FEAview

FEAview is a finite element post-processor and results viewer for linear static problems using MSC.Nastran.

It supports the elements, properties, materials, and loads commonly used in structures problems. It transforms the model and solver results data into readily comprehensible 3D graphical and tabular displays.
FEAview always provides access to the numerical data whether on the 3D display or in tables. It handles composites and does a good job of handling grid point force balance data.