Topology-optimized 4D printing of a soft actuator

Zolfagharian, Ali, Denk, Martin, Bodaghi, Mahdi, Kouzani, Abbas Z. and Kaynak, Akif 2019, Topology-optimized 4D printing of a soft actuator, Acta mechanica solida sinica, pp. 1-13, doi: 10.1007/s10338-019-00137-z.

Title Topology-optimized 4D printing of a soft actuator
Author(s) Zolfagharian, Ali
Denk, Martin
Bodaghi, Mahdi
Kouzani, Abbas Z.ORCID iD for Kouzani, Abbas Z.
Kaynak, AkifORCID iD for Kaynak, Akif
Journal name Acta mechanica solida sinica
Start page 1
End page 13
Total pages 13
Publisher Springer Singapore
Place of publication Singapore
Publication date 2019-09
ISSN 0894-9166
Keyword(s) Topology optimization
4D printing
3D printing
Soft actuator
Summary Soft robots and actuators are emerging devices providing more capabilities in the field of robotics. More flexibility and compliance attributing to soft functional materials used in the fabrication of these devices make them ideal for delivering delicate tasks in fragile environments, such as food and biomedical sectors. Yet, the intuitive nonlinearity of soft functional materials and their anisotropic actuation in compliant mechanisms constitute an existent challenge in improving their performance. Topology optimization (TO) along with four-dimensional (4D) printing is a powerful digital tool that can be used to obtain optimal internal architectures for the efficient performance of porous soft actuators. This paper employs TO analysis for achieving high bending deflection of a 3D printed polyelectrolyte actuator, which shows bending deformations in response to electrical stimuli in an electrolyte solution. The performance of the actuator is studied in terms of maximum bending and actuation rate compared with a solid, uniformly 3D printed and topology-optimized actuator. The experimental results proved the effectiveness of TO on achieving higher bending deformation and actuation rate against a uniformly 3D printed actuator.
Notes Article in Press
Language eng
DOI 10.1007/s10338-019-00137-z
Indigenous content off
Field of Research 0905 Civil Engineering
0912 Materials Engineering
0913 Mechanical Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2019, The Chinese Society of Theoretical and Applied Mechanics
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