Mesomechanics involves analyzing the deformation and/or fracture of so
lids at the micro-, meso- and macro-scale level. Base elements for eac
h scale level are chosen such that the behavior of the solid would be
described by a combination of these elements. Special attention is giv
en to the fragmentation of solid which is the main character of plasti
c flow at the mesoscale level. The final stage of fragmentation corres
ponds to fracture as the changes from the meso- to the macro-scale lev
el. (C) 1998 Elsevier Science Ltd. All rights reserved.