Foam modeling in ABAQUS inp

[Jeongdae11]

Hello, I'm using Neper version 4.4.0 to build microstructure of foam structure.
To do it, I am generating tessellation and meshing with the following commands :

export OMP_NUM_THREADS=1
neper -T-n from_morpho -morpho “diameq:lognoermal(0.1,0.03),1-sphericity:lognormal(0.145,0.03)”
neper -V nfrom_morpho-id1.tess -print Image_1
neper -M nfrom_morpho-id1.tess -elttype quad -format inp

with that commands, i opened inp file as follows:

However, what i want to make is as follows:

Reflecting characteristic of foam structure, I want to make pore structure. However, I am beginner of Neper and need help....

Thank you very much for your help!

[rquey]

You have to mesh into tet elements (the default) instead of quad elements:

 neper -T -n 500 -reg 1
 neper -M n500-id1.tess -dim 2 -rcl 0.6
 neper -V n500-id1.tess -datacelltrs 0.5 -print img1
 neper -V n500-id1.tess,n500-id1.msh -showelset2d "domtype!=2" -dataelset2dcol lightblue -dataelt2dedgerad 0.002 -print img2

[ap264]

I have question here.

here in -M module, you are using -dim 2. I would like to know the purpose of this. If i can take a guess, does it help the user in generating 2d mesh elements?

[ap264]

Hi
If you don't mind, i have another question.

After using this type of mesh, I have exported it to Abaqus. After running an analysis in abaqus, i get an error saying some elements have zero, small or negative area. the total number of these elements are 24375. Can you help me rectify this error?

Thank you

[rquey]

I have question here.

here in -M module, you are using -dim 2. I would like to know the purpose of this. If i can take a guess, does it help the user in generating 2d mesh elements?

Yes, -dim 2 asks for a 2D mesh.

After using this type of mesh, I have exported it to Abaqus. After running an analysis in abaqus, i get an error saying some elements have zero, small or negative area. the total number of these elements are 24375. Can you help me rectify this error?

I have no real clue about this. Some elements may have a small area, but none have a zero or a negative area...

[sg88888]

Hello, how did you delete only one face

[sg88888]

Hello doctor, I want to generate a 3D mesh, I changed DIM 2 to DIM 3, why can't I run it, how can I modify it