VTKpytools/Bar2vtk
From PHASTA Wiki
bar2vtk is a utility from the vtkpytools project for converting *bar files (velbar and stsbar) into appropriate VTK files. In particular, it makes use of the barfiletools module in the vtkpytools project.
Documentation for bar2vtk can be found by running the --help flag, but this will also serve as a more detailed/verbose documentation page as well.