Functional metamaterials

Snapping mat deformation

Functional metamaterial that can snap between two stable configurations


The response of highly deformable architectures can be programmed to impart a series of desirable functionalities, such as extraordinary geometric changes and conformational rearrangements, highly non-linear mechanical responses, and unusual mechanical properties. For instance, the soft metamaterial shown in the picture above can be made to snap into distinct reversible configurations, a behaviour that can potentially serve to generate morphing, deployable and adaptive structures.

Relevant publications

Rafsanjani A, Akbarzadeh AH, Pasini D, Snapping Mechanical Metamaterials under TensionAdvanced Materials 27: 5931-5935, 2015. PDF_logo
[featured in Nature Materials PDF_logoScientific American Briefings 4 (39) PDF_logo] [Adv Mater Frontispiece PDF_logovideo_logo

Shang X, Liu L, Rafsanjani A, Pasini D, Durable Bistable Auxetics Made of Rigid SolidsJournal of Materials Research – Focus Issue: Architected Materials, Vol. 33 (3), pp. 300-308, 2018. PDF_logo. [Featured in the MRS Bulletin]

Rafsanjani A, Pasini D, Bistable Auxetic Mechanical Metamaterials Inspired by Ancient Geometric MotifsExtreme Mechanics Letters, Vol 9(2), 291-296 2016. PDF_logo video_logo
[related News coverage of APS March Meeting on BBC]