I seriously studied FEM basics when I had attended the finite element method course in IISc, Bangalore. After that everything went back stage as work assignments took over.
Now as I need to revisit this topic again, I am again starting from the basics.
In this line, a colleague of mine passed this excellent PowerPoint on behavior of plates as used in FEM. It’s really good if you want to brush off the dust on your fea knowledge.
Do check it out.