Dynamic Bending Behaviour of Sandwich Structures for Marine Applications
This paper examines the mechanical performance of fibre-reinforced composite sandwich structures (FRPSSs) for maritime applications, focusing on the impact bending and damage sequence after seawater exposure. Glass-fibre/epoxy facesheets with various PVC foam core configurations underwent low-veloci...
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MDPI AG
2024-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/23/11110 |
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| author | Norman Osa-uwagboe Vadim V. Silberschmidt Emrah Demirci |
| author_facet | Norman Osa-uwagboe Vadim V. Silberschmidt Emrah Demirci |
| author_sort | Norman Osa-uwagboe |
| collection | DOAJ |
| description | This paper examines the mechanical performance of fibre-reinforced composite sandwich structures (FRPSSs) for maritime applications, focusing on the impact bending and damage sequence after seawater exposure. Glass-fibre/epoxy facesheets with various PVC foam core configurations underwent low-velocity single and multiple impacts. An in situ moisture-uptake methodology monitored moisture ingress until saturation. Results showed moisture uptake reduced impact bending capacity and bending stiffness to varying degrees. While energy-absorption performance remained largely unchanged under single impacts, significant differences were noted for multiple impacts. Failure analysis confirmed the reductions in some damage modes such as facesheet fracture, indentation, and core shear failures, while core shearing, delamination, core/facesheet debonding, and fibre breakage were identified as the main failure modes. These insights enhance understanding and optimisation of FRPSSs for improved out-of-plane damage resistance in marine applications. |
| format | Article |
| id | doaj-art-87456b89f9a146be90a8bddc5903e039 |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-87456b89f9a146be90a8bddc5903e0392025-08-20T02:50:13ZengMDPI AGApplied Sciences2076-34172024-11-0114231111010.3390/app142311110Dynamic Bending Behaviour of Sandwich Structures for Marine ApplicationsNorman Osa-uwagboe0Vadim V. Silberschmidt1Emrah Demirci2Wolfson School of Mechanical, Electrical, and Manufacturing Engineering, Loughborough University, Loughborough, Leicestershire LE11 3TU, UKWolfson School of Mechanical, Electrical, and Manufacturing Engineering, Loughborough University, Loughborough, Leicestershire LE11 3TU, UKWolfson School of Mechanical, Electrical, and Manufacturing Engineering, Loughborough University, Loughborough, Leicestershire LE11 3TU, UKThis paper examines the mechanical performance of fibre-reinforced composite sandwich structures (FRPSSs) for maritime applications, focusing on the impact bending and damage sequence after seawater exposure. Glass-fibre/epoxy facesheets with various PVC foam core configurations underwent low-velocity single and multiple impacts. An in situ moisture-uptake methodology monitored moisture ingress until saturation. Results showed moisture uptake reduced impact bending capacity and bending stiffness to varying degrees. While energy-absorption performance remained largely unchanged under single impacts, significant differences were noted for multiple impacts. Failure analysis confirmed the reductions in some damage modes such as facesheet fracture, indentation, and core shear failures, while core shearing, delamination, core/facesheet debonding, and fibre breakage were identified as the main failure modes. These insights enhance understanding and optimisation of FRPSSs for improved out-of-plane damage resistance in marine applications.https://www.mdpi.com/2076-3417/14/23/11110composite sandwichimpact bendingmoisture uptakeacoustic emissionX-ray micro-CT |
| spellingShingle | Norman Osa-uwagboe Vadim V. Silberschmidt Emrah Demirci Dynamic Bending Behaviour of Sandwich Structures for Marine Applications Applied Sciences composite sandwich impact bending moisture uptake acoustic emission X-ray micro-CT |
| title | Dynamic Bending Behaviour of Sandwich Structures for Marine Applications |
| title_full | Dynamic Bending Behaviour of Sandwich Structures for Marine Applications |
| title_fullStr | Dynamic Bending Behaviour of Sandwich Structures for Marine Applications |
| title_full_unstemmed | Dynamic Bending Behaviour of Sandwich Structures for Marine Applications |
| title_short | Dynamic Bending Behaviour of Sandwich Structures for Marine Applications |
| title_sort | dynamic bending behaviour of sandwich structures for marine applications |
| topic | composite sandwich impact bending moisture uptake acoustic emission X-ray micro-CT |
| url | https://www.mdpi.com/2076-3417/14/23/11110 |
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