Creating non-manifold assembly and projecting mesh

Support
1

Hi everyone,
I am a PhD student at the Weiss Biomechanics Lab, University of Utah. I am working on creating volumetric meshes from microCT scan images. Currently, I use MIMICS (v 24.0) for segmentation and 3-Matic (v 16.0) for aligning five parts, improving the mesh, and most importantly, creating non-manifold assemblies from these parts. I also use the “Project Mesh” tool in 3-Matic to create compatible meshes at the interface surfaces of two adjacent parts. Finally, I generate volumetric meshes for the parts and export them in .inp format. I was wondering if there is a way to perform these tasks using 3D Slicer. I looked at some of the plugins in 3D Slicer, but as far as I understood, none of them is very helpful in my case.

I hope I have expressed my question clearly, and I appreciate any suggestions you may have.

Best,
Farhan Muhib

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Have you tried SegmentMesher extension? It can create multi-material volumetric meshes for biomechanical analysis with shared points at the material interfaces, using Cleaver2 mesher (also from Utah).

Slicer can save volumetric meshes as VTK unstructured grid, with material ID specified in cell scalars. I think FEBio can read these mesh files directly, but if for some reason you need Abaqus .inp files then you can create them from VTK mesh files using a converter, such as the meshio Python package.