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Related Experiment Video

Updated: Apr 14, 2026

Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls

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Published on: April 12, 2018

Morphable architected materials with topologically variable and volumetric reconfiguration.

Kai Xiao¹, Yuhao Wang¹, Chao Song²

¹Global College, Shanghai Jiao Tong University, Shanghai 200240, Shanghai, China. Jaehyung.Ju@sjtu.edu.cn.

Materials Horizons

|April 13, 2026

Summary

This summary is machine-generated.

We developed a new inverse design framework for 3D architected materials that allows for shape changes in all dimensions. This enables tunable mechanical properties and shape locking without material phase transitions.

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Area of Science:

Materials Science and Engineering
Mechanical Engineering
Computational Design

Background:

Morphable architected materials offer tunable properties via geometry, but current methods are limited to 1D/2D transformations.
Existing strategies often preserve topology and rely on material phase changes for shape retention, limiting volumetric tunability and structural options.

Purpose of the Study:

To present a general inverse design framework for topologically variable and volumetric morphing of 3D architected materials.
To enable reversible morphing between 2D and 3D configurations with shape locking capabilities.

Main Methods:

Combining volumetric mapping of bistable modular origami unit cells with kinematic constraints for flat foldability.
Utilizing kinetic constraints to induce structural bistability for shape locking via mechanical instability.
Developing an inverse design approach for topologically variable and volumetric morphing.

Main Results:

Demonstrated reversible morphing between flat 2D and diverse 3D geometries, including shapes with different Euler characteristics.
Achieved functional bistability with stable undeployed and deployed configurations through mechanical instability, not material phase transitions.
Enabled a single architected material to exhibit widely tunable bulk and shear moduli and programmable structural responses.

Conclusions:

Established a unified paradigm for inverse-designed morphable architected materials with shape locking.
Enabled energy-efficient fabrication of complex 3D structures with unprecedented volumetric tunability.
Unlocked a new materials design space for architected materials with tunable mechanical properties.