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3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability
In this study, a soft structure with its stiffness tunable by an external field is proposed. The proposed soft beam structure consists of a skin structure with channels filled with a magnetorheological fluid (MRF). Two specimens of the soft structure are fabricated by three-dimensional printing and...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6843154/ https://www.ncbi.nlm.nih.gov/pubmed/31569486 http://dx.doi.org/10.3390/mi10100655 |
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author | Hong, Seong-Woo Yoon, Ji-Young Kim, Seong-Hwan Lee, Sun-Kon Kim, Yong-Rae Park, Yu-Jin Kim, Gi-Woo Choi, Seung-Bok |
author_facet | Hong, Seong-Woo Yoon, Ji-Young Kim, Seong-Hwan Lee, Sun-Kon Kim, Yong-Rae Park, Yu-Jin Kim, Gi-Woo Choi, Seung-Bok |
author_sort | Hong, Seong-Woo |
collection | PubMed |
description | In this study, a soft structure with its stiffness tunable by an external field is proposed. The proposed soft beam structure consists of a skin structure with channels filled with a magnetorheological fluid (MRF). Two specimens of the soft structure are fabricated by three-dimensional printing and fused deposition modeling. In the fabrication, a nozzle is used to obtain channels in the skin of the thermoplastic polyurethane, while another nozzle is used to fill MRF in the channels. The specimens are tested by using a universal tensile machine to evaluate the relationships between the load and deflection under two different conditions, without and with permanent magnets. It is empirically shown that the stiffness of the proposed soft structure can be altered by activating the magnetic field. |
format | Online Article Text |
id | pubmed-6843154 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-68431542019-11-25 3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability Hong, Seong-Woo Yoon, Ji-Young Kim, Seong-Hwan Lee, Sun-Kon Kim, Yong-Rae Park, Yu-Jin Kim, Gi-Woo Choi, Seung-Bok Micromachines (Basel) Article In this study, a soft structure with its stiffness tunable by an external field is proposed. The proposed soft beam structure consists of a skin structure with channels filled with a magnetorheological fluid (MRF). Two specimens of the soft structure are fabricated by three-dimensional printing and fused deposition modeling. In the fabrication, a nozzle is used to obtain channels in the skin of the thermoplastic polyurethane, while another nozzle is used to fill MRF in the channels. The specimens are tested by using a universal tensile machine to evaluate the relationships between the load and deflection under two different conditions, without and with permanent magnets. It is empirically shown that the stiffness of the proposed soft structure can be altered by activating the magnetic field. MDPI 2019-09-29 /pmc/articles/PMC6843154/ /pubmed/31569486 http://dx.doi.org/10.3390/mi10100655 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hong, Seong-Woo Yoon, Ji-Young Kim, Seong-Hwan Lee, Sun-Kon Kim, Yong-Rae Park, Yu-Jin Kim, Gi-Woo Choi, Seung-Bok 3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability |
title | 3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability |
title_full | 3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability |
title_fullStr | 3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability |
title_full_unstemmed | 3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability |
title_short | 3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability |
title_sort | 3d-printed soft structure of polyurethane and magnetorheological fluid: a proof-of-concept investigation of its stiffness tunability |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6843154/ https://www.ncbi.nlm.nih.gov/pubmed/31569486 http://dx.doi.org/10.3390/mi10100655 |
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