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Updated: Jan 22, 2026
06:07
Studying Large Amplitude Oscillatory Shear Response of Soft Materials
Published on: April 25, 2019
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Cellular materials with tunable bistability integrating prominent soft and stiff properties.
Jiacheng Wu1, Zhiqiang Meng2, Pengfei Li1
1School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China. fanyang@tongji.edu.cn.
Materials Horizons
|January 20, 2026
Summary
This study introduces novel lightweight cellular materials that can switch between soft and stiff states. These bistate materials offer tunable mechanical properties for applications like adaptive protection and shock absorption.
Area of Science:
- Materials Science
- Mechanics of Materials
- Cellular Materials
Background:
- Developing materials with both softness and stiffness is essential for advanced applications.
- Existing multistable materials often face trade-offs between performance and weight across different states.
Purpose of the Study:
- To pioneer the soft-stiff responsive strategy in lightweight cellular materials.
- To create materials that can be reconfigured between soft and stiff states.
Main Methods:
- Architecturally nesting two materials with contrasting properties.
- Experimental, theoretical, and numerical demonstrations of state switching.
- Characterization of mechanical properties in both soft and stiff states.
Main Results:
- Demonstrated switchability between soft and stiff states in cellular materials.
- The soft state exhibits high perturbation sensitivity and vibration isolation.
- The stiff state shows significantly enhanced load-carrying capacity (e.g., 668.78x modulus, 1037.55x strength increase).
Conclusions:
- The proposed bistate cellular materials offer tunable mechanical properties and robust switchability.
- These materials hold promise for applications in adaptive protection, shock absorption, and beyond.
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