Fiber-based shape-morphing architectures
Andrei Zakharov, Len M. Pismen, Leonid Ionov · arXiv · 2019
Actuated Janus composite fibers can be tuned (via material properties, geometry, and actuation conditions) to reliably morph into multiple target 3D shapes, informing advanced mechanical metamaterial design.
Plain English summary
Why this matters
Key findings
- Shape transformations of fiber-assembled structures depend on actuation conditions such as strain rate, as well as fiber composition and structure geometry.
- Bending experiments are used to establish how to achieve multiple out-of-plane shapes in closed rings and square frames.
- Theory and simulation are used to examine how Janus-fiber mechanical properties affect shape transitions.
- Target 3D shapes can be attained by tuning material properties and geometry of the fibers.
Limitations
The abstract does not specify quantitative performance metrics, the range of achievable shapes, durability/cycling behavior, actuation method details, or validation beyond the described ring/frame demonstrations.
Publication
- Publisher
- arXiv
- Publication date
- December 12, 2019
- Research type
- Preprint
- arXiv
- 1912.05709
- Access
- open
Tags
More on Mechanical Metamaterials
See all →Bio-inspired re-entrant honeycomb metamaterial with programmable dual-plateau mechanical response
A bio-inspired re-entrant honeycomb mechanical metamaterial is described as having a programmable dual-plateau mechanical response.
A Review of Machine Learning Applications in Mechanical Metamaterial Design
The review summarizes how machine learning models and end-to-end workflows can accelerate mechanical metamaterial design and property prediction using simulation-based validation.
Heat breaks the rules at the nanoscale and scientists used it to their advantage
Nanoscale gold metamaterials can boost heat transfer across tiny gaps by up to 4×, enabling more efficient thermal management and precision heat engineering.
Reprogrammable metamaterial robot with embodied versatile computation and mechanical intelligence
A reprogrammable metamaterial robot is presented as combining versatile computation with mechanical intelligence.
Real-time reprogrammable snapping mechanical metamaterial with nonlinear force-displacement responses
A real-time reprogrammable snapping mechanical metamaterial is reported to exhibit nonlinear force–displacement responses.
A auxetic metamaterial structure: analysis of shear and bending, mechanical characterization
Auxetic (negative Poisson’s ratio) re-entrant unit-cell designs integrated into bone screws improved load-bearing capacity and deformation resistance under shear and bending versus conventional screws.
Recently published
Latest research →Modelling the thermo-mechanical responses and shape recovery performance of particle-reinforced shape memory polymer composites in cold and hot programming
A study focused on modeling thermo-mechanical behavior and shape recovery of particle-reinforced shape-memory polymer composites when programmed in cold versus hot conditions.
Functional Shape Recovery Response of Heat-Treated NiTiCu SHAPE Memory Alloy Wire
Heat treatment of NiTiCu shape memory alloy wires enhances their shape recovery response, achieving a high recovery ratio.
Dorsiventrally Bicolored Leaf‐Inspired Metamaterial Absorbers for Tailorable Electromagnetic Absorption
This research proposes a bioinspired metamaterial that achieves high-performance, tailorable electromagnetic absorption across a broad frequency range.
A Deformable Robot Based on Shape Memory Alloy and Phase Change Metal
This research presents a novel deformable robot that integrates Shape Memory Alloys and phase change metals for enhanced adaptability and locomotion.