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Moment of inertia and Stress

  1. May 19, 2009 #1
    Hi..

    Is there any one can explain to me or give a link that explains about condition of using Mass Moment of inertia or Area moment of inertia to Maximum Stress??

    http://en.wikipedia.org/wiki/Mass_moment_of_inertia" [Broken]

    http://en.wikipedia.org/wiki/List_of_area_moments_of_inertia" [Broken]

    As I knows, the stress formula is :
    MaxStress.jpg

    As I knows, generally, I analysis a structure of Beam, etc, I used Area Moment of Inertia. But, I have a case which the knowing data is Mass moment of Inertia.

    Thanks for your helps guys.. :biggrin:
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. May 20, 2009 #2

    tiny-tim

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    Hi ricky_fusion! :wink:
    moment of force = Stress times https://www.physicsforums.com/library.php?do=view_item&itemid=185" per displacement

    moment of force = angular acceleration times mass moment

    I don't understand how you can find the stress from the Mass moment of Inertia ("ordinary" https://www.physicsforums.com/library.php?do=view_item&itemid=31") …

    can you show us this case in which the given data is mass moment? :smile:
     
    Last edited by a moderator: Apr 24, 2017
  4. May 20, 2009 #3
    Last edited by a moderator: Apr 24, 2017
  5. May 20, 2009 #4

    tiny-tim

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    Last edited by a moderator: Apr 24, 2017
  6. May 21, 2009 #5
    Uupss......
    Sorry I forgot to put put the question. :biggrin:
    The question is :
    How much the maximum load should be put, so the beam is not broken?

    Btw,
    Let's continued discussed this thread in here :
    https://www.physicsforums.com/newreply.php?do=newreply&noquote=1&p=2206127" [Broken]

    Thanxs to reply guys.

    Ricky
     
    Last edited by a moderator: May 4, 2017
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