Timoshenko Beams Elements

[cslotboom]

I'm modeling timber systems where shear deformations can be significant and I'd like to be able to create timoshenko beam elements that include shear deformation in Pynite!

Currently I have to use other libraries like openSees for this, but would love to have it in Pynite as well.

[JWock82]

That is not on my radar at the moment, but if you want to take a stab at it, the code for the stiffness matrix is in the Member3D.py file. I'd love to see a Pull Request on this. I may be over-simplifying it, but I assume it would just be a matter of modifying the K method in that file.