Conformable Multifunctional Space Fabric by Metal 3D Printing for Collision Hazard Protection and Self-Powered Monitoring

Sun, Yanshuo; Li, Chengyu; Xu, Zijie; Cao, Yaxing; Sheng, Hengrui; Wang, Zhong Lin; Cao, Leo N.Y.

doi:10.1021/acsami.3c15232

ACS Appl. Mater. Interfaces

2023

DOI: 10.1021/acsami.3c15232

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Conformable Multifunctional Space Fabric by Metal 3D Printing for Collision Hazard Protection and Self-Powered Monitoring

Yanshuo Sun,

Chengyu Li,

Zijie Xu

et al.

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2024

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A new concept of structural smart fabric activated by shape memory alloys

Mariotti,

Patriarca,

Rossoni

et al. 2024

Smart Mater. Struct.

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This work presents the development, prototyping and validation of a new concept of structure called Structural Smart Fabric (SSF). An SSF is a chainmail fabric composed by interconnected elements, called cells, which can be stiffened by reactive elements, such as those made by Shape Memory Alloy (SMA). Exploiting the shape memory functionality, SSFs are capable of sensing and reacting to external stimuli. Based on this concept, in this study we propose an SSF that integrates SMA wires into a 3D-printed chainmail structure. The shape memory effect of these wires is used as an actuating mechanism that, at high temperature, tightens the adjacent cells together and provides increased structural stiffness. In this study, finite element simulations were initially conducted to enhance the comprehension of the SSF’s mechanical behaviour. The influence of the initial cell spacing on the SSF stiffness and the wire stress profiles was evaluated during bending loading, as well as the evolution of contact pressure profiles between adjacent cells. This numerical approach enabled to tune the design of the SSF prototypes which were successively manufactured using Selective Laser Sintering (SLS) additive manufacturing technology with PA12. After the integration with the SMA wires, the SSF prototypes were tested under a 3-point bending configuration at different temperatures. The results revealed a remarkable increase in structural stiffness at elevated temperatures compared to ambient conditions. This study set the basis for a deeper understanding of SSF's unique capabilities and potential applications in fields where adaptive and responsive structures are required.

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A new concept of structural smart fabric activated by shape memory alloys

Mariotti,

Patriarca,

Rossoni

et al. 2024

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

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Conformable Multifunctional Space Fabric by Metal 3D Printing for Collision Hazard Protection and Self-Powered Monitoring

Cited by 1 publication

References 57 publications

A new concept of structural smart fabric activated by shape memory alloys

A new concept of structural smart fabric activated by shape memory alloys

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