The key features:
1. A linear, small strain FEM solver with the capability of a high bulk modulus is used. It's an extension of the linear, small strain module.
2. Compression or tension displacements can be used. For this module a (+) displacement is compression. a (-) displacement if tension.
3. For large displacements the user can increment the displacement into smaller steps and the preceding step geometry is used for the next step.
4. The load steps are plotted to show the load/deflection curve as the displacements are incremented.
5. The final secant stiffness is given.
6. The rz shear strain is overlayed on the deformed plot and is the cumulative strain from the load steps.
7. A slider for scaling the deformed plot is available.
8. Modeled geometries included are cylindrical, conical and both with curved edges.
9. A checkbox is available to denote there is no center hole.
10. The FEM mesh can be user changed in both r and z.
11. Default values are given for most of the inputs, but the user can change them.
12. Dimensional units can be lbs., inches or N, mm.
13. The top and bottom surfaces can either be constrained in the radial direction to simulate bonded surfaces or be left free.
13. The results can be animated as shown to the right. The top animation is compression for the shown conical shape with contoured sides. The bottom is the same shape in tension.
