Role of porosity network in splitting fracture of bovine cortical bone

In the present work, the role of structure of porosity network in fracture behavior of plexiform bone under compression is examined. Using a 2D spring network model, the fracture paths and macroscopic response are determined for a range of elastic and fracture behavior of the springs. The differences in response for samples with similar overall porosity are attributed to the differences in the porosity network and distribution. Further, simulations with homogeneous distribution of porosity show that it is desirable to have short and diffused porosities, similar to remodeled bone.