Mesh error
I'm doing a dental veneer analysis in thermal and structural modules. My model is in .cdb format so I added like external model. I can not change mesh, it occurs automatically because of external model. I took values of temperature hassle-free however in structural module I was faced with an error, highly distorted mesh error. Why would such a problem occurs? How can I solve this problem? Thank you for your help.
Comments
Hello,
May be a stupid suggestion - but could you please try and import your geometry directly into the Transient thermal (rather than using the External Model)? Please let us know if this works.
Thanks.
Karthik
I have only .cdb or .db format of model so I used external model section. Even if I use a different, uniform, similar geometry in geometry section, I still get a mesh error at structural part. I do not understand why the error is caused.
@muge
Are you working with @SercanKumru ?
In a nonlinear analysis, when large forces are computed, element distortion occurs. Often, the corrective action is simply to take more substeps so the increment of force is smaller and the element distortion is small enough to be accommodated, and that continues over the many substeps.
Other times, many substeps does not work and a better mesh is required to avoid the element distortion error. For this you need geometry.
Who provided the .cdb file? They imported a geometry file to make the mesh. Ask them to provide the geometry file also.
Hi @peteroznewman ,
Yes, I am working with @SercanKumru . Unfortunately, the model geometry was not sent to us and the model is old. We are asked to solve with this format but we are constantly getting errors. And yes, highly distorted meshes occurs, we cannot intervene them because of format.
Thanks, have a good day.
@muge
You can export a mesh as an STL file, and convert the STL file to geometry using tools in SpaceClaim. There are many videos to help learn how to use those tools. In that way, you will end up with geometry that you can mesh as you want as well as adjust the geometry to help with problem areas.
I also tried this option. However the model consists of 2 parts assembled and after editing it pretends to be one piece. Therefore when applying the boundary conditions, the desired part cannot be selected.
Thank you for your response. @peteroznewman