Tensile and flexural properties of epoxy laminates with natural papaya bast fibre cellular layers
This work focuses on the fabrication and characterisation of epoxy composites reinforced with natural fibre layers extracted from the inner bast (phloem) of the papaya plant (Carica papaya) under tensile and three-point bending loading. The papaya phloem is composed of fibrous laminas that wrap and...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-10-01
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| Series: | Composites Part C: Open Access |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666682020300177 |
| _version_ | 1818595105808842752 |
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| author | Gabriela Luiza Cota Coura Rodrigo Teixeira Santos Freire Júlio César dos Santos Lívia Ávila de Oliveira Fabrizio Scarpa Túlio Hallak Panzera |
| author_facet | Gabriela Luiza Cota Coura Rodrigo Teixeira Santos Freire Júlio César dos Santos Lívia Ávila de Oliveira Fabrizio Scarpa Túlio Hallak Panzera |
| author_sort | Gabriela Luiza Cota Coura |
| collection | DOAJ |
| description | This work focuses on the fabrication and characterisation of epoxy composites reinforced with natural fibre layers extracted from the inner bast (phloem) of the papaya plant (Carica papaya) under tensile and three-point bending loading. The papaya phloem is composed of fibrous laminas that wrap and reinforce the stem of the plant. A set of quasi-periodically arranged holes disrupt the continuity of these layers, through which the branches emerge. The fibres in each layer constitute an anisotropic honeycomb-like structure, whose elongated cells align along a single preferential direction. Papaya-reinforced epoxy composites are fabricated by hand lay-up and evaluated using two full-factorial designs based on the fibre-to-load direction in longitudinal (0°) and transverse (90°) conditions, for configurations without holes and alternating holes. Composites made with randomly-oriented short fibres are also evaluated along with the first experiment. The tensile and flexural properties obtained are compared to other materials in the literature to assess its potential as a structural material. The results show that the papaya bast fibre layers can be a promising reinforcement for polymeric composites. |
| first_indexed | 2024-12-16T11:10:44Z |
| format | Article |
| id | doaj.art-442fd358c46c4318b51f3a5d41b0ba85 |
| institution | Directory Open Access Journal |
| issn | 2666-6820 |
| language | English |
| last_indexed | 2024-12-16T11:10:44Z |
| publishDate | 2020-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Composites Part C: Open Access |
| spelling | doaj.art-442fd358c46c4318b51f3a5d41b0ba852022-12-21T22:33:45ZengElsevierComposites Part C: Open Access2666-68202020-10-012100017Tensile and flexural properties of epoxy laminates with natural papaya bast fibre cellular layersGabriela Luiza Cota Coura0Rodrigo Teixeira Santos Freire1Júlio César dos Santos2Lívia Ávila de Oliveira3Fabrizio Scarpa4Túlio Hallak Panzera5Centre for Innovation and Technology in Composite Materials – CITeC, Department of Mechanical Engineering, Federal University of São João del Rei - UFSJ, 36307-344, BrazilCentre for Innovation and Technology in Composite Materials – CITeC, Department of Mechanical Engineering, Federal University of São João del Rei - UFSJ, 36307-344, Brazil; Department of Natural Sciences – Federal University of São João del Rei – UFSJ, Brazil; Corresponding author at: Centre for Innovation and Technology in Composite Materials – CITeC, Department of Mechanical Engineering, Federal University of São João del Rei - UFSJ, 36307-344, Brazil.Centre for Innovation and Technology in Composite Materials – CITeC, Department of Mechanical Engineering, Federal University of São João del Rei - UFSJ, 36307-344, BrazilCentre for Innovation and Technology in Composite Materials – CITeC, Department of Mechanical Engineering, Federal University of São João del Rei - UFSJ, 36307-344, Brazil; Department of Natural Sciences – Federal University of São João del Rei – UFSJ, BrazilBristol Composites Institute (ACCIS), University of Bristol, UKCentre for Innovation and Technology in Composite Materials – CITeC, Department of Mechanical Engineering, Federal University of São João del Rei - UFSJ, 36307-344, BrazilThis work focuses on the fabrication and characterisation of epoxy composites reinforced with natural fibre layers extracted from the inner bast (phloem) of the papaya plant (Carica papaya) under tensile and three-point bending loading. The papaya phloem is composed of fibrous laminas that wrap and reinforce the stem of the plant. A set of quasi-periodically arranged holes disrupt the continuity of these layers, through which the branches emerge. The fibres in each layer constitute an anisotropic honeycomb-like structure, whose elongated cells align along a single preferential direction. Papaya-reinforced epoxy composites are fabricated by hand lay-up and evaluated using two full-factorial designs based on the fibre-to-load direction in longitudinal (0°) and transverse (90°) conditions, for configurations without holes and alternating holes. Composites made with randomly-oriented short fibres are also evaluated along with the first experiment. The tensile and flexural properties obtained are compared to other materials in the literature to assess its potential as a structural material. The results show that the papaya bast fibre layers can be a promising reinforcement for polymeric composites.http://www.sciencedirect.com/science/article/pii/S2666682020300177Papaya bast fibreLaminated compositeHoneycomb-like structureMechanical properties |
| spellingShingle | Gabriela Luiza Cota Coura Rodrigo Teixeira Santos Freire Júlio César dos Santos Lívia Ávila de Oliveira Fabrizio Scarpa Túlio Hallak Panzera Tensile and flexural properties of epoxy laminates with natural papaya bast fibre cellular layers Composites Part C: Open Access Papaya bast fibre Laminated composite Honeycomb-like structure Mechanical properties |
| title | Tensile and flexural properties of epoxy laminates with natural papaya bast fibre cellular layers |
| title_full | Tensile and flexural properties of epoxy laminates with natural papaya bast fibre cellular layers |
| title_fullStr | Tensile and flexural properties of epoxy laminates with natural papaya bast fibre cellular layers |
| title_full_unstemmed | Tensile and flexural properties of epoxy laminates with natural papaya bast fibre cellular layers |
| title_short | Tensile and flexural properties of epoxy laminates with natural papaya bast fibre cellular layers |
| title_sort | tensile and flexural properties of epoxy laminates with natural papaya bast fibre cellular layers |
| topic | Papaya bast fibre Laminated composite Honeycomb-like structure Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2666682020300177 |
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