Help Getting the force acting on a Rod

[astro.domine]

Beautiful, thank you very much for the explanation. Using the code from 'Rope.ApplyTearing()' I was able to sum up the strech/shear/bend on the rod and use that for haptic feedback (working on a VR fishing rod).

Note these are two completely different things. Stress is the force, strain is the deformation caused by it. The relationship between them is often non-linear.

That totally makes sense (because the resultant deformation is dependent on all the different constraint parameters, element length, etc).