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Origami-based cellular metamaterial with auxetic, bistable, and self-locking properties
Soroush Kamrava1, Davood Mousanezhad1, Hamid Ebrahimi1
1Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA 02115, USA.
Scientific Reports
|April 8, 2017
Summary
This study introduces a novel cellular metamaterial using Miura-ori origami folds, demonstrating unique properties like auxeticity and bistability for load-bearing applications.
Area of Science:
- Materials Science
- Mechanical Engineering
- Robotics
Background:
- Cellular metamaterials offer unique mechanical properties.
- Origami-inspired structures provide design versatility.
- Miura-ori fold is a well-known origami pattern with specific folding characteristics.
Purpose of the Study:
- To introduce a novel cellular metamaterial based on Miura-ori origami folds.
- To investigate the unusual properties arising from its geometry and construction.
- To understand the folding kinematics and force response for potential applications.
Main Methods:
- Analytical modeling to describe folding kinematics and force response.
- Experimental validation of the proposed metamaterial's behavior.
- Characterization of properties such as foldability, auxeticity, bistability, and self-locking.
Main Results:
- The cellular metamaterial exhibits two distinct fully-folded configurations.
- Demonstrated auxetic behavior (negative Poisson's ratio).
- Observed bistability and self-locking capabilities for constructing load-bearing structures.
Conclusions:
- The Miura-ori based cellular metamaterial possesses unique and tunable properties.
- The folding mechanisms enable versatile applications in structural design.
- This work lays the foundation for advanced origami-inspired metamaterials.