Elmer Discussion Forum

Hallo, I have a geometry with more than two bodies. I calculate the thermoelastic stresses for this bodies with an anisotropic E-Modulus with different material coordinate unit vectors. Is there a possibility to get the values from the material unit vectors at the boundary between two bodies to calc...

Hi

I am a newbie at the programming of own solvers.
I want to solve an ode which looks like dx/dt = A(t)x(t), x(0)=x_0.
Is there a possibility in elmer to solve this equation or how can I wrote my own solver?

Best regars,
René

Hi, Is there a possibility to get the body_ids for the two adjacent materials from a body-body boundary? I use "ParentElement => BoundaryElement % BoundaryInfo % Left" and then "ParentElement % BodyId". But I get only the body_id for one material. But I need the body_id for the s...

Hallo, I have a muti-body model with more than 100 bodies. Now I would like to join some bodies together. I have a sperate list with the number of this bodies. In the ElmerGrid manual I found the -bulktype option. But this option does not work as desired. Is there an other option or alternative to j...

Hi, I use Debian 6.0 and I updated my Elmer package to the the last debian(unstable) release (elmer (5.5.0.svn.5100.dfsg-1)). Now I have a problem with the solver log. Usual I use Max Output Level = 4. and the output in the solver log is all fine. But now I have to much output e.g. MAIN: -----------...

Hallo,

thank you for your fast answer. I used the legacy format. Now I use the xml vtk format and it works all fine.

René

Hallo, Is it possible to make the youngs modulus(matrix) for anisotropic materials depending on time or temperature? e.g. for density it is clear Density = Variable Temperature MATC "1000*(1-1.0e-4*(tx-273))" But how is it for a matrix? Must I define an udf? And if so, how it looks? Best r...

Hallo, I have a problem with the result output solver in parallel run. I use vtk to see my results in paraview. But when I use the parallel version of elmersolver on an partitioned mesh I am not be able to see the results. Error reading ascii data. Possible mismatch of datasize with declaration. The...

Hallo, Is it right that I can use the Mesh Update Solver to can show, e.g. in ElmerPost, the deformation of a deformed body? I solve my problem in the transient case. My own solver calculate for every node the strain tensor and I want to show this deformation in ElmerPost. I need also the displaceme...

Hi, My first problem: I want calculate some stresses. At first I want to solve the stress equation without any body forces and then I want to solve it with body forces. Is it possible to make this in one sif file with two equations? How must I define the body force that only equation 2 use it? My se...