Postview export stl2/25/2023 ![]() ![]() ![]() I hope this helps and let us know if you find a method that works for you, since this definitely is a topic of interest to us. As I said, we are working on measures of anisotropy for fiber distributions, but that is still in an early stage, so I'm not sure when that would be available. You could then write some code in MATLAB or so to apply the deformation gradient to the ellipsoid's axes and fit a new ellipsoid to it. (You can have FEBio write it directly to a text file so you wouldn't have to go through PostView). Since I assume you know the principle axes of the ellipsoid in the undeformed shape, you can export the deformation gradient from FEBio for each element. Unfortunately, we don't have a lot of tools in FEBio or PostView that can help you with that. You would then have to fit an ellipse to these deformed vectors. In order to do that, you could apply the deformation gradient to the principle axes of the ellipse in the material frame. Common blocks for conversion are: Mesh from Implicit Body Mesh from CAD Body Mesh from Voxel Grid 2. That said, I understand that you could define a measure of anisotropy by applying the deformation to this ellipse. Procedure: In order to export STL, OBJ, or PLY files, you will need a mesh since these are mesh formats. Although the material can behave very nonlinearly, the material parameters never change as a result of the deformation. Technically speaking, the ellipsoid that defines the fiber distribution never changes shape as the material deforms. I assume you are using one of the continuous fiber distribution models? We currently don't have a mechanism for defining the anisotropy for a fiber distribution (however, we are in fact working on that). The FEBio software downloads and knowledgebase can be found here. In the Modeling Tab, I select only the new component 'Toolpath Preview Component' 4. Select 'Create Component From.Toolpath Preview' 2. This will allow you to stay up to date on recent activity on the forum. Then I double-click on the extraneous material to delete it in my Preview. You can subscribe to forums by pressing the "Subscribe" button at the top of the forum. ![]() Moderators are here to assist with explaining novel features, addressing bug reports and reviewing feature requests, but the effectiveness of the forum depends critically on the participation of experienced users who can assist novices or share ideas and models that explore challenging problems. A broad level of participation is encouraged, to create a vibrant community that helps improve the quality and usefulness of these open-source/free software products. Forum participants are encouraged to post questions, as well as answer posts from others. This forum serves the community of FEBio and FEBio Studio users and developers. ![]()
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