having hexahedral mesh


Hi there,
I am working on a knee project and my goal is to mesh the its different parts. As you know different parts of these such as femur, tibia, ACL and etc have really complex geometry. I have gotten the final shape from CT scan files.
Right now I need to kind of meshing style. First C3D8 for bones and C3D20 hex mesh for the soft tissues. I can not find a good method to mesh my shapes in Hypermesh in the style that I have attached to this email. Attached is a sample picture of what I want at the end.
I would really appreciate if you tell me how I can have such meshing with control on my mesh density by using Hypermesh.
Also, I should mentioned that I have worked with shrink wrap. As you know it was not accurate and also it has taken me too many elements that I cannot run such huge number in Abaqus.
Thank you for your help
Regards;
Amir
hi,
i think with any 3d mesh session, you have to devide your geometry into mappable region
then you can control density each region. just thinking how to make them mappable
i see your geometry is more simple than a cushion, so you should try manual mesh, it's not so difficult
havve a good job


Hi,
I agree with 'tinh', also it is better to create sections (cross sections) across the geometry and use 'solid map' option avaliable in the 3d-panel.
your geometry looks reasonable in terms of the effort required to mesh it. Use the top-down meshing approach to mesh the component.
I have also attached an attachment with some steps,although the example I used to illustrate the approach is very simple, you can still use the approach to build your model.
Hope this answers your question, good luck.


for these kind of parts the BesT way is to use Morphing ! try it and u'll get surprised yourself !! /emoticons/default_smile.png' alt=':)' srcset='/emoticons/smile@2x.png 2x' width='20' height='20'>


Hi, I guess you need to find another mesh tool. such as IA-FEMesh