Non-planar shearing auxetic structures, devices, and methods
US10850406B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2018 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Oct 18, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S901/32
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Non-planar shearing auxetic structures, devices, and methods are provided herein. In some embodiments, a non-planar shearing auxetic structure can include a mathematically compact surface with an auxetic pattern of repeating unit cells. The shearing auxetic structure can have a contracted configuration and an expanded configuration, and, when in the compact configuration, can be configured to move to the expanded configuration while generating a net shear on the surface. Shearing auxetic structures can have handedness and, in some embodiments, multiple handed shearing auxetic structures can be joined to create rigid or semi-rigid composite structures, e.g., by arranging differently-handed structures concentrically wherein two or more structures lock against each other. Handed shearing auxetic structures can also provide actuators to convert rotation or other motion to translation, volume expansion, bending, twisting, etc. These structures have many applications, e.g., deployable structures such as pressure vessels, space habitats, fluid carrying vessels, soft robotics, toys, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.