Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Elastic deformation is time-indipendent

  1. Dec 4, 2016 #1
  2. jcsd
  3. Dec 4, 2016 #2

    Mapes

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Elastic deformation (which is an idealization of actual behavior) is instantaneous. That is, it occurs immediately upon application of the load and is unchanged thereafter. In that sense, it is independent of time.
     
  4. Dec 4, 2016 #3

    Bystander

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    See "creep."
     
  5. Dec 4, 2016 #4

    Mapes

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Creep (i.e., permanent or plastic deformation over relatively long time scales) excludes elastic deformation but is one component of how all real materials actually behave.
     
  6. Dec 4, 2016 #5

    Nidum

    User Avatar
    Science Advisor
    Gold Member

    Elastic deformation is proportional to applied load . The final deformation only depends on the final load . Within some practical limits it does not matter how fast or how slow the load is applied - the final deformation will always be the same if the final load is the same . Elastic deformation is therefore time independent .

    Creep is gradual continually increasing permanent deformation without increase of the applied load . A common problem with special aerospace alloys working at higher stress levels and higher temperatures .
     
    Last edited: Dec 4, 2016
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Elastic deformation is time-indipendent
  1. Help on DEFORMATION (Replies: 3)

  2. Waves vs. deformation (Replies: 2)

Loading...