2022-046 – Programmable Perforated P Shellular Mechanical Metamaterials

New 3D reconfigurable multistable P shellular metamaterialHigh surface area, stiffness, and energy absorption with the multistability conceptStrong rigidity both in loading and unloading and enhanced energy dissipation
  • New 3D reconfigurable multistable P shellular metamaterial
  • High surface area, stiffness, and energy absorption with the multistability concept
  • Strong rigidity both in loading and unloading and enhanced energy dissipation

Website:

https://mcgill.flintbox.com/technologies/0D19918AB0A0400CA14817F703877710

Advantages:

We have developed a new 3D reconfigurable multistable P shellular metamaterial by introducing delicate perforations on the P shellular surface, integrating unique properties of shellular materials such as high surface area, stiffness, and energy absorption with the multistability concept. Denoting the fundamental snapping part by motif, certain shellular motifs with elliptical perforations exhibit mechanical bistability. To bring the concept of multistability to a single motif and remove support box to achieve ultra-light material, we have developed multistable shellular motifs by introducing multilayer staggered perforations that forms hinges and facilitate local instability. Harnessing snap-through and snap-back behaviors and self-contact, the introduced multistable perforated shellulars exhibit strong rigidity both in loading and unloading and enhanced energy dissipation.

Potential Applications:

The introduced design strategy opens up new horizons for creating low density multidirectional multistable metamaterials with load bearing capabilities for applications in soft robotics, shape morphing architectures, and reusable and deployable energy absorbers/dampers.

Contact Information:

Name : MAHAUT RICCIARDI-RIGAULT

Email : mahaut.ricciardi-rigault@mcgill.ca

Phone : 514-451-7724