Illegal geometry

FLAC3D
1

Why the zones above can not deform together with the zones below?

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17373563561461837×583 29.7 KB

1737356372825

2

For whatever reason zones on the top part are not connected to the zones on the bottom. It looks like the top portion of the model is not conformal to the bottom, therefore you should use one of these after create all zones:

  • attach condition via zone attach by-face command
  • create an interface between the top and bottom portions of the model
  • create a zone joint between the top and bottom portions of the model
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