We use a regular arrangement of kirigami elements to demonstrate an inverse design paradigm for folding a flat surface into complex target configurations. We first present a scheme using arrays of disclination defect pairs on the dual to the honeycomb lattice; by arranging these defect pairs properly with respect to each other and choosing an appropriate fold pattern a target stepped surface can be designed. We then present a more general method that specifies a fixed lattice of kirigami cuts to be performed on a flat sheet. This single pluripotent lattice of cuts permits a wide variety of target surfaces to be programmed into the sheet by varying the folding directions.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4475981 | PMC |
http://dx.doi.org/10.1073/pnas.1506048112 | DOI Listing |
Proc Natl Acad Sci U S A
November 2024
Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ 08544.
The concepts of origami and kirigami have often been presented separately. Here, we put forth a synergistic approach-the folded kirigami-in which kirigami assemblies are complemented by means of folding, typical of origami patterns. Besides the emerging patterns themselves, the synergistic approach also leads to topological mechanical metamaterials.
View Article and Find Full Text PDFPhilos Trans A Math Phys Eng Sci
October 2024
Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA.
A periodic surface is one that is invariant by a two-dimensional lattice of translations. Deformation modes that stretch the lattice without stretching the surface are effective membrane modes. Deformation modes that bend the lattice without stretching the surface are effective bending modes.
View Article and Find Full Text PDFAdv Sci (Weinh)
June 2024
Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, China.
ACS Nano
September 2023
Key Laboratory of Image Information Processing and Intelligent Control of Education Ministry of China, School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
Reconfigurable DNA origami provides a versatile tool to manipulate the conformation of matter on the nanometer scale. Typically, the DNA kirigami method enables the transformation of an origami structure from an initial shape to another predesigned shape by reconfiguring the staple strands. In a regular origami structure, since the perfectly matched and densely packed DNA duplexes block the removal of staple strands, the construction of finely trimmed "sub-origami" structures by the DNA kirigami method has remained challenging.
View Article and Find Full Text PDFFront Robot AI
May 2022
Collaborative Robotics and Intelligent Systems Institute, Oregon State University, Corvallis, OR, United States.
The locomotion of soft snake robots is dependent on frictional interactions with the environment. Frictional anisotropy is a morphological characteristic of snakeskin that allows snakes to engage selectively with surfaces and generate propulsive forces. The prototypical slithering gait of most snakes is lateral undulation, which requires a significant lateral resistance that is lacking in artificial skins of existing soft snake robots.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!