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07-10-2020, 01:52 PM

wargodaret replied to a thread zero thickness of the mesh in Users Forum

I'd love to. Thank you very much

21 replies | 521 view(s)

07-10-2020, 01:16 PM

Shamimur Akanda started a thread Impermeable surface- in Users Forum

Hi, I want to convert the contact of a rigid body and a biphasic material permeable from impermeable during a creep test. What is the best...

0 replies | 5 view(s)

07-10-2020, 09:26 AM

agalloy replied to a thread Penalty Parameter During Frictional Contact in Users Forum

Ok, that makes sense. This should help with interpreting the other simulations. Thanks, Adam

4 replies | 38 view(s)

07-10-2020, 09:01 AM

brandonz replied to a thread Penalty Parameter During Frictional Contact in Users Forum

Hi Adam, One thing we should keep in mind is that these benchmark problems are designed specifically to be challenging for contact algorithms. The...

4 replies | 38 view(s)

07-10-2020, 08:36 AM

maas replied to a thread zero thickness of the mesh in Users Forum

@wargodaret, If you'd like, I can send you the latest version of FEBioStudio. Although we'll be releasing it soon, it might be helpful for you to...

21 replies | 521 view(s)

07-10-2020, 07:20 AM

weiss replied to a thread Step Size and cyclic loading in each step in Developers Forum

The "lc=1" refers to a load curve that defines the must points. bp17.feb already has two load curves defined, so you will want to use "lc=3" and...

4 replies | 55 view(s)

07-10-2020, 07:10 AM

thuynh4 started a thread Applying Rigid Force to Rigid Body, no deformation seen on Postview in Users Forum

Hello FEBio Community, Might be missing something super small, but I am trying to run a sim where I apply a rigid force downward onto the spine,...

0 replies | 7 view(s)

07-10-2020, 01:53 AM

wargodaret replied to a thread zero thickness of the mesh in Users Forum

Hi Gerard, I'm having another problem with the COMSOL mesh imported into FEBio. As you can see, there are holes in the inner structure. And...

21 replies | 521 view(s)

07-09-2020, 10:06 PM

NataCalc started a thread Improve results of inverse fitting in Users Forum

Hello, Would it be possible to improve the outcome of inverse fitting (see enclosed figure)? I have tried 1st order and 2nd order of Ogden...

0 replies | 11 view(s)

07-09-2020, 04:48 PM

maas replied to a thread Step Size and cyclic loading in each step in Developers Forum

Hi Muhammed, When you use a load curve on the dtmax variable, its value is effectively ignored. The value of the max time step size is now taken...

4 replies | 55 view(s)

07-09-2020, 04:15 PM

agalloy replied to a thread Penalty Parameter During Frictional Contact in Users Forum

Thanks for the quick and detailed response. One thing I forgot to mention is that I was using the Augmented Lagrangian method with values of P=1...

4 replies | 38 view(s)

07-09-2020, 03:11 PM

brandonz replied to a thread Penalty Parameter During Frictional Contact in Users Forum

Hi Adam, The particular test problem you chose (compression of concentric spheres) is an interesting one because it exhibits a material...

4 replies | 38 view(s)

07-09-2020, 12:33 PM

stormydoctor started a thread Relative Rotation of Rigid Body in Users Forum

Dear all, I'm trying to achieve a relative rotation of rigid body. Attached is a "feb" file of a two-step analysis that I created. In the file,...

0 replies | 17 view(s)

07-09-2020, 10:57 AM

mmrahman replied to a thread Step Size and cyclic loading in each step in Developers Forum

Thanks a lot Prof. Weiss for your reply. To understand properly the feature of "dtmax lc", I simulated the bp17.feb verfiy input file with the...

4 replies | 55 view(s)

07-09-2020, 10:38 AM

agalloy started a thread Penalty Parameter During Frictional Contact in Users Forum

Hello, I have been using the Sliding Elastic contact formulation with friction and have noticed that the results for some of the problems I run...

4 replies | 38 view(s)

07-09-2020, 08:01 AM

YIDAN started a thread Use Two-step Approach Correctly? in Users Forum

Hi, I am using the knee model in the SimTK project and try to add prestrain into my model. However, when I use the two-step approach to apply...

0 replies | 22 view(s)

07-09-2020, 06:40 AM

weiss replied to a thread Step Size and cyclic loading in each step in Developers Forum

You can use the "must point" feature and the "plot_level" variable in the Control Section to do this. The must point feature is used to define...

4 replies | 55 view(s)

07-08-2020, 04:54 PM

mmrahman started a thread Step Size and cyclic loading in each step in Developers Forum

Hi, I am having trouble to define the time steps in a case where I will apply sinusoidal loading on a cube. I would like to simulate this for 10...

4 replies | 55 view(s)

07-08-2020, 08:28 AM

maas replied to a thread FEBioStudio crashes due to a part, would like to know why in order to fix it in Users Forum

Hi, I don't have any problems running this model in our latest development version of FEBioStudio, so if you reach out to me via email (steve dot...

1 replies | 37 view(s)

07-08-2020, 03:50 AM

Abha replied to a thread FEBio crashes when running a file with FEBioChem Plugin in Developers Forum

Dear Steve sir, Yes, my problem was solved after changing the code as you suggested. Thank you very much for your help. Abha

2 replies | 93 view(s)

07-07-2020, 03:09 PM

thuynh4 started a thread FEBioStudio crashes due to a part, would like to know why in order to fix it in Users Forum

Hello FEBio Community! FEBioStudio for me is crashing whenever I click run on my spine model. It runs perfectly fine without the part labeled...

1 replies | 37 view(s)

07-06-2020, 02:47 PM

tsims started a thread Output Variable Not Defined Error in Developers Forum

Hello! I was working on trying to add a variable to the plotfile. I have a test set up that just logs point index, but for some reason I keep...

0 replies | 28 view(s)

07-06-2020, 02:22 PM

sam2000 replied to a thread Pressure inside a cavity in Users Forum

Many thanks Maas.. I read some old post on similar questions, but still not sure how to use volume constraint. I am attaching a model, could please...

2 replies | 59 view(s)

07-06-2020, 01:54 PM

maas replied to a thread Pressure inside a cavity in Users Forum

Hi Sam, You could look into adding a "volume constraint". You can find it in the "Physics\Add Constraint" menu. It will calculate the pressure...

2 replies | 59 view(s)

07-06-2020, 01:40 PM

maas replied to a thread Negative jacobian detected during domain initialization in Users Forum

Hi Ryan, The problem in lexiedm14's mesh was thin slivers. If you can upload or email me (steve.maas@utah.edu) your model, I'd be happy to take a...

5 replies | 212 view(s)

07-06-2020, 09:32 AM

rford03 replied to a thread Negative jacobian detected during domain initialization in Users Forum

Hi all, I am having a similar issue, in that my .msh file imported from gmsh has a negative jacobian detected during domain initialization. Gmsh...

5 replies | 212 view(s)

07-06-2020, 05:46 AM

sam2000 started a thread Pressure inside a cavity in Users Forum

Hello, I want to model a 2D cavity that filled with an incompressible fluid in two steps. In the first step the pressure inside the cavity will...

2 replies | 59 view(s)