All:
I have done a bunch of searching on google, as well as the list archives.
The results I have found are 3-4 years old, so I thought I would ask this
question, to see if the answer is now different . . .
How does one display strong discontinuities? By "strong", I mean
discontinuities in the field variables themselves (as opposed to the
gradients). The context is that I have an XFEM method (which represents
discontinuities along arbitrary surfaces within elements). For 4-node
quadrilaterals in 2D, I have 4 nodal DOFs for the continuous part of the
solution, and 4 nodal DOFs for the discontinuous part of the solution.
Additionally, I represent the surface of discontinuity using a signed
distance function, which is characterized by 4 nodal DOFs.
It seems like the old school solution is basically to split the elements
which contain the discontinuity into multiple elements, the display the
new "elements", that now have discontinuities along the inter-element
boundaries.
I was just wondering if there is now anything that is more
elegant/natively supported. Thanks.
Cheers,
Neil
======================================================================
Neil Hodge
Ph.D. Candidate
Computational Solid Mechanics Lab
Department of Mechanical Engineering
University of California, Berkeley
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