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ANSYS/LS-DYNA Adaptive meshing

  1. Nov 22, 2012 #1
    Hello everybody!
    I have just use Ls-Dyna last week and when I use Adaptive meshing I got that.

    So what are elements the new node belong to 1, 2 or 3. I used type shell 163 - 4 nodes element!
  2. jcsd
  3. Nov 22, 2012 #2
    It's called a hanging node. It's very common to use this in adaptive mesh refinement because you don't need to remesh, you just split an element into 2,3 or 4 smaller elements (in this case, Ansys is always using subdivision into 4 cells).
    Each element has 4 nodes, but not every node needs to border 4 elements.
    The node belongs to element 2 and 3, not to element 0, although element 0 knows that there is a bordering element that has been split in two. You need this of course to calculate the fluxes over the face.
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