The Out-Of-Plane Compression Behavior of In Situ Ethylene Vinyl Acetate (EVA)-Foam-Filled Aluminum Honeycomb Sandwich Structures
In this study, the mechanical behavior of aluminum honeycomb (AHC) sandwich structures filled with ethylene vinyl acetate copolymer (EVA) foam in situ under out-of-plane compression loading was investigated experimentally. Both non-filled and EVA-foam-filled sandwich specimens with three different A...
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MDPI AG
2023-07-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/15/5350 |
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| author | Tuğba Selcen Atalay Kalsen Hakan Burak Karadağ Yasin Ramazan Eker |
| author_facet | Tuğba Selcen Atalay Kalsen Hakan Burak Karadağ Yasin Ramazan Eker |
| author_sort | Tuğba Selcen Atalay Kalsen |
| collection | DOAJ |
| description | In this study, the mechanical behavior of aluminum honeycomb (AHC) sandwich structures filled with ethylene vinyl acetate copolymer (EVA) foam in situ under out-of-plane compression loading was investigated experimentally. Both non-filled and EVA-foam-filled sandwich specimens with three different AHC core cell sizes (5.20, 6.78, and 8.66 mm) were studied to correlate the foam-filling effect with a key structural parameter. The results showed that compression characteristic properties such as peak stress, plateau stress, and absorbed energy per unit volume of the sandwich structure increased with EVA foam filling. The structure showed high recoverability when the compression loading was removed due to the viscoelastic nature of EVA foam. Cored EVA sandwich with 8.66 mm AHC cell size was recovered at 44% of the original thickness. This result promises groundbreaking applications such as impact-resistant and self-healing structures. The microstructures were also observed using scanning electron microscopy (SEM) to investigate the failure and the recoverability mechanisms. |
| first_indexed | 2024-03-11T00:23:37Z |
| format | Article |
| id | doaj.art-99ec78e2c3a5433aa80d3c2d0e5ca4f4 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T00:23:37Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-99ec78e2c3a5433aa80d3c2d0e5ca4f42023-11-18T23:12:09ZengMDPI AGMaterials1996-19442023-07-011615535010.3390/ma16155350The Out-Of-Plane Compression Behavior of In Situ Ethylene Vinyl Acetate (EVA)-Foam-Filled Aluminum Honeycomb Sandwich StructuresTuğba Selcen Atalay Kalsen0Hakan Burak Karadağ1Yasin Ramazan Eker2Department of Metallurgical and Materials Engineering, Köyceğiz Campus, Necmettin Erbakan University, Meram, Konya 42090, TurkeyDepartment of Metallurgical and Materials Engineering, Köyceğiz Campus, Necmettin Erbakan University, Meram, Konya 42090, TurkeyResearch and Application Center of Science and Technology (BİTAM), Köyceğiz Campus, Necmettin Erbakan University, Meram, Konya 42090, TurkeyIn this study, the mechanical behavior of aluminum honeycomb (AHC) sandwich structures filled with ethylene vinyl acetate copolymer (EVA) foam in situ under out-of-plane compression loading was investigated experimentally. Both non-filled and EVA-foam-filled sandwich specimens with three different AHC core cell sizes (5.20, 6.78, and 8.66 mm) were studied to correlate the foam-filling effect with a key structural parameter. The results showed that compression characteristic properties such as peak stress, plateau stress, and absorbed energy per unit volume of the sandwich structure increased with EVA foam filling. The structure showed high recoverability when the compression loading was removed due to the viscoelastic nature of EVA foam. Cored EVA sandwich with 8.66 mm AHC cell size was recovered at 44% of the original thickness. This result promises groundbreaking applications such as impact-resistant and self-healing structures. The microstructures were also observed using scanning electron microscopy (SEM) to investigate the failure and the recoverability mechanisms.https://www.mdpi.com/1996-1944/16/15/5350aluminum honeycombout-of-plane compressionethylene vinyl acetate foamin situ foamingspringback |
| spellingShingle | Tuğba Selcen Atalay Kalsen Hakan Burak Karadağ Yasin Ramazan Eker The Out-Of-Plane Compression Behavior of In Situ Ethylene Vinyl Acetate (EVA)-Foam-Filled Aluminum Honeycomb Sandwich Structures Materials aluminum honeycomb out-of-plane compression ethylene vinyl acetate foam in situ foaming springback |
| title | The Out-Of-Plane Compression Behavior of In Situ Ethylene Vinyl Acetate (EVA)-Foam-Filled Aluminum Honeycomb Sandwich Structures |
| title_full | The Out-Of-Plane Compression Behavior of In Situ Ethylene Vinyl Acetate (EVA)-Foam-Filled Aluminum Honeycomb Sandwich Structures |
| title_fullStr | The Out-Of-Plane Compression Behavior of In Situ Ethylene Vinyl Acetate (EVA)-Foam-Filled Aluminum Honeycomb Sandwich Structures |
| title_full_unstemmed | The Out-Of-Plane Compression Behavior of In Situ Ethylene Vinyl Acetate (EVA)-Foam-Filled Aluminum Honeycomb Sandwich Structures |
| title_short | The Out-Of-Plane Compression Behavior of In Situ Ethylene Vinyl Acetate (EVA)-Foam-Filled Aluminum Honeycomb Sandwich Structures |
| title_sort | out of plane compression behavior of in situ ethylene vinyl acetate eva foam filled aluminum honeycomb sandwich structures |
| topic | aluminum honeycomb out-of-plane compression ethylene vinyl acetate foam in situ foaming springback |
| url | https://www.mdpi.com/1996-1944/16/15/5350 |
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