Hi all,
I would like to do stress analysis of geological discontinuities (natural fracture, rock bridge, etc) in the cavern by Abaqus 6.14.
First, we did scan the cavern from LIDAR scanner to get point cloud. Then, as you know, the point cloud data can be meshed by using a few software (meshlab, I-site, rhino...) as surface mesh. But the problem is here. As the cavern geometry is so complicated, there are lots of irregular (overlap, hole, ...) meshes, which can not be extrude to create a 3D solid element.
Even, I don't know Abaqus can generate 3D mesh based on this 2D surface mesh or if Abaqus can't do that, what are the alternatives for Abaqus to get nice solid mesh?
In my opinion,
I feel that I have to use professional meshing tools (Hypermesh...) to get solid element before importing it to Abaqus.
Any ideas how to solve this problem?
Abaqus cannot do that and this is a rather difficult problem.
If you can afford it, Simpleware may be able to solve your problem.
If you are stuck with open source, you can try to create an STL file, repair it with meshmixer and then mesh it (using tet meshes) using tetgen or gmsh. You can then import the mesh as an orphan mesh into Abaqus.
To the best of my knowledge, Abaqus cannot do that.
Apart from the open source software mentioned by Mr Baeker above, if you are familiar with MATLAB programming language, you can use the following toolbox, along with its examples:
http://www.mathworks.com/matlabcentral/fileexchange/48509-computational-geometry-toolbox
After the generation of the mesh, you can import it in Abaqus as an orphan mesh.
Regards,
George
- Badges
- Science topic