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Finite Element analysis: Free body diagram help

  1. Apr 9, 2013 #1
    1. The problem statement, all variables and given/known data
    Hey guys, my problem is not really the end solution, but the preliminary step that I'm not too sure about. Given the following diagram:

    attachment.php?attachmentid=57659&stc=1&d=1365485942.jpg

    The image on the left is the given model, and the right image is my nodal element FBD, but somehow i dont believe that's correct. Can you guys help me out with this?

    3. The attempt at a solution

    The question asks to derive the spring constants for the model, but to do that i need to get the diagram above correct.

    Any help you guys can provide is appreciated. Thanks!
     

    Attached Files:

  2. jcsd
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