Science & Technology

The ancient art of origami and kirigami stimulates mechanical metamaterials

Origami-based and kirigami-based metamaterials have applications from robotics to medical devices.

Origami’s ancient origami and paper-cutting paper have become popular in recent years among researchers who make mechanical metamaterials. When folding and cutting 2D thin film materials, they are transformed into complex 3D structures and shapes with unique programmable mechanical properties.

of Applied Physics ReviewAccording to AIP Publishing, researchers in the United States and China have created mechanical metamaterials based on origami and kirigami, artificially designed materials with anomalous mechanical properties, based on two different criteria. It is divided into 6 groups.

“Origami and kirigami are essentially mechanical metamaterials, because their properties are largely determined by the crease pattern and how the cut is made, and are slightly dependent on the material from which the origami or kirigami is folded. “The author, Hanchin Jean, said.

Origami and kirigami-based mechanical metamaterials

A category of origami and kirigami-based mechanical metamaterials. Credits: Zirui Zhai and Hanqing Jiang

Researchers have found three mechanical metamaterials, including origami-based metamaterials (origami only), kirigami-based metamaterials (cutting only), and hybrid origami-kirigami metamaterials (both origami and cutting). I classified it into categories. In particular, the hybrid metamaterial of origami and kirigami offers great potential for shape morphing.

Each group was subdivided into rigid or deformable categories based on the elastic energy landscape. Metamaterial If energy was stored only in the creases or linkages, it was classified as a rigid body. Metamaterials were classified in the deformable category when energy was stored in both creases or linkages and panels.

Researchers want to discover new origami and kirigami designs, especially curved origami designs, hybrid origami and kirigami designs, modular designs, and hierarchical designs.

They will focus on the selection of new materials for origami and kirigami-based mechanical metamaterials. Traditionally, paper has been used to prototype metamaterials, but there are limitations based on the fragility and plasticity of the paper. To design for real-world applications, it is helpful to explore materials with different properties, such as thin or thick, soft or hard, elastic or plastic.

They want to use energy landscapes and energy distributions as two powerful tools for analyzing the mechanical performance of origami and kirigami, and carefully watch how origami and kirigami-based mechanical metamaterials work. I’m trying to design.

“Origami-based and glitter-based mechanical metamaterials can be applied in many areas, including flexible electronics, medical devices, robotics, civil engineering, and aerospace engineering,” says Jiang.

Reference: “Mechanical Metamaterials Based on Origami and Kirigami”, Zirui Zhai, Lingling Wu, Hanqing Jiang, November 23, 2021 Applied Physics Review..
DOI: 10.1063 / 5.0051088

The ancient art of origami and kirigami stimulates mechanical metamaterials The ancient art of origami and kirigami stimulates mechanical metamaterials

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