When meshing a plane in a 3D model, the error “Cannot use 'Mesh Volume ’ to mesh a sheet body”. Then I followed the prompts and used the command "Mesh Surface "Although there is no error reminder, I found that this plane mesh does not exist when I use it.
Here’s my grid command
${Units(‘si’)}
reset
create vertex x { 0.0km} y {0.0km} z {-4.50km} # 1
create vertex x { 200.0km} y {0.0km} z {-4.50km} # 2
create vertex x { 0.0km} y {-147.9km} z {-62km} # 3
create vertex x { 200.0km} y {-147.9km} z {-62km} #4
create curve vertex 1 2 # 1
create curve vertex 2 4 # 2
create curve vertex 4 3 # 3
create curve vertex 3 1 # 4
create surface curve 1 2 3 4 #1
surface 1 name “fault”
brick x 200000 y 200000 z 75500
move volume 2 x 100000 y -80000 z -42250 include_merged
imprint all with volume all
merge all
fault size 1000
volume all scheme tetmesh
mesh volume all
Error ‘Cannot use ‘Mesh volume’ to mesh a sheet body’ when running to mesh volume all Thank you in advance for your help.
To mesh the sheet body you can use mesh surface 1.
But first set the scheme for that surface to a trimesh with surface 1 scheme trimesh if you want to get a tetmesh.
reset
create vertex x 0 y 0 z -4500
create vertex x 200000 y 0 z -4500
create vertex x 0 y -147900 z -62000
create vertex x 200.0 y -147900 z -62000
create curve vertex 1 2
create curve vertex 2 4
create curve vertex 4 3
create curve vertex 3 1
create surface curve 1 2 3 4
surface 1 name "fault"
brick x 200000 y 200000 z 75500
move volume 2 x 100000 y -80000 z -42250 include_merged
imprint all with volume all
merge all
fault size 1000
surface 1 scheme trimesh
volume all scheme tetmesh
mesh surface 1
mesh volume 2
I noticed a couple of other things with your journal file. If you want to use the APREPRO si package, the correct syntax is of the form {45*km}. You have to do the units conversion via multiplication.
If you are doing a fault plane that is completely interior to the volume, imprint and merge won’t work because there are no surface-surface intersections. In that case, I like using the tetmesh respect option. First mesh the fault plane with triangles as Norbert explained above. Then issue the commands
volume 2 scheme tetmesh
volume 2 tetmesh respect tri in surface 1
mesh volume 2
This will tell the tetmesher to add the specified triangles into the tetmesh.
Karl