Dissipated energy (solid line) and total number of broken contacts (dotted line) of BAM and static compaction (SC) aggregates while pulling the plates apart. The size of both samples is 50 × 50 × 30   μm, and their initial filling factor is φ = 0.28. The critical force F_c and critical distance δ_c at which a contact breaks are used to normalize the energies. For comparison, the corresponding tension (dashed-dotted line) is also plotted.