[Kratos] Problems SolidMechanicsApplication

Mini, Andreas andreas.mini en tum.de
Jue Jun 18 11:05:58 CEST 2015

Dear Stefano,

I just wanted to ask, if you already found a soulution for one of our problems. Does the python skript work that I sent you?



Technische Universität München
Lehrstuhl für Statik
Prof. Dr.-Ing. Kai-Uwe Bletzinger
Arcisstr. 21
80333 München

Tel. +49 (0)89 289 22435
Fax +49 (0)89 289 22421
Andreas.Mini at tum.de
Von: kratos-bounces at listas.cimne.upc.edu <kratos-bounces at listas.cimne.upc.edu> im Auftrag von Stefano Zaghi <zstefano at cimne.upc.edu>
Gesendet: Donnerstag, 11. Juni 2015 14:10
An: andreas.min at tum.de
Cc: kratos; rougered4 at gmail.com
Betreff: [Kratos] Problems SolidMechanicsApplication

Dear Andreas,

 the problem is that you are calling the structural solver multiple times at the same time step.

Probably the Solver, the Strategy or the Scheme are doing something wrong and for this reason the result is not correct.


Stefano Zaghi

Dear colleagues,

I still have some problems with the solid mechanics application. The first one is that the eight node hexaeder elemenent is still not working correctly when using it with the large displacement element.

The second one is also a problem when using the large displacement element with tetrahedra. We are performing a testcase for a co-simulation where in each time step the structure gets a constant load from a dummy fluid. For coupling an Aitken iteration is used. This should converge in the second step for this configuration but it does not and the displacement is decreasing during the iterations. We found out that this has something to do with the restart Solve() function but we are not sure. When using the small displacement element everything works.

Probably one can help us with those problems.

Thank you.


Andreas Mini

Stefano Zaghi

Ph.D. Candidate in Structural Analysis

T.(+34) 93 401 64 73

C/ Gran Capità, s/n, Campus Nord UPC, Ed. C1, Despatx C105

08034 - Barcelona - Spain - www.cimne.com




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