I read the bend operations, but I had trouble bend different thin volumes together.
Say I have two adjacent volume, I hope they are bent w.r.t same axis, root point and radius. When I try
tweak volume 1 2 root ... they don’t lie on the same Cylindrical plane. Is there other ways to bend thin volumes / 2D sheets?
Hi @WayneYY,
could you share the geometry please.
Bending 2 volumes at the same time should be possible.
reset
create brick width 11 height 1
create brick width 1 depth 10 height 10
create brick width 1 depth 10 height 10
create brick width 1 depth 10 height 10
move body 2 general location position -3 5 0
move body 3 general location position 0 5 0
move body 4 general location position 3 5 0
subtract body 2 from body 1
subtract body 3 from body 1
subtract body 4 from body 1
webcut body 1 with plane xplane offset 0
compress
tweak volume 1 2 bend root 0 0 0 axis 1 0 0 direction 0 0 -1 radius 1 angle 3.14 location vertex 5 28 20 12
Thank for your reply.
I hope to bend 2 (or more) volumes when treating them as one sheet.
For example, for 4 adjacent volumes
reset
create brick width 1 depth 10 height 10
create brick width 1 depth 10 height 10
create brick width 1 depth 10 height 10
create brick width 1 depth 10 height 10
move volume 1 general location position 0 5 5
move volume 2 general location position 0 -5 5
move volume 3 general location position 0 5 -5
move volume 4 general location position 0 -5 -5
can I bend them as if they are one volume
create brick width 1 depth 20 height 20
Yes that seems to work. Just make sure that the root lies within a volume.
tweak volume 1 2 3 4 bend root 0 -5 0 axis 0 0 1 direction 1 0 0 radius 5 angle 3.14 location vertex 3 12 24 31
Hi @Norbert_Hofbauer ,
It seems bend operation eliminates the patterns on a surface, so i webcut the volumes before bending.
For the following geometry (including surroundings), is there a suggested hex meshing strategy?
When the bended volumes form a intact cylinder (2*pi angle), is it possible to mesh?
Usually we try to decompose the geometry so far that we can sweep. In this case this won’t work out as the sweep directions will cross each other and we need a possible mapped scheme on the sides.
But what you can do is using a tetmesh and then convert the tets to hexes.
reset vol all
vol all size auto factor 3
vol all scheme tetmesh
mesh vol all
thex vol all
Yes that should be doable using a tetmesh and thex.
Thank you. Is it possible to mesh it with sculpt? Thex does mesh it, but I want to keep the mesh size as large as possible (I know it’s greedy. I want to apply high-order FEM, so bigger mesh is preferred). So far I decompose it like this to mesh:
When you mesh it with sculpt you probably need a smaller size because you need a grid that catches your geometry well enough.
What exactly do the surfaces represent? Do you really need the quad in the circle?
Yeah I need it. I don’t think i’ll apply sculpt mesh on this example. Thank you sir.
