I have a body that I will want to refine and/or coarsening the mesh in only a certain directions (lets say in the Global X and Y directions, but not the z-out of plane direction) see attached image 1 and 2. I used the mesh scaling feature, but it refine the body into all three direction.
I can accomplish what I need by mesh scaling then extract mesh sheet to make the mesh out-of-plane to be one; but I am not sure how to access the caution sign of using extract mesh sheet feature.
This will work to some extent, but is there a way to control the size of the element on the surface 7. For example, lets say I want to refine the original mesh (the example you’d posted) from length 1 to .5. How do I do that? As it is now, the refinement process you’d suggested split one element into 3 element, thus, each element is now .333.
The documentation on refinement talks about uniform vs. non-uniform refinement. In your case, you want non-uniform refinement because you are not refining in all three directions. So in this case, Trelis splits the edges twice (one edge into three edges). If you want to get a desired edge size after refinement, you will want to size the original mesh appropriately so that when you do refine, you will get the desired size. For example, if I want a size close to 0.5 in the x and y direction, I would so something like this:
reset
brick x 10 y 10 z 0.1
volume 1 copy move y 10
merge all
volume all size 1.5
mesh volume all
refine volume all using surface 7 depth 2
