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Elastic deformation of a solid body & heat

  1. Feb 8, 2010 #1
    Let' say two steel or rubber disks hit each other
    moving on friction-free surface.
    During the interaction, both disks deform elastically.
    My question is, does part of deforming energy
    gets converted to heat ?
    Why not ? Why this effect is never mentioned ? Is it negligible ?
    I know from experience that if I bend steel wire, it heats in the place where it's bent.

  2. jcsd
  3. Feb 10, 2010 #2
    The effect may be negligible or not. When it is, we call the collision "elastic".
    The effect is mentioned in books, this is not a secret. At least I read about it.
    There is no really 100% elastic collision, only good approximations to one.
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