Liquid‐Crystal‐Elastomer‐Based Dissipative Structures by Digital Light Processing 3D Printing

• DOI: 10.1002/adma.202000797
• Publication Date: 2020-06-08T08:00:26Z
• Authors: Nicholas A. Traugutt; Devesh Mistry; Chaoqian Luo; Kai Yu; Qi Ge; Christopher M. Ya...
• Keywords: Digital Light Processing

Abstract Digital Light Processing (DLP) 3D printing enables the creation of hierarchical complex structures with specific micro‐ and macroscopic architectures that are impossible to achieve through traditional manufacturing methods. Here, this hierarchy is extended mesoscopic length scale for optimized devices dissipate mechanical energy. A photocurable, thus DLP‐printable main‐chain liquid crystal elastomer (LCE) resin reported used print a variety complex, high‐resolution energy‐dissipative devices. Using compressive testing, stress–strain responses 3D‐printed LCE lattice shown have 12 times greater rate‐dependence up 27 strain–energy dissipation compared those printed from commercially available photocurable resin. The behaviors these provide further insight into much‐overlooked energy‐dissipation properties LCEs can inspire development high‐energy‐absorbing device applications.