  Understanding the collisional fragmentation and subsequent reaccumulation of
fragments is crucial for studies of the formation and evolution of the
small-body populations. Using an SPH / N-body approach, we investigate the
size-frequency distributions (SFDs) resulting from the disruption of 100
km-diameter targets consisting of porous material, including the effects of
pore-crushing as well as friction. Overall, the porous targets have a
significantly higher impact strength (Q*D) than the rubble-pile parent bodies
investigated previously (Benavidez et al., 2012) and show a behavior more
similar to non-porous monolithic targets (Durda et al., 2007). Our results also
confirm that for a given specific impact energy, the SFDs resulting from a
parent body disruption are strongly dependent on the size scale.
