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[Getfem-users] Crack SIF calculation

From: Oaks, Aaron Jameson
Subject: [Getfem-users] Crack SIF calculation
Date: Wed, 29 Jul 2015 20:53:57 +0000


I've got a crack set up in an elastic deformation system as in and it looks to be giving me the right answer for the given crack, so I'm looking at getting the crack to propagate. I've been reading over the [XFEM] reference by Moes et al. [1] that propagates the crack by calculating stress intensity factors from interaction integrals, but I'm not sure how to implement these calculations in GetFEM. I saw some work on this was done in contrib/crack_plate/, but it is done in the low level assembly (which I'm not yet familiar with), and contains lines like:
    cerr << __PRETTY_FUNCTION__ << " IS TO BE DONE\n";
    /* too lazy to do it now */
So I'm not sure how much of it is correct, or is compatible with the setup in

Have any had success performing these interaction integral SIF calculations using some form of this contrib/ code, or any other implementation within GetFEM?

Thank you for your time.

Aaron Oaks


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