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Eleonora replied to the topic Simulating Elastic Material in SOFA in the forum Using SOFA 1 year, 2 months ago
Hello @ma1991,
Not long ago, I attended an event where there was one of the developers of the SoftRobots plugin and we tried out a similar scene. We experienced the same issue: the scene works perfectly on Linux, but it’s not the same on OSX. We have been told that the issue might be the way graphics is handled on OSX, which may mess things up a…[Read more]
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Eleonora replied to the topic Decreasing FPS during contact in the forum Using SOFA 1 year, 12 months ago
Hello @hkomninos,
I did some work on the comparison between FEBio and SOFA, in particular related to nonlinear constitutive laws (StVenant-Kirchhoff and Neo-Hookean). Based on my experience, it’s worth checking that you are using the same integration rule in SOFA and FEBio. Indeed, while SOFA always uses 1-point Gauss integration rule (to my…[Read more]
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Eleonora started the topic Validation of SOFA in the forum Announcements / Infos 2 years, 3 months ago
Hi SOFA community!
I know that some people have tried to validate some SOFA implementations during the past years, but the works remained isolated and not shared within the community.
It would be nice to collect the attempts that people have made in this direction, so that we could benefit from each others works, and align our efforts for further…[Read more] -
Eleonora replied to the topic Elastic behaviour and TetrahedronFEMForceField in the forum Using SOFA 2 years, 3 months ago
Hi @krewcunc,
Thank you for your reply.
Actually I have been a bit vague by calling it “beam”, indeed what I am trying to simulate is a parallelepiped (thus, beam-shaped) modelled with a TetrahedralCorotationalFEM (which does not implement plasticity, likewise the BeamFEM). I guess I’m just having some discretization/numerical issues, but in…[Read more] -
Eleonora replied to the topic SofaPython Pick objects in the forum Programming with SOFA 2 years, 3 months ago
Hi @jangirrishabh,
I’ve come across your post and I think you should have a look at this post. I think that either the AttachConstraint or the BilateralInteractionConstraint components could work for you.
I hope you’ll find it useful.
Eleonora -
Eleonora replied to the topic Elastic behaviour and TetrahedronFEMForceField in the forum Using SOFA 2 years, 3 months ago
I have found this quite old topic and I wanted to ask if you’ve ever succeeded in comparing SOFA solutions with those of other softwares in the meanwhile.
I was indeed trying to simulate the same scenario mentioned above (3D linear elastic beam with gravity, fixed at one end) but results are not exactly as I expected. As…[Read more] -
Eleonora replied to the topic Deformable/rigid object surface attachment in the forum Using SOFA 2 years, 6 months ago
Hi all,
I know this thread is quite old, but I am facing the same problem you described here. Did you eventually find any way to solve it?
Thanks!
Eleonora -
Eleonora replied to the topic Installing v17.12 from DMG package on Mac OS in the forum Building SOFA 2 years, 9 months ago
Hi guys,
I’ve just tried to install v17.12 again, and I do not have the freezing issue anymore (whereas the double clicking is still not fixed, but it’s a minor thing).
Thank you!
Eleonora -
Eleonora's profile was updated 2 years, 9 months ago
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Eleonora started the topic Installing v17.12 from DMG package on Mac OS in the forum Building SOFA 2 years, 9 months ago
Hi there,
I just wanted to report that I noticed a weird behaviour when trying to install latest SOFA versions (both v17.12.01 and v17.12.00) on Mac OS from the DMG package.
First, every time I turn on my laptop, the SOFA licence agreement appears and if I press “Agree”, the computer freezes and I have to restart it. Second, I cannot execute…[Read more] -
Eleonora replied to the topic Collision rigid-deformable objects in the forum Using SOFA 2 years, 10 months ago
Hi Hugo,
Thanks for your suggestion. I’m still working on it, I’ll let you know if I solve the issue.
I have another question: can you confirm that the TetrahedralCorotationalFEMForceField assumes that my model has a linear elastic behaviour? Is there a way to use other constitutive models in SOFA?Many thanks!
Eleonora -
Eleonora replied to the topic Collision rigid-deformable objects in the forum Using SOFA 2 years, 10 months ago
Hi there,
Both the breast and the probe are in mm.
However, if I use a Young modulus in MPa (~ 0.01), the breast does not behave as I expect (when deformed only by gravity). I will try to think about this measurement units issue and let you know if I make any progress.Thank you again.
Eleonora -
Eleonora replied to the topic Collision rigid-deformable objects in the forum Using SOFA 2 years, 10 months ago
Hi Hugo,
Thank you for your answer. I tried the solution you posted and it works correctly. Anyway, if I replace the hemisphere with the breast mesh, SOFA crashes as soon as collision with the probe is detected. I tried to consider as collision model just the subset of the mesh lying close to the probe, and I tried some different models (at…[Read more]
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Eleonora started the topic Collision rigid-deformable objects in the forum Using SOFA 2 years, 11 months ago
Hi everybody,
I have been struggling with some issues related to collisions for a while, I guess since I still do not have a complete understanding on how things work in SOFA.
What I am trying to do is to simulate the interaction between a probe (rigid object) and a breast (deformable object).1) I decided to start from a simplified scenario,…[Read more]
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Eleonora became a registered member 2 years, 11 months ago