| Revista: | Maderas : ciencia y tecnología |
| Base de datos: | |
| Número de sistema: | 000534494 |
| ISSN: | 0718-221X |
| Autores: | Alves dos Santos Bravo, Cintia Grazielle1 Nunes Branco, Luiz Antonio Melgaço2 Chahud, Eduardo3 de Moura Aquino, Vinicius Borges4 Pereira Geraldes Dias, Alfredo Manuel5 Christoforo, Andre Luis4 Lahr, Francisco Antonio Rocco6 |
| Instituciones: | 1Estacio University Department of Civil Engineering, Belo Horizonte. Brasil 2FUMEC University Department of Civil Engineering, Belo Horizonte. Brasil 3Federal University of Minas Gerais Department of Civil Engineering, Belo Horizonte. Brasil 4Federal University of São Carlos Department of Civil Engineer, São Carlos. Brasil 5University of Coimbra Department of Civil Engineering, Coimbra. Portugal 6University of São Paulo Department of Structures Engineering, São Carlos. Brasil |
| Año: | 2020 |
| Volumen: | 22 |
| Número: | 1 |
| Paginación: | 37-44 |
| País: | Chile |
| Idioma: | Inglés |
| Resumen en inglés | In wood structures, the elements subjected to bending stresses, such as the beams, present a fracture initiated in the tensile region, and under these conditions, the use of laminated composite materials is presented as an alternative solution in the form of repair or reinforcement. This research aimed to evaluate the influence of the use of carbon fibers laminated composites in tensile reinforcement in the direction parallel to grain of Pinus elliotti and Manilkara huberi wood species. The Viapol two-component epoxy adhesive was used in the lamination and fixation of the unidirectional carbon fiber in the wood species. Ten specimens with no defects (reference) and 10 specimens were prepared for each crack length (25 and 50mm) with and without the reinforcement (60mm × 50mm) by the laminated composite. The tensile tests were performed in accordance with the requirements of the Brazilian standard. From the results of the statistical analysis, the use of the carbon fiber composite was able to restore the tensile strength of the cracked samples (partial or total) in relation to samples without defects, demonstrating the potential of the laminates in carbon fibers as an alternative solution in repair for both wood species. |
| Keyword: | Damaged structures, Laminated composites, Reinforcement, Carbon fiber epoxy adhesive, Tension strength parallel. |
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