Search found 11 matches

by Oldbelt
18 Jan 2019, 02:24
Forum: Installation & compilation
Topic: Simpel one end fixed beam force in other end
Replies: 11
Views: 3418

Re: Simpel one end fixed beam force in other end

Hi Matthis.
I f you look at MySif file you can see the scaling 0.001 and the Picture: My Beam.jpeg
show the dimensions is m.
The figures is wrong the correct is 0.065 m or if the scaling is missing 65 mm or 6.5 cm.

Kr. Oldbelt.
by Oldbelt
17 Jan 2019, 12:49
Forum: Installation & compilation
Topic: Simpel one end fixed beam force in other end
Replies: 11
Views: 3418

Re: Simpel one end fixed beam force in other end

Hi Matthias. Thank you for your time. Summery shows a big difference in amount of nodes ect. How to judge in the situation with a new task, the needed amount of nodes ect ? My Beam Summery.zip . I am new and used this toturial to get a feeling with ELMER because textbook exsamples from UNI is at han...
by Oldbelt
16 Jan 2019, 16:23
Forum: Installation & compilation
Topic: Simpel one end fixed beam force in other end
Replies: 11
Views: 3418

Re: Simpel one end fixed beam force in other end

Loaded Beam Oldbelt.zip Hej Matthias. I have run the beam with my beam and Toturial3D beam. The results is in the Zip file. Comparing SIF show no difference. Comparing VTU shows great differences. The scren dumps show the correct textbook result from toturial 3D beam. I think it's something about t...
by Oldbelt
15 Jan 2019, 00:34
Forum: Installation & compilation
Topic: Simpel one end fixed beam force in other end
Replies: 11
Views: 3418

Re: Simpel one end fixed beam force in other end

Hi Matthias. I have downloaded the tutorial 3Dbeam. and got the right result a deflection at 0.065m. It isn't a matter of scaling because check of dimensions can be done in paraview, I had m. as dimension. It seams to be a matter of meshing, my design out of my CAD was meshed with triangles, the res...
by Oldbelt
13 Jan 2019, 23:32
Forum: ElmerPost
Topic: Displacement and tensions value in a elastic beam
Replies: 6
Views: 11554

Re: Displacement and tensions value in a elastic beam

Vespa
Your Formula is faulty :
<Displacement_y = Force * length^3 / (8 * Youngs_Modulus * I)>
You divide with 8 it should be 3
Displacement_y = Force * length^3 / (3 * Youngs_Modulus * I)

Multiplying your result : 8/3 gives the 0.064m.
by Oldbelt
12 Jan 2019, 01:47
Forum: Installation & compilation
Topic: Simpel one end fixed beam force in other end
Replies: 11
Views: 3418

Re: Simpel one end fixed beam force in other end

Hej Matthias. Tank you for your reply. My CAD model is in m. My CAD export to .stp is set to m. You are righ the meshed Beam loaded into Paraview is in mm. I thought this faulure was corrected since the former edition of Elmer. Setting the scale to 0.001 gives still a wrong result, insted af 8.2 m a...
by Oldbelt
11 Jan 2019, 18:12
Forum: Installation & compilation
Topic: Simpel one end fixed beam force in other end
Replies: 11
Views: 3418

Simpel one end fixed beam force in other end

I have tried to simulate a beam X =1 Z= 0.1 Y= 0.05 m. one end fixed the other have a force at 2000 N in -Y direction. Material pine Youngs M 10e9 . Text book calc. gives a result at 0,065m displament. Elmer 8.2m!!. Can any one help to set a proper Equation up for this very simple case, I am newbee....
by Oldbelt
28 Dec 2018, 16:43
Forum: Installation & compilation
Topic: How to install
Replies: 8
Views: 3075

Re: How to install

I have Paraview runnung and try it out with a simple beam 1m x 0.1m x 0.05 m just as the tutorial no 3. I made the beam in Alibre as I have done severel times with the old Elmer. Output a .stl file. I follow the set up from the toturial no 3. It's a beam fully constrained in one end. I get a non use...
by Oldbelt
27 Dec 2018, 13:07
Forum: Installation & compilation
Topic: How to install
Replies: 8
Views: 3075

Re: How to install

Hi Matthias. Yes I have a file <case001.vtu> in my result folder. At the Run dropdown list I have a Paraview button with a striped color icon, but nothing happens. By the way the iteration window is'nt shown, but sometimes shown but witout the red line showing the Progress. In command line elmer wri...
by Oldbelt
26 Dec 2018, 14:32
Forum: Installation & compilation
Topic: How to install
Replies: 8
Views: 3075

Re: How to install

Hello raback. Thanks for your quick reply, but a can't understand it. I download the newest Elmer and install, there is a Post.exe file!! Why is it obsolute. Gui run, I can load a simpel beam, set it with material, bounderies and a force. Run Sif get a file. Save the project. Run solver, but the ite...