact the phenomenon in which the system's prior history, so as to speak, influences the behaviour. For a rubber band, the loading and unloading curves diverge due to hysteresis loss (energy loss in form of heat for example).
    http://www.revisionworld.co.uk/files/strain_33.gif [Broken]
     
    Last edited by a moderator: May 4, 2017
  5. Jan 6, 2010 #4

    clem

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    I guess I misinterpreted the question. In usual terms "elastic" means no loss of energy.
    I still don't know in which sense it was used here.
     
  6. Jan 6, 2010 #5
    Watch this, maybe you'll get a feel for it.

    http://ocw.mit.edu/OcwWeb/Physics/8-02Electricity-and-MagnetismSpring2002/VideoAndCaptions/detail/embed22.htm [Broken]
     
    Last edited by a moderator: May 4, 2017
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