Can I set a side set inside of a domain?

Hi all,

I have a question about the side sets.
Can I assign a side sets inside of the domain? Those two lines lie on the surface and cannot cut the domain into discontinuity. I wanna export the line information into FEM to do calculations.

It seems that the information about those two lines cannot export in such a way. Is there any other approach to realize this purpose?

Thanks!

crack

I’m not completely sure I understand your question, however you should be able to “assign a side sets inside of the domain” as long as you’ve captured the curves (via imprint & merge) on the surface:

reset

create surface rectangle width 3 height 2 zplane 
create curve location 0 0 0 location 0.3 .5 0
create curve location 0.2 0 0 location 0.3 -.5 0
imprint surf all with curve 5 6
merge all
mesh surf 1
sideset 1 curve 5 6

image

image

image

Thanks, Greg Vernon! Your reply was helpful.
To be honest, I also tried to set the lines by using edge. I believe your way was available to export the information on the geometry.
But the question is that I need to convert the Abaqus format file to the UCD file. I have an in-house code to realize it. The UCD file looks okay. But there are some errors when I use the mesh. This error only happens at inside side sets scenario.
arbitary-crack.ucd.txt (9.8 KB)