[Gmsh] Help with 3D mesh
Carrasco, Cesar J.
ccarras at utep.edu
Thu Jun 10 20:30:56 CEST 2004
Hello,
I am trying to develop a 3D mesh of a pavement section with several
layers of materials. The pavement section will be loaded on a small
patch of about 6in (tire pressure).
I successfully generated a 2D mesh that behaves exactly the way I want
it to. For the 2D mesh we would use an axisymmetric analysis.
I am attaching the geometry file for the 2D mesh.
What I want to do for the 3D mesh is to have something similar to the
2D. What I have done is duplicate the 2D geometry rotated an angle of
pi/2 radians. This would constitute just one of the quadrants of the 3D
mesh. What I was trying to do next was to create the volumes between
these two rotated planes. I connected the two planes with the
corresponding lines for just one of the volumes and created the
necessary surfaces. Then I created the volume. When I try to mesh the
volume, I get a series of warnings (I just copied two of them):
Warning : Coplanar points in circum sphere computation
Warning : (0,-155.24,0) (0,-148.353,0) (0,-155.24,0)
(3.61401,-151.799,-3.61401)
..................................
Needless to say, the 3D mesh does not get generated. I am attaching the
3D geometry file.
I am generating the geometry files using a program in Matlab, since I
need to be able to change the number of pavement material layers and
their corresponding dimensions.
I am sure there is a way to do this a lot easier.
Please help!!!!
Cesar
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