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Finite Element Analysis: PE of an element

  1. Jul 23, 2015 #1
    1. The problem statement, all variables and given/known data
    The potential energy of an element in terms of local displacements q1 and q2 is given by the expression:
    Π = 3(q1^2) - 6q1q2 + 9(q2^2) + 9q1
    Write down the expressions for element stiffness matrix k and element force f.

    I am at a complete loss as to what to do. Please help.
     
  2. jcsd
  3. Jul 28, 2015 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
     
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