Multifunctional cellular sandwich structures with optimised core topologies for improved mechanical properties and energy harvesting performance


This paper developed a multifunctional composite sandwich structure with optimised design on topological cores. As the main concern, full composite sandwich structures were manufactured with carbon fibre reinforced polymer (CFRP) facesheets and designed cores. Three-point bending tests have been performed to assess the mechanical performance of designed cellular sandwich structures. To evaluate the energy harvesting performance, the piezoelectric transducer was integrated at the interface between the upper facesheet and core, with both sinusoidal base excitation input and acceleration measured from real cruising aircraft and vehicle. It has been found that the sandwich with conventional honeycomb core has demonstrated the best mechanical performance, assessed under the bending tests. In terms of energy harvesting performance, sandwich with re-entrant honeycomb manifested approximately 20% higher RMS voltage output than sandwiches with conventional honeycomb and chiral structure core, evaluated both numerically and experimentally. The resistance sweep tests further suggested that the power output from sandwich with re-entrant honeycomb core was twice as large as that from sandwiches with conventional honeycomb and chiral structure cores, under optimal external resistance and sinusoidal base excitation.

Publication DOI:
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
College of Engineering & Physical Sciences > Aston Institute of Urban Technology and the Environment (ASTUTE)
College of Engineering & Physical Sciences
Additional Information: © 2022, Elsevier Ltd. This accepted manuscript version is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
Uncontrolled Keywords: Piezoelectric energy harvesting,Polymer-matrix composites (PMCs),Smart materials,Vibration,Ceramics and Composites,Mechanics of Materials,Mechanical Engineering,Industrial and Manufacturing Engineering
Publication ISSN: 1879-1069
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.sci ... 2785?via%3Dihub (Publisher URL)
PURE Output Type: Article
Published Date: 2022-06-01
Published Online Date: 2022-04-19
Accepted Date: 2022-04-11
Authors: Chen, Boyue
Jia, Yu (ORCID Profile 0000-0001-9640-1666)
Narita, Fumio
Wang, Congsi
Shi, Yu



Version: Accepted Version

Access Restriction: Restricted to Repository staff only until 19 April 2023.

License: Creative Commons Attribution Non-commercial No Derivatives

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