The first side of the bigger box (48cmx48cmx38cm) required 514.5 newtons and broke irregularly as shown in Fig \ref{312178}a. The opposite side required almost 10 newtons more to break. After the four sides broke, the edges of the box were almost intact as seen in Fig \ref{312178}b. For that reason, the testbed was also used to break the borders of the box as shown in Fig \ref{312178}c. Since the shape of the rupture is uneven, the force required to break the edges varies from 328.3 newtons to up to 588 newtons. Finally, the remaining pieces longer than 30 cm were also crushed.