From Flat Plates to Sinusoidal Structures: Influence of Geometry on the Energy Absorption Capability of Carbon/Epoxy Composites
Composite structures have excellent performance related to energy absorption during crush events. Among various factors, geometry has a significant influence on the specific energy absorption (SEA) performance of composites; however, the variation of crush-induced failure mechanisms for various geom...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Journal of Composites Science |
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| Online Access: | https://www.mdpi.com/2504-477X/7/2/56 |
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| author | Mehmet Engül Nuri Ersoy |
| author_facet | Mehmet Engül Nuri Ersoy |
| author_sort | Mehmet Engül |
| collection | DOAJ |
| description | Composite structures have excellent performance related to energy absorption during crush events. Among various factors, geometry has a significant influence on the specific energy absorption (SEA) performance of composites; however, the variation of crush-induced failure mechanisms for various geometric features and the way they affect energy absorption capability have not yet been fully clarified. Moving from simple to complex composite structures, a holistic study investigating the influence of geometry on the SEA is required. This paper presents experimental and numerical investigations of the crushing process for flat plates, semi-circle geometries, and sinusoidal structures with different diameters and numbers of curvatures. In a numerical analysis, a finite element (FE) model with the idea of an artificial plug-initiator was developed for the accurate and realistic crushing behavior of sinusoidal specimens. The results were discussed and compared in terms of the observed failure mechanisms. The sinusoidal structure with the highest energy absorption capability was identified. |
| first_indexed | 2024-03-11T08:37:12Z |
| format | Article |
| id | doaj.art-cf509438e95e484187911295a1bf5840 |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-11T08:37:12Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-cf509438e95e484187911295a1bf58402023-11-16T21:23:32ZengMDPI AGJournal of Composites Science2504-477X2023-02-01725610.3390/jcs7020056From Flat Plates to Sinusoidal Structures: Influence of Geometry on the Energy Absorption Capability of Carbon/Epoxy CompositesMehmet Engül0Nuri Ersoy1Department of Mechanical Engineering, Boğaziçi University, Istanbul 34342, TurkeyDepartment of Mechanical Engineering, Boğaziçi University, Istanbul 34342, TurkeyComposite structures have excellent performance related to energy absorption during crush events. Among various factors, geometry has a significant influence on the specific energy absorption (SEA) performance of composites; however, the variation of crush-induced failure mechanisms for various geometric features and the way they affect energy absorption capability have not yet been fully clarified. Moving from simple to complex composite structures, a holistic study investigating the influence of geometry on the SEA is required. This paper presents experimental and numerical investigations of the crushing process for flat plates, semi-circle geometries, and sinusoidal structures with different diameters and numbers of curvatures. In a numerical analysis, a finite element (FE) model with the idea of an artificial plug-initiator was developed for the accurate and realistic crushing behavior of sinusoidal specimens. The results were discussed and compared in terms of the observed failure mechanisms. The sinusoidal structure with the highest energy absorption capability was identified.https://www.mdpi.com/2504-477X/7/2/56polymer compositessinusoidal structurescrashworthinessFE model |
| spellingShingle | Mehmet Engül Nuri Ersoy From Flat Plates to Sinusoidal Structures: Influence of Geometry on the Energy Absorption Capability of Carbon/Epoxy Composites Journal of Composites Science polymer composites sinusoidal structures crashworthiness FE model |
| title | From Flat Plates to Sinusoidal Structures: Influence of Geometry on the Energy Absorption Capability of Carbon/Epoxy Composites |
| title_full | From Flat Plates to Sinusoidal Structures: Influence of Geometry on the Energy Absorption Capability of Carbon/Epoxy Composites |
| title_fullStr | From Flat Plates to Sinusoidal Structures: Influence of Geometry on the Energy Absorption Capability of Carbon/Epoxy Composites |
| title_full_unstemmed | From Flat Plates to Sinusoidal Structures: Influence of Geometry on the Energy Absorption Capability of Carbon/Epoxy Composites |
| title_short | From Flat Plates to Sinusoidal Structures: Influence of Geometry on the Energy Absorption Capability of Carbon/Epoxy Composites |
| title_sort | from flat plates to sinusoidal structures influence of geometry on the energy absorption capability of carbon epoxy composites |
| topic | polymer composites sinusoidal structures crashworthiness FE model |
| url | https://www.mdpi.com/2504-477X/7/2/56 |
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