摘要
Kirigami-engineering has become an avenue for realizing multifunctional metamaterials that tap into the instability landscape of planar surfaces embedded with cuts.Recently,it has been shown that two-dimensional Kirigami motifs can unfurl a rich space of out-of-plane deformations,which are programmable and controllable across spatial scales.Notwithstanding Kirigami’s versatility,arriving at a cut layout that yields the desired functionality remains a challenge.Here,we introduce a comprehensive machine learning framework to shed light on the Kirigami design space and to rationally guide the design and control of Kirigami-based materials from the meta-atom to the metamaterial level.We employ a combination of clustering,tandem neural networks,and symbolic regression analyses to obtain Kirigami that fulfills specific design constraints and inform on their control and deployment.Our systematic approach is experimentally demonstrated by examining a variety of applications at different hierarchical levels,effectively providing a tool for the discovery of shape-shifting Kirigami metamaterials.
基金
H.D.E.acknowledges the financial support from a Multi-University Research Initiative through the Air Force Office of Scientific Research(AFOSR-FA9550-15-1-0009)
NSF through award No.CMMI-1953806
Army Research Office(ARO)through awards W911NF1510068
N.A.A.and H.D.E.gratefully acknowledge financial support from the Roberto Rocca Education Program(RREP)
This work made use of the NUFAB facility of Northwestern University’s NUANCE Center,which has received support from the SHyNE Resource(NSF ECCS-2025633)
the IIN,and Northwestern’s MRSEC program(NSF DMR-1720139).