What does this research mean for the field?

An optimized thermoplastic polyurethane auxetic reentrant structure with specific geometric parameters (five vertically stacked unit cells, 60-degree angle, 2 mm thickness) demonstrates superior deformation characteristics for use in soft wearable rehabilitation robotics. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To investigate and optimize thermoplastic polyurethane (TPU) auxetic structures with negative Poisson's ratios for use in soft muscle actuators in wearable rehabilitation robotics.

August 22, 2026Engineering Computations

Auxetic soft muscle actuators for enhanced flexibility in lower wearable rehabilitation robotics

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Authors

MBMostafa Boghdady AFAhmed Foaud OHOmar Helal

Discussion

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Overview

Finite element analysis demonstrates an optimal thermoplastic polyurethane auxetic structure for soft muscle actuators, suggesting enhanced flexibility in wearable rehabilitation robotics.

Key Points

To investigate and optimize thermoplastic polyurethane (TPU) auxetic structures with negative Poisson's ratios for use in soft muscle actuators in wearable rehabilitation robotics.
Utilized finite element analysis (FEA) to evaluate various re-entrant auxetic unit cell configurations under applied mechanical loads.
Systematically varied design parameters including angle, cut width, thickness, length, footage, cell count, and column count.
Identified the optimal actuator geometry consisting of five vertically stacked unit cells arranged in five columns with a 60-degree angle, 100% internal through cut, 2 mm thickness, 17 mm footage, and 6 mm inner side length.
Demonstrated superior mechanical deformation characteristics under applied loads relative to alternative configurations.

Cite This Study

Boghdady et al. (2026) studied this question.

synapsesocial.com/papers/6a895eaeca7ade938187cbee https://doi.org/10.1108/ec-08-2025-0962

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August 22, 2026Engineering Computations

Auxetic soft muscle actuators for enhanced flexibility in lower wearable rehabilitation robotics

View Full Paper

Ask AI

Bookmark

Authors

MBMostafa Boghdady AFAhmed Foaud OHOmar Helal

Discussion

Member takes

Overview

Finite element analysis demonstrates an optimal thermoplastic polyurethane auxetic structure for soft muscle actuators, suggesting enhanced flexibility in wearable rehabilitation robotics.

Key Points

To investigate and optimize thermoplastic polyurethane (TPU) auxetic structures with negative Poisson's ratios for use in soft muscle actuators in wearable rehabilitation robotics.
Utilized finite element analysis (FEA) to evaluate various re-entrant auxetic unit cell configurations under applied mechanical loads.
Systematically varied design parameters including angle, cut width, thickness, length, footage, cell count, and column count.
Identified the optimal actuator geometry consisting of five vertically stacked unit cells arranged in five columns with a 60-degree angle, 100% internal through cut, 2 mm thickness, 17 mm footage, and 6 mm inner side length.
Demonstrated superior mechanical deformation characteristics under applied loads relative to alternative configurations.

Cite This Study

Boghdady et al. (2026) studied this question.

synapsesocial.com/papers/6a895eaeca7ade938187cbee https://doi.org/10.1108/ec-08-2025-0962

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