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Related Experiment Video

Updated: Jul 7, 2026

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Published on: May 14, 2016

2D material-enhanced multi-fold self-sensing and programmable deployable lattice structure.

Aoun Hussnain¹, Siddhesh Kulkarni¹, Kamran A Khan^2,3

¹Department of Aerospace Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates.

Scientific Reports

|August 30, 2024

Summary

This summary is machine-generated.

Researchers developed a smart composite structure that monitors deployment and self-repairs. This intelligent shape memory polymer composite (iSMPC) offers advanced capabilities for deployable structures and soft robotics.

Keywords:

Auxetic composite Deployable structure Graphene Piezoresistive sensor Shape memory polymer

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Last Updated: Jul 7, 2026

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Area of Science:

Materials Science
Composite Materials
Smart Structures

Background:

Intelligent and programmable smart composite structures capable of shape recovery are crucial for applications like deployable structures and soft robots.
Existing shape memory materials have limitations in monitoring and controlled deployment.

Purpose of the Study:

To develop a deployable structure that can intelligently monitor its deployment and be programmed for specific deployment patterns.
To create a multifunctional composite material with shape memory, auxetic, and sensing properties.

Main Methods:

Fabrication of an intelligent auxetic structure (A-iSMPC) by embedding an intelligent fabric within a polyurethane-based shape memory polymer matrix.
Characterization of the A-iSMPC's thermal and piezoresistive sensing properties, shape memory behavior, and mechanical enhancements.

Main Results:

The A-iSMPC exhibited a negative Poisson's ratio of -0.44, indicating auxetic behavior.
Achieved a shape recovery ratio of 96% and a shape fixity ratio of 88%.
Demonstrated effective monitoring of temperature and strain during shape programming and recovery.

Conclusions:

The developed A-iSMPC is a multifunctional material with shape memory, auxetic, thermal, and piezoresistive sensing capabilities.
The intelligent fabric reinforcement enhanced mechanical properties and enabled self-monitoring.
This iSMPC holds significant potential for diverse applications requiring intelligent and deployable structures.