Modeling L4-L5 and intervertebral disc

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Hi Pavel,

Thank you for your reply. So, I want to go through the route of AnyFE2Abq converter. If I understood correctly and I want to have both the L4 and L5 seg in my FE model along with the manually created disc (for FE mesh and analysis not in Anybody), would the following pieces of code be appropriate?

I first export all the forces in segment L4 and L5 using the reference frame of SacrumSeg (is this appropriate, or do I need to use another reference frame?)

 AnyMechOutputFileForceExport testL4L5 = 
 {
   FileName = "test.xml";
   UseRefFrameOnOff = On;
   AllSegmentsInStudyOnOff = Off;
   XMLformatOnOff = On;
   RefFrame = &Main.HumanModel.BodyModel.Trunk.SegmentsLumbar.SacrumSeg.localrefframe;
   Segments = {&Main.HumanModel.BodyModel.Trunk.SegmentsLumbar.L4Seg, &Main.HumanModel.BodyModel.Trunk.SegmentsLumbar.L5Seg};
 };

Then I use that .xml file to convert to an Abaqus input file using the following command:

 AnyOperationShellExec ConvertToAbq={
   Show=On;
   FileName = ".AnyFE2Abq.exe";
   Arguments = "-i .test.xml -o .output_AB.inp -m .L4-L5-disc_mesh.inp";
   WorkDir=".\ ";
 };

The L4-L5-disc_mesh.inp is my mesh file that contains the L4 and L5 segment exported from Anybody in their local coordinate system and I have manually added intervertebral disc in between them.

Any feedback would be greatly appreciated.

Regards,
Anup