4D printed shape memory polymer composite structures for deployable small spacecrafts

Herath, Madhubhashitha ORCID: https://orcid.org/0000-0002-6796-0802 and Islam, Mainul and Epaarachchi, Jayantha and Zhang, Fenghua and Leng, Jinsong (2019) 4D printed shape memory polymer composite structures for deployable small spacecrafts. In: ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS 2019), 9-11 Sept 2019, Louisville, Kentucky, Unite States.


Four dimensional (4D) printing is the convergence of three dimensional (3D) printing, which is an emerging additive manufacturing technology for smart materials. 4D printing is referred to the capability of changing the shape, property, or functionality of a 3D printed structure under a particular external stimulus. This paper presents the structural performance, shape memory behavior and photothermal effect of 4D printed pristine shape memory polymer (SMP) and it’s composite (SMPC) with multi-walled carbon nanotubes (MWCNTs). Both materials have demonstrated the ability to retain a temporary shape and then recover their original. It is revealed that the incorporation of MWCNTs into the SMP matrix has enhanced the light stimulus shape recovery capabilities. Light stimulus shape transformation of 4D printed SMPC is advantageous for space engineering applications as light can be focused onto a particular area at a long distance. Subsequently, a model 4D printed deployable boom, which is applicable for small spacecrafts is presented. The shape fixity and recovery behaviors of the proposed boom have been investigated. Notably, the model boom structure has demonstrated ∼86 % shape recovery ratio. The proposed innovative approach of additive manufacturing based deployable composite structures will shape up the future space technologies.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 15 May 2020 02:51
Last Modified: 03 Jun 2020 05:51
Uncontrolled Keywords: 4D printing, shape memory polymer composites, deployable space structures, structural performance, photothermal effect
Fields of Research (2008): 09 Engineering > 0901 Aerospace Engineering > 090103 Aerospace Structures
09 Engineering > 0910 Manufacturing Engineering > 091099 Manufacturing Engineering not elsewhere classified
09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
Fields of Research (2020): 40 ENGINEERING > 4001 Aerospace engineering > 400102 Aerospace structures
40 ENGINEERING > 4014 Manufacturing engineering > 401499 Manufacturing engineering not elsewhere classified
40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials
Identification Number or DOI: https://doi.org/10.1115/SMASIS2019-5583
URI: http://eprints.usq.edu.au/id/eprint/37460

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