Print Email Facebook Twitter Cyclic aging analysis of CFRP and GFRP composite laminates Title Cyclic aging analysis of CFRP and GFRP composite laminates Author Moazzami, Mostafa (Iran University of Science and Technology) Ayatollahi, M. R. (Iran University of Science and Technology) Akhavan-Safar, Alireza (INEGI) Teixeira De Freitas, S. (TU Delft Structural Integrity & Composites) da Silva, Lucas F.M. (Universidade do Porto) Date 2023 Abstract When a composite laminate is subjected to humidity, moisture diffusion occurs depending on the number and thickness of the lamina. Water diffusion changes the mechanical response of laminates and usually causes a significant reduction of the mechanical properties of the composite specimens in ocean structures. One of the most important mechanical properties of laminates is flexural stiffness which should be considered in the design procedure. Despite the extensive research on single cycle aging of composites, cyclic aging of these materials is less explored. The aim of the current research is to investigate the variation of mechanical properties of carbon fiber reinforced polymer (CFRP) and glass fiber reinforced polymer (GFRP) composites as a substrate in adhesive joints with the same initial flexural stiffness values subjected to cyclic wet/dry aging conditions for long-term structural applications. The matrix used in the CFRP and GFRP composites are based on epoxy and vinyl ester, respectively. Both unaged and cyclically aged samples were characterized by tensile and three-point bending tests. In order to simulate the moisture absorption condition of composites in adhesive joints, one side of the composite laminates was sealed with aluminum foils and three sides were exposed to humidity. The interaction between the composite thickness and the number of aging cycles was also investigated. The experimental results show that in cyclic aging condition, the reduction of flexural stiffness in CFRP is more than GFRP laminates and GFRP laminates is more suitable for ocean applications. Subject Composite laminatecyclic agingtensile and flexural propertieswater diffusion To reference this document use: http://resolver.tudelft.nl/uuid:8cd3954d-c332-4887-b3e6-32355ad962e3 DOI https://doi.org/10.1177/00219983231185100 Embargo date 2023-12-01 ISSN 0021-9983 Source Journal of Composite Materials, 57 (20), 3213-3229 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public Part of collection Institutional Repository Document type journal article Rights © 2023 Mostafa Moazzami, M. R. Ayatollahi, Alireza Akhavan-Safar, S. Teixeira De Freitas, Lucas F.M. da Silva Files PDF moazzami_et_al_2023_cycli ... inates.pdf 1.96 MB Close viewer /islandora/object/uuid:8cd3954d-c332-4887-b3e6-32355ad962e3/datastream/OBJ/view