Version 1.5
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Section A.11: VTK format Up Main page

# B Standard Data Fields

FEBio Studio defines the following list of standard data fields that can be added to a post model.
 Name Description Initial Position The initial nodal position of the model Aspect ratio The element's aspect ratio 1-Princ curvature The first principal curvature of the surface 2-Princ curvature The second principal curvature of the surface Gaussian curvature The Gaussian curvature of the surface Mean curvature The mean curvature RMS curvature The Root-Mean-Square curvature Princ Curvature difference The difference of the principal curvatures Congruency The congruency 1-Princ curvature vector The first principal curvature vector 2-Princ curvature vector The second principal curvature vector
The following data fields require a “displacement” field.
 Name Description Position The current nodal position of the deformed model Deformation gradient The deformation gradient of the deformation map Infinitesimal strain The infinitesimal (engineering) strain tensor Lagrange strain The Green-Lagrange strain tensor Right Cauchy-Green The right Cauchy-Green deformation tensor Right stretch The right stretch tensor Biot strain The Biot strain tensor Right Hencky The Right Hencky tensor Left Cauchy-Green The left Cauchy-Green strain tensor Left stretch The left stretch tensor Left Hencky The left Hencky tensr Almansi strain The Almansi strain tensor Volume The element's (approximate) volume Volume ratio The ratio of current over initial element volume Volume strain The volumetric strain
The following data fields require a “stress” field.
 Name Description pressure Calculated from the “stress” field: