Abstract
Current in situ damage detection of fibre-reinforced composites typically uses sensors which are attached to the structure. This may make periodic inspection difficult for complex part geometries or in locations which are difficult to reach. To overcome these limitations, we examine the use of piezoelectric materials in the form of macro-fibre composites that are embedded into carbon fibre–reinforced polymer composites. Such a multi-material system can provide an in situ ability for damage detection, sensing or energy harvesting. In this work, the piezoelectric devices are embedded between the carbon fibre prepreg, and heat treated at elevated temperatures, enabling complete integration of the piezoelectric element into the structure. The impact of processing temperature on the properties of the macro-fibre composites are assessed, in particular with respect to the Curie temperature of the embedded ferroelectric. The mechanical properties of the carbon fibre–reinforced polymer composites are evaluated to assess the impact of the piezoelectric on tensile strength. The performance of the embedded piezoelectric devices to transmit and receive ultrasonic signals is evaluated, along with the potential to harvest power from mechanical strain for self-powered systems. Such an approach provides a route to create multi-functional materials.
Original language | English |
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Pages (from-to) | 1910-1919 |
Number of pages | 10 |
Journal | Journal of Intelligent Material Systems and Structures |
Volume | 31 |
Issue number | 16 |
Early online date | 21 Jul 2020 |
DOIs | |
Publication status | Published - 1 Sept 2020 |
Keywords
- Carbon fibre–reinforced polymer
- energy harvesting
- inspection
- piezoelectric
- sensing
- smart materials
ASJC Scopus subject areas
- Materials Science(all)
- Mechanical Engineering
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Chris Bowen
- Department of Mechanical Engineering - Professor
- Centre for Sustainable and Circular Technologies (CSCT)
- Centre for Nanoscience and Nanotechnology
- Institute for Mathematical Innovation (IMI)
- Faculty of Engineering and Design - Associate Dean (Research)
- Institute for Sustainability
- Centre for Integrated Materials, Processes & Structures (IMPS)
- EPSRC Centre for Doctoral Training in Advanced Automotive Propulsion Systems (AAPS CDT)
- Institute for Advanced Automotive Propulsion Systems (IAAPS)
Person: Research & Teaching, Core staff, Affiliate staff
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Charles Courtney
- Department of Mechanical Engineering - Lecturer
- Centre for Integrated Materials, Processes & Structures (IMPS)
- EPSRC Centre for Doctoral Training in Advanced Automotive Propulsion Systems (AAPS CDT)
- Institute for Advanced Automotive Propulsion Systems (IAAPS)
Person: Research & Teaching, Core staff, Affiliate staff