I have ported some tutorial steps from the well-known and widely used FE software package deal.II (see deal.II Homepage) to FEMLISP. These are very well worked out and can be started by loading them first with
(asdf:make :dealii-tutorial) (in-package :fl.dealii)
(or something like ’,l<enter>dealii<tab><enter>’ in the SLIME buffer) and then executing
where "step-1" can be replaced by other steps, of course.
The best approach is probably to read through the corresponding deal.II tutorial page first, then run the tutorial step in Femlisp, and finally to look at the corresponding file "step-X.lisp" and play around yourself.