We consider the problem of detecting elastic inclusions in elastic
bodies by means of mechanical boundary data only, that is
measurements of boundary displacement and traction. In previous
work of some of the present authors, upper and lower bounds on the
size (area or volume) of the inclusions were proven analytically.
Following the guidelines drawn up in such previous theoretical
study, an extended numerical investigation has been performed in
order to prove the effectiveness of this approach. The sensitivity
with respect to various relevant parameters is also analysed.