From
Open, navigate to the
C:\Users\Public\Public Documents\Autodesk\Inventor Nastran 2022\Tutorial\en-us\Inventor 2022 folder and open
bike frame section.ipt.
Click
File,
Save As and save the model as
Composites Bike Frame Section.ipt. This allows you to reuse the original part.
Click
Environments > Autodesk Inventor Nastran.
Go to
Tools > Document Settings > Units. Set the units to inch and lbmass (pound). They will become the
Default units. Or, double-click
Units in the tree and select a
Unit System with units set to inches and pounds.