3D printed geometrically tessellated sheets with origami-inspired patterns.

Autor: Wickeler, Anastasia L., Naguib, Hani E.
Předmět:
Zdroj: Journal of Cellular Plastics; Mar2022, Vol. 58 Issue 2, p377-395, 19p
Abstrakt: This study demonstrates that the impact energy absorption capabilities of flexible sheets can be significantly enhanced by implementing tessellated designs into their structure. Configurations of three tessellated geometries were tested; they included a triangular-based, a rectangular-based, and a novel square-based pattern. Due to their geometrical complexity, multiple configurations of these tessellations were printed from a rubber-like material using an inkjet printer with two different thicknesses (2 and 4 mm), and their ability to absorb impact energy was compared to an unpatterned inkjet-printed sheet. In addition, the effect of multi-sheets stacking was also tested. Due to the tailored structure, the impact testing showed that the single-layer sheets were more effective at absorbing impact loads, and experience less deformation, than their two-layer counterparts. The 4 mm thick tessellated patterns were most effective at absorbing impact loads; all three thick patterns measured about 40% lower impact forces transferred to the base of the samples compared to the unpatterned counterparts. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index