Evaluating the temperature and glass fibre reinforcement effects on the damping properties of the shape memory polymers
Paper
Paper/Presentation Title | Evaluating the temperature and glass fibre reinforcement effects on the damping properties of the shape memory polymers |
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Presentation Type | Paper |
Authors | Al Azzawi, Wessam (Author), Epaarachchi, Jayantha A. (Author) and Leng, Jinsong (Author) |
Journal or Proceedings Title | Proceedings of the 21st International Conference on Composite Materials (ICCM-21) |
Number of Pages | 7 |
Year | 2017 |
Place of Publication | China |
Web Address (URL) of Paper | https://www.iccm-central.org/Proceedings/ICCM21proceedings/papers/3246.pdf |
Web Address (URL) of Conference Proceedings | https://www.iccm-central.org/Proceedings/ICCM21proceedings/index.htm |
Conference/Event | 21st International Conference on Composite Materials (ICCM-21) |
Event Details | 21st International Conference on Composite Materials (ICCM-21) Parent International Conference on Composite Materials Delivery In person Event Date 20 to end of 25 Aug 2017 Event Location Xi’an, China |
Abstract | Shape memory polymers (SMPs) are novel class of active polymers that have a unique ability to undergo a substantial shape deformation and subsequently recover the original shape when exposed to a particular external stimulus. In the past, more attention has given to the shape memory alloys (SMA) than the SMP because unreinforced SMPs have substantial lower mechanical characteristics. Though when reinforced with continuous fibres their properties dramatically improve. SMPs and their composites (SMPCs) have been used in a vast range of applications from biomedical devices to morphing and deployable structures. However, dynamic mechanical analysis has shown that SMPs have promising damping characteristics that give them significance in the control of structural noise and vibration applications by just control the SMP temperature. In this paper, styrene base SMP and its woven glass fibre SMPCs have been tested to investigate their damping properties. Dynamic mechanical analyzer (DMA Q800) has used to evaluate the loss factor of both neat and composite samples, and LMS SCADAS data acquisition systems has used inside thermal control chamber to examine the damping efficiency at different temperatures where two temperatures (25oC and 65oC) have investigated. DMA results revealed that, near the glass transition temperature, neat SMP has shown loss factor up to (1), however fibre reinforcement has reduced this value in the SMPC samples. Furthermore, glass fibre reinforcement has reduced damping ratio from 0.3 for SMP to 0.07 for SMPC. Results have also shown that temperature increase from room temperature to 65oC has increased the damping ratio by 33% for the SMP sample and 6 times increment for the SMPC sample. |
Keywords | SMP, Damping ratio |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
401609. Polymers and plastics | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Future Materials |
Harbin Institute of Technology, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4x28/evaluating-the-temperature-and-glass-fibre-reinforcement-effects-on-the-damping-properties-of-the-shape-memory-polymers
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