The exotic properties of mechanical metamaterials emerge from the topology of micro-structural elements. Once manufactured, however, the metamaterials have fixed properties without the ability to adapt and adjust. Here, we present geometrically reconfigurable, functionally deployable, and mechanically tunable lightweight metamaterials created through four-dimensional (4D) printing. Using digital micro 3D printing with a shape memory polymer, dramatic and reversible changes in the stiffness, geometry, and functions of the metamaterials are achieved.
Bibliographical noteFunding Information:
This work was supported by Rutgers University through the School of Engineering and the Department of Mechanical and Aerospace Engineering, Defense Acquisition Program Administration and Agency for Defense Development (UD150032GD), and Haythornthwaite Foundation Research Ignition Grant. R. M. acknowledges support from Rutgers University Mechanical and Aerospace Engineering and New Jersey Space Grant Consortium (RUMAE-NJSGC) Summer Research Cluster. The authors would like to thank Professor Edward DeMauro for the permission to use the high-speed camera and Professor Ashutosh Goel for the permission to use the FTIR.
© 2019 The Royal Society of Chemistry.
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Process Chemistry and Technology
- Electrical and Electronic Engineering