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Which strain tensor is used in Föppl–von Kármán equations?

  1. Feb 25, 2017 #1
    Hi,

    I have a question concerning the von Kármán equations. I want to better understand the compatibility relation. The wikipedia article states that:

    https://en.wikipedia.org/wiki/Föppl–von_Kármán_equations
    "The components of the three-dimensional Lagrangian Green strain tensor are defined as .."

    What follows looks much like the Green-Lagrange strain tensor. But, as I understand the Green-Lagrange strain tensor is used in the total Lagrange formulation and thus not compatible to the Cauchy stress (which is why one would use the 2nd Piola-Kirchhoff stress tensor).

    Is the Green strain tensor as written in Wikipedia different from the Green-Lagrange strain tensor? The wikipedia-Link to finite strain theory didn't help.

    Thanks,
    MarkoA
     
  2. jcsd
  3. Mar 2, 2017 #2
    Thanks for the thread! 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? The more details the better.
     
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