Laboratorios virtuales
1-Elasticity 2D
https://labmatlab-was.upv.es/webapps/home/ELAS2D.html
2-Plate bending
http://laboratoriosvirtuales.upv.es/webapps/BENDING_PLATE.html
3-Shell structures, top view rectangular
https://laboratoriosvirtuales.upv.es/webapps/Shell.html
4-Shell structures circular, top view circular
https://labmatlab-was.upv.es/webapps/home/Shell_circular.html
5- Shell nonlinear Corotational formulation (Top view rectangular).
https://labmatlab-was.upv.es/webapps/home/Shell_nonlinear.html
6-Shell nonlinear Corotational formulation (Top view circular).
https://labmatlab-was.upv.es/webapps/home/Shell_circular_nonlinear.html

Corotational formulation (From my PhD 2003 Chapter 4 Spanish):
Matrix element BCIZ bending Kirchhoff (maple)