Combined hygrothermal aging and mechanical loading effect on unidirectional glass/epoxy composites
dc.contributor.author | Angrizani, Clarissa Coussirat | pt_BR |
dc.contributor.author | Oliveira, Branca Freitas de | pt_BR |
dc.contributor.author | Lorandi, Natália Pagnoncelli | pt_BR |
dc.contributor.author | Ornaghi Junior, Heitor Luiz | pt_BR |
dc.contributor.author | Amico, Sandro Campos | pt_BR |
dc.date.accessioned | 2023-02-08T05:02:07Z | pt_BR |
dc.date.issued | 2022 | pt_BR |
dc.identifier.issn | 1478-2391 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/254404 | pt_BR |
dc.description.abstract | Composites are subjected to different use conditions. Hence, the mechanical properties under different aging conditions are crucial in the composite field. This study aims to investigate the aging effect of a glass/epoxy unidirectional composite in three distinct conditions: mechanical, hygrothermal (hot water), and combined (mechanical and hygrothermal) aging. The composites in the longitudinal [0°] and transversal [90°] directions were molded by RTM with a 37% volume fraction. The aging effects on tensile, compressive, shear, short-beam properties, and dynamic-mechanical characteristics, in 0° and 90° fiber direction, were studied. The aging conditions are affected differently, depending on the property analyzed. Comparing aged and non-aged composites, the tensile (from 380 GPa to 140 GPa and from 80 GPa to 40 GPa for non-aged and combined aging in 0° and 90° directions, respectively) and compressive strength (from 250 MPa to 50 MPa and from 100 MPa to 25 MPa for non-aged and combined aging in 0° and 90° directions, respectively) showed greater relative drop than the elastic modulus (a decrease of 3–4 GPa for all aging analyzed compared to the no-aged composites) due to a deleterious effect on the interface and the chemical aging present in the polymeric matrix attenuates the deleterious effect on it. Besides, the properties measured in the 0° direction were more affected than in the 90° direction with the combined aging the most affected property. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Polymers and polymer composites [recurso eletrônico]. Thousand Oaks, CA. Vol. 30 (Jan.-Dec. 2022), p. 1-10 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Compósitos | pt_BR |
dc.subject | Resin transfer molding | en |
dc.subject | Combined aging effects | en |
dc.subject | Envelhecimento | pt_BR |
dc.subject | Hot water | en |
dc.subject | Comportamento mecânico | pt_BR |
dc.subject | Mechanical loading | en |
dc.subject | Unidirectional composite | en |
dc.title | Combined hygrothermal aging and mechanical loading effect on unidirectional glass/epoxy composites | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001160389 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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