[Gmsh] Calculate principal stresses

Christophe Geuzaine cgeuzaine at ulg.ac.be
Sun Jan 10 16:00:23 CET 2010

On 06/01/10 10:56, Billy Araujo wrote:
> Anyone know how I can calculate principal stresses s1, s2 and s3 from
> stress tensor using gmsh?
> I saw there was a request for a plugin to do that. Was it implemented?

Yes: the principal stresses are the eigenvalues of the stress tensor, so 
you can use Plugin(Eigenvalues) to compute them. If you also need the 
principal directions, use Plugin(Eigenvectors).

> Regards,
> Billy.
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Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science