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Using a tesselated surface as an interface in a solid for solid mechanics analysis.

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Dear Community and COMSOL Employees,

I have a 3D scanned volume of a carotid artery, and seperate volumes of calcifications and other constituents, these are not mutually exclusive so some might overlap slightly due to thresholding artifacts. They are sometimes quite complex which causes problems. I tried to do Union operations with all the seperate constituents as to get 1 final geometry with internal boundaries where the material properties should change. However the last union did not go through and gave me the internal error in geometry decomposition. I am aware that some smoothing could help alleviate this issue but I do not want to revert to this just yet, as that will compromise accuracy.

Is there a way to not actively form a union with these constituents, but to load the surfaces of these constituents in as a boundary and using those boundaries to "separate" the vessel from the constituents and applying material properties and boundary conditions to that boundary?

I would add the .mph file if I could but due to the nature of the structure, the files are too big.

Kind Regards, Max


0 Replies Last Post 12 Nov 2018, 09:01 GMT-5
COMSOL Moderator

Hello Max van Wanrooij

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