How to model a rectangular plate with a circular hole

Question

Hello
I want to model a rectangular plate with a circular hole in the center and then mesh it. Is there anybody here who has done that before?

Answer 1

Have a look at http://geuz.org/gmsh/, it's pretty straight-forward. You can convert the gmsh mesh to dolfin xml using dolfin-convert.

Answer 2

Use the mshr-package (https://bitbucket.org/fenics-project/mshr):

from dolfin import *    
import mshr
domain = mshr.Rectangle(Point(0,0), Point(4,1))-mshr.Circle(Point(2,0.5), 0.2)
mesh = mshr.generate_mesh(domain, 60)
plot(mesh, interactive=True)

Comments

Thank you so much for your help.