Thank you very much for those information. If this involves MOOSE, I think
I should bring Dmitry in :-)
It seems both LibMesh and MOOSE are working to implement xfem on fracture
problems. Is this for dynamic cracks or just static ones? How about the
weak discontinuity problems, for example, material interfaces.
To Ben Spence:
What does 'partial element' mean? is it the element cut by the
discontinuites or the sub-triangles after division for integration purpose?
Typically, numerical quadrature in those elements requires a nonlinear
mapping of quad points between two reference coordinates. One of the
possible ways to avoid nonlinear mapping is to use rational basis (shape
function).
On the other hand, how do you handle the hanging nodes for AMR in xfem? Any
problem?
Xujun
On Fri, Nov 21, 2014 at 1:43 PM, Kirk, Benjamin (JSC-EG311) <
benjamin.k...@nasa.gov> wrote:
> I'm curious if you've had any issues relating to integrating over
> discontinuities, as that's the first & only thing I've taken a stab at.
>
> As for the old dof indices bit, I'd be happy to participate in that
> discussion, especially if you can create the problem with a minimal example.
>
> -Ben
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