Hi Kathrin,

could you send me the mesh (off-list if needed)?

r.

On 08/30/2017 03:31 PM, Kathrin Sobe wrote:

Hi Robert,

I was able to load a mesh from a nastran .bdf file. The mesh is build of tetrahedrons (nodes: 12593, tetrahedrons: 310106).

When I create the Domain it stops with the following error:

sfepy: warning: bad element orientation, trying to correct... sfepy: warning: bad element orientation, trying to correct...

Traceback (most recent call last): runtime, nodes = tool_displacement() domain = FEDomain('domain', mesh) self.fix_element_orientation() raise RuntimeError('elements cannot be oriented! (%s)' % key) RuntimeError: elements cannot be oriented! (3_4)

What is a correct element orientation for tetrahedral elements? The Nastran file was generated automatically.

Thanks for your help, Kathrin

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