Overall, we have gained significant insight on how defects coupled with slanted interfaces can effect both 2D media and 3D printable First we observe the trend of increasing the angle of the interface yields an overall beneficial effect of the toughness of the materials, which we observed through deflection vs. penetration cases, stress fields, and energy plots. Firstly, examining the occur-Fig. : 10 Degree at 10 Defect Density Case rence of deflection vs. penetration cases, we overall see through out mathematical modeling that the slopes of the linear fits are around the same values (0.0060 to 0.0040), which shows the consistency within the study. However, we observe that as the defect density increasing within the interface region, the slope begins to decrease as well. This should be be mistaken as the fact that the material becomes weaker at the higher defect density, though, as the initial critical fracture toughness G c at 0 • grows in a rather exponential rate, which is clearly characterized with the jump from 0.199 to 0.338 from 7 defects to 10 defects. When observing closer, we see that there are differences in terms of time until failure and stress intensity build up at the crack tip in all cases visually. More importantly, the raw energy data provides useful insight into the effects as well, comparing the growth from 0-15 defects, we specifically observe that the 15 defect cases have a much more exponential trend in the decrease in the Elastic Energy Limit. Along with this, the overall highest peak Elastic Energy and Total Energy are found within the 15 defect case, constituting a large jump from not crossing 5 J in the 0 defect case to reach around 12 J in the 15 defect case. As the angle increases, notably for the 10 defect cases, the stress becomes more concentrated at the crack tip with dark red regions in a concave curvature towards the right hand side of the material. This differs from the common convex curvature present at the lower angle cases. Within these lower angle cases, the stress builds concentration at the bottom of the crack and the crack tip, and this effect is negated with the larger angle cases. A notable difference we observe is that the Surface and Elastic Energy vs. Time plots break their common pattern observed at higher angle variations. Although the higher angled cases have a larger amount of deflection occurrence, the elastic energy get considerably lower with the higher angles, which results in the surface energy transitioning to a point in which the maximum of the elastic energy never intersects with the surface energy values. This is one of the effects observed with the higher angle cases, which can be related to the Elastic Limit being reached much quicker for these cases. This signals the tradeoff between the Elastic Limit of the material decreasing, while the deflection occurrence and G c increases with the higher angle variations. This is a very important consideration when observing these materials and applying them to the engineering world. Overall, it is quiet clear that in terms of deflection, the higher angle cases are a clear benefit to the toughness of the material; however, when considering the stress concentration at the stress tip, the lower angled cases showcase a more preferable case. Along with this, we see that the change in the angles must be rather extreme, with values of 10 • to 25 • often having a negligible effect at the lower defect densities. However, we see that with the higher defect densities, there are considerably increased benefits compared to the lower defect densities, and the angled cases show more variation as the defects are increased. The energy analysis also shows that the higher angled cases show a lesser elastic energy capacity, with the surface energy having constantly higher values than the elastic energy.