  The two principal ingredients determining the failure modes of disordered
solids are the level of heterogeneity and the length scale of the region
affected in the solid following a local failure. While the latter facilitates
damage nucleation, the former leads to diffused damage, the two extreme failure
modes. In this study, using the random fiber bundle model as a prototype for
disorder solids, we classify every failure modes that are the results of
interplay between these two effects. We obtain scaling criteria for the
different modes and propose a general phase diagram that provides a framework
for understanding previous theoretical and experimental attempts of
interpolation between these modes.
