testing membrain stress with holes

Hey 
I am working on testing tension of structures with Rhino membrane component.
I want to check piece of membrane with different size of holes in it.
I was playing with script with attractors with allows me to make gaps in a grid of curves, but to relax it I need to have a mesh. 
Could anyone can tell me how I can get mesh form network of curves or there is eaier way to test it.