Fig. 6: Mechanical properties of the printed silicone and polymer foam in comparison with molded counterparts.
From: Multi-material direct ink writing of photocurable elastomeric foams

a Stress–strain curve for 3D printed and molded dumbbell test pieces. Individual “x” marks represent break points per sample. 3D printed samples categorized by their print directions: vertical, horizontal, and cross (Supplementary Fig. 8) for silicone prints and only cross for foam prints. Shaded regions represent one standard deviation. b Young’s modulus comparison based on fabrication type and print direction. Ultimate strength (c), elongation at break (d), and toughness (e) comparisons based on fabrication type and print direction. Error bars represent one standard deviation.