Friction between model catheter and Vessel

[MarkWrobelUCL]

Hi all,

I am trying to simulate a catheter procedure in a heart vessel. My code can be found here: https://github.com/MarkWrobelUCL/SOFA/blob/main/PA_cath_sim_2.py

My main issue is that I am trying to increase the friction (or introduce friction) between my catheter and vessel. Line 70 has CollisionResponse added with mu=10 to make it obvious if there is a change. I am not sure why this is not working. I have read a precious thread ( https://www.sofa-framework.org/community/forum/topic/the-friction-between-a-tissue-and-a-surface ) and added things like UncoupledConstraintCorrection on lines 116 and 127 to no effect.

The only thing I can think of is that my vessel has a HexahedronFEMForceField but I'm not sure my catheter has an analogous object. When I try adding BeamFEMForceField on line 104 it crashes my code.

I would appreciate any help and Ideas as I am quite stuck at this point.

Thanks, Mark

Edit: I realize this should has been probably posted in discussions section. Feel free to delete this and I will re-post there

[hugtalbot]

Hey @MarkWrobelUCL

Without your files (mesh and txt file) we can not reproduce your simulation
I also do not really get what is the exact issue you are facing: no friction applies ? the scene crashes ?

Thanks

PS: I did made it as a Discussion ;)

[github-actions[bot]]

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@MarkWrobelUCL
We are setting a new forum management policy: topics like this one, in which the last reply is more than 4 months old, will automatically be closed. Without further news in the coming weeks, our bot will proceed to automatic closure, thus keeping this forum clean and fresh 🌱 Thank you for your understanding

[github-actions[bot]]

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@MarkWrobelUCL
In accordance with our forum management policy, the last reply is more than 4 months old and is therefore closed. Our objective is to keep the forum up to date and offer the best support experience.

Please feel free to reopen it if the topic is still active by providing us with an update. Please feel free to open a new thread at any time - we'll be happy to help where and when we can.

[github-actions[bot]]

⚠️ ⚠️ ⚠️
@MarkWrobelUCL
In accordance with our forum management policy, the last reply is more than 4 months old and is therefore closed. Our objective is to keep the forum up to date and offer the best support experience.

Please feel free to reopen it if the topic is still active by providing us with an update. Please feel free to open a new thread at any time - we'll be happy to help where and when we can.