Related Experiment Video
Updated: Aug 6, 2026
09:39
Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
Published on: June 28, 2024
Geometry-Encoded Programmable Mechanics in Single-Material Dual-Phase Metamaterials
Miao Zhao1, Na Qiu2, Xuhui Zhang1
1School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Sichuan, China.
Small (Weinheim an Der Bergstrasse, Germany)
|July 24, 2026
Summary
This study introduces novel dual-phase (DP) metamaterials using single-material lattice architectures for programmable mechanical responses. These engineered metamaterials offer enhanced energy absorption and customizable properties for advanced applications.
Area of Science:
- Materials Science
- Mechanical Engineering
- Metamaterials Science
Background:
- Programmable metamaterials are crucial for advanced engineering but often require complex multi-material fabrication.
- Existing additive manufacturing methods face challenges with multi-material systems.
Purpose of the Study:
- To develop a novel class of dual-phase (DP) metamaterials using a single material with programmable mechanical responses.
- To overcome fabrication challenges associated with multi-material metamaterials.
Main Methods:
- Inspired by nacre's architecture, DP metamaterials were designed with spatially encoded soft (bending-dominated) and hard (stretching-dominated) lattice phases.
- Systematic variation of phase patterns explored geometry-based mechanical encoding and internal stress redistribution.
- A data-driven framework was developed to model spatial encoding-response relationships for inverse design.
Main Results:
- DP metamaterials exhibited programmable nonlinear mechanical responses and tailored failure processes.
- Engineered failure mechanisms and phase coupling led to enhanced energy absorption and tunable plateau stress.
- The data-driven model enabled rapid inverse design of metamaterials for specific target responses.
Conclusions:
- This work presents a new geometry-based strategy for creating highly programmable mechanical responses in single-material metamaterials.
- The developed DP metamaterials offer a pathway to multifunctional engineering applications with improved performance and simplified fabrication.
Related Concept Videos
01:10Dual Nature of Electromagnetic (EM) Radiation
Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the number of...
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the number of...
02:31Phase Transitions
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to occupy...
01:19Phase Diagram
The phase of a given substance depends on the pressure and temperature. Thus, plots of pressure versus temperature showing the phase in each region provide considerable insights into the thermal properties of substances. Such plots are known as phase diagrams. For instance, in the phase diagram for water (Figure 1), the solid curve boundaries between the phases indicate phase transitions (i.e., temperatures and pressures at which the phases coexist).
02:39Phase Diagrams
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
01:28Symmetry in Maxwell's Equations
Once the fields have been calculated using Maxwell's four equations, the Lorentz force equation gives the force that the fields exert on a charged particle moving with a certain velocity. The Lorentz force equation combines the force of the electric field and of the magnetic field on the moving charge. Maxwell's equations and the Lorentz force law together encompass all the laws of electricity and magnetism. The symmetry that Maxwell introduced into his mathematical framework may not be...
01:30Plane Electromagnetic Waves I
The existence of combined electric and magnetic fields that propagate through space as electromagnetic (EM) waves is the most significant prediction of Maxwell's equations. As Maxwell's equations hold in free space, the predicted electromagnetic waves do not require a medium for their propagation. An EM wave comprises an electric field, defined as the force per charge on a stationary charge, and a magnetic field, which is the force per charge on a moving charge.
The EM field is assumed to be a...
The EM field is assumed to be a...