Use origami and kirigami to stimulate reconstructable yet structural materials

A reconfigurable metamaterial that can be folded flat (AO2) in a pattern other than the original pattern (O3) or deployed in two different configurations (A2O and A3) that are rigid and load-bearing. Credit: Damiano Pasini et al.

Origami, a Japanese art that folds origami into decorative shapes and shapes, has long served as an inspiration for industrial design. The concept of folding has been used to build reconfigurable structures that change function by changing shape. These structures are promising for applications such as nanorobots for drug delivery, foldable solar panels for aerospace, and deformable cladding and shading for architecture. However, most of these designs cannot withstand heavy loads. Things that can only be done in a specific direction will collapse along the folding direction. This limits its use as a structural material.

A study by a group of researchers at McGill University may provide a solution to this limitation.By merging the concepts from origami Kirigami is a method of folding and cutting paper, and researchers have developed a class of cellular metamaterials that can be folded flat and fixed in several positions that are stiff in multiple directions.

“Their load-bearing capacity, flat foldability, and reprogrammability are available for specific submarines, reconfigurable robots, and deployable structures that include small amounts of packaging,” said the Department of Mechanical Engineering. Damiano Pasini, a professor and principal investigator of the study, said. .. “Our metamaterials have been rigid in several directions, but rigid and flat foldable metamaterials are an unprecedented attribute in the current literature.”

The study was published in Nature Communications..

Origami and kirigami stimulate the design of mechanical metamaterials

For more information:
Amin Jamalimehr et al, a metamaterial inspired by topologically rigid, rigid, flat-foldable class lockable origami, Nature Communications (2022). DOI: 10.1038 / s41467-022-29484-1

Provided by
McGill University

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