Week 8-Challenge

MODEL 01:

AIM:

To do 3D Meshing of the given components.

with Elements sizes: Min- 2mm, Target- 5mm, Max- 7mm

Tet collapse: 0.15

CAD MODEL:

The two components inside the model are:

PROCEDURE:

STEP 1: geometry cleanup.

The geometry cleanup of the model is done using quick edit option in geom.

here i toggle some lines which may cause min element length error . inorder to avoid this error we toggle some lines and remove some points.

STEP 2: CREATING 2D SHELL ELEMENTS:

• Inorder to cleate 2d shell elements 2D> automesh> select suface and give to mesh in trias.
• by going prefeference > crieteria file settings i untick all other parametre other than min and max length in 2D.
• by selecting surface by surface i created 2d shell elements in entire 2w0 components.
• here some of the elements got failed in min and max error
• this errors are cleared by remeshing the elemements and split the surface
• the quard formed by splitting surface is removed by remeshing the elements by selecting elements in by config quad4 .
• here i got cleared all min and max error.

STEP 3: CONVERT TO 3D TETRA MESH.

• To convert to 3d tetra elements
• first i go preference > crieteria file settings> 3d> here i give the tetcolapse value as .15 and aplly it and click ok
• then i took 3d> tetramesh parametre > given max and min size> tick fill void, fill midnodes, smoothing and given tetcolapse value.
• then i go to tetra mesh and select the elements and click mesh.
• then i mask some elements and check weather the terta mesh is formed. and i got the tetra mesh.
• 
• then i go to f10 to check the tetcollapse. and the tetcollapse formed is cleared by tertra remesh and transalate option by masking only the failed elements
• then i got a perfect tetra mesh with zero tetcollapse.

FINAL MODEL:

RESULT:

Done 3D Meshing of the given components.

with Elements sizes: Min- 2mm, Target- 5mm, Max- 7mm

Tet collapse: 0.15

MODEL 02:

AIM:

To do 3D Meshing of the given components.

with Elements Target length- 6mm

Tet collapse: 0.15

CAD MODEL:

PROCEDURE:

STEP 1: CREATING 2D SHELL ELEMENTS:

• Inorder to cleate 2d shell elements 2D> automesh> select suface and give to mesh in trias.
• by going prefeference > crieteria file settings i untick all other parametre
• by selecting surface by surface i created 2d shell elements in entire components.

STEP 2: CONVERT TO 3D TETRA MESH.

• To convert to 3d tetra elements
• first i go preference > crieteria file settings> 3d> here i give the tetcolapse value as .15 and aplly it and click ok
• then i took 3d> tetramesh parametre > tick fill void, fill midnodes, smoothing and given tetcolapse value.
• then i go to tetra mesh and select the elements and click mesh.
• then i mask some elements and check weather the terta mesh is formed. and i got the tetra mesh.

• then i go to f10 > 3D to check the tetcollapse. and the tetcollapse formed is cleared by tertra remesh and transalate option by masking only the failed elements
• then i got a perfect tetra mesh with zero tetcollapse.

FINAL MODEL:

RESULT:

Done 3D Meshing of the given components.

with Elements Target size- 6mm

Tet collapse: 0.15

MODEL 03:

AIM:

To do 3D Meshing of the given components.

with Elements Target length- 6mm

Tet collapse: 0.15

CAD MODEL:

The 4 components in this are:

PROCEDURE:

STEP 1: TO VOLUME TETRA MESH.

• To do volume tetra mesh i go 3d> tetra mesh>tetra parametre.
• tick fill void, fill midnodes, smoothing and given tetcolapse value.
• then i go to volume tetra nd selected entire surface as it include solid.
• then i got tetra mesh in entire component
• then i mask some element and check weather it is tetra meshed.

STEP 2: REMOVE TET COLLAPSE:

• To check the tetcollapse i go f10> 3d> click on tet collapse . and can see the tet collapse.
• the tetcollapse is removed by tetra remesh by giving tetra parametra and tetraremesh and selecting the elements and click remesh.
• by repetedly remeshing the failed elements the number of tet collapse got redused .
• and the last few tetcollapse is removed manualy
• by using translate option in shift f4.
• and also by replace option for few element which is too small
• and then i got zero tet collapse

FINAL MODEL:

RESULT:

Done 3D Meshing of the given components.

with Elements Target size- 6mm

Tet collapse: 0.15