Week 8-3D Tetra Meshing Challenge

Objective:3D Tetra Meshing Challenge

Q1.Create a Teramesh for Housing component with the following quality criteria.

TetraMesh Generation Method: 2D to 3D Conversion

Elements sizes: Min- 2 Units, Target- 5 Units, Max- 7 Units

Tet collapse: 0.15

solution:

first open the hypermesh and select radioss profile

now import the file by going to file-import-geometry(according to file type)-then hit import

now check for any geometrical error and repair it using quickedit,replace node,surface etc

and after repairing the geometry see if there is any free edges left.

now geometry clean up is done

now to do 2D mesh we have to go to 2D -Automesh-select the surface-mesh

then go to tools-check elems-2d-give min length 2 mm and max length 7mm-then click on min length and it will give

the elements which are failing.

to see the elements which are failing click on saved-mask-right click on elements-retrieve-mask-reverse then all the failing

elements will appear and now repair them.

now to create a 3D mesh go to 3D -tetramesh-select elements-mesh

and check for elements failing

go to tools-check elems-3d-give tet collapse 0.15-then click on tet collapse to check and it will give

the elements which are failing.

to see the elements which are failing click on saved-mask-right click on elements-retrieve-mask-reverse then all the failing

elements will appear and now repair them.

2D to 3D conversion is done

Q2.For the given model, Create a 3D Tetramesh with the following quality criteria.

TetraMesh Generation Method: Quick Tetra Mesh/ Volume Tetra Mesh

Target Element size: 3 Units.

Tet Collapse: 0.15

first open the hypermesh and select radioss profile

now import the file by going to file-import-geometry(according to file type)-then hit import

now check for any geometrical error and repair it using quickedit,replace node,surface etc

and after repairing the geometry see if there is any free edges left.

in this i have used the volume tetramesh

we use volume tetramesh when we want quick result and not perfectly

in this we directly do 3d mesh without the 2d mesh.

to do volume tetramesh go to 3D-volume tetramesh-solid-give element size-mesh

volume tetramesh is done

Q3.For the given assembly model, Create a 3D Tetramesh with the following quality criteria.

TetraMesh Generation Method: Quick Tetra Mesh/ Volume Tetra Mesh

Target Element size: 4 Units.

Tet Collapse: 0.15

in this there are four components

i will do it one by one

first open the hypermesh and select radioss profile

now import the file by going to file-import-geometry(according to file type)-then hit import

now check for any geometrical error and repair it using quickedit,replace node,surface etc

and after repairing the geometry see if there is any free edges left.

select the only one component

now in this i have done quick tetra mesh by going to utility-geom-mesh-quick tetramesh-give the values -mesh

3D mesh is done

select the only one component

now in this i have done quick tetra mesh by going to utility-geom-mesh-quick tetramesh-give the values -mesh

3D mesh is done

select the only one component

i have done volume tetramesh in this

select the only one component

now in this i have done quick tetra mesh by going to utility-geom-mesh-quick tetramesh-give the values -mesh

final component

conclusion

conversion of 2D to 3D using different methods like quick tetramesh,volume tetramesh etc