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Temperature Dependent Deformation

Temperature Dependent Deformation

In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...

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Related Experiment Video

Updated: Jan 7, 2026

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Published on: June 28, 2024

Digital shape-morphing thermo-mechanical metamaterials.

Roshira Premadasa¹, Zhe Wan¹, Pouya Almasi¹

¹Department of Civil Engineering, New Mexico State University, Las Cruces, NM, USA. qianyunz@nmsu.edu.

Materials Horizons

|January 5, 2026

Summary

This summary is machine-generated.

Researchers developed digital shape-morphing thermo-mechanical metamaterials (DSTMs) that sense stimuli, adapt shape, and compute digitally. These multifunctional metamaterials enable programmable logic gates and autonomous systems.

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Area of Science:

Materials Science
Mechanical Engineering
Computational Science

Background:

Intelligent mechanical systems require multifunctional capabilities like sensing, actuation, and computation.
Existing systems often lack integrated functionalities for autonomous operation.

Purpose of the Study:

To introduce digital shape-morphing thermo-mechanical metamaterials (DSTMs) with integrated sensing, shape-morphing, and digital computation capabilities.
To demonstrate the potential of DSTMs for creating advanced autonomous systems.

Main Methods:

Integrating mechanical metamaterials with temperature-responsive components and digital electronics.
Designing modular DSTM unit cells for programmable shape morphing and logic gate construction.
Utilizing theoretical, numerical, and experimental studies for validation.

Main Results:

DSTMs exhibit sensing of thermal and mechanical stimuli, programmable shape morphing, and autonomous deformation.
Demonstrated implementation of digital logic gates (AND, NAND, OR, NOR, XOR, XNOR) through mechanical and thermal processing.
Showcased temperature-induced shape morphing, shape recoverability, and modal bifurcation.

Conclusions:

DSTMs offer a novel platform for multifunctional intelligent mechanical systems.
The developed metamaterials enable morphology-based computation and programmable shape changes.
DSTMs pave the way for advancements in soft robotics, adaptive structures, and medical devices.