A comparative study of the creep behavior of laminated composites: Effect of type of fiber and matrix
| Autor: | J. Kari, Abdelbaki Benmounah, D. Basaid, Brahim Safi, Chouaib Aribi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Morphology (linguistics)
Materials science Composite number General Engineering General Physics and Astronomy Modulus 02 engineering and technology General Medicine Epoxy 021001 nanoscience & nanotechnology General Biochemistry Genetics and Molecular Biology 020303 mechanical engineering & transports 0203 mechanical engineering Creep visual_art Ultimate tensile strength visual_art.visual_art_medium Fiber Composite material 0210 nano-technology General Agricultural and Biological Sciences Tensile testing |
| Zdroj: | Scientific Research and Essays. 12:59-68 |
| ISSN: | 1992-2248 |
| Popis: | This paper presents the effect of matrix type on creep behavior at 80% loads of ultimate tensile strength of two laminated composites at different fiber and matrix system. For this, two types of laminated composites were manufactured based on two types of fibers (carbon fabric and glass fabric) with different matrix systems EPOCAST 50-A1 (EP50-A), Epoxy STR (STR) and Epoxy INJ812 (INJ). The tensile and creep behavior of each laminated composite was studied in the same test conditions. A microstructural study was also investigated by SEM-microscopy on the morphology of composite specimens after creep rupture failures at 80% of applied load. The obtained results showed clearly the influence of matrix type used on the tensile and creep behavior of studied composites. Indeed, it was noted that no creep rupture failures were observed in short-term (less than 4 h) for INJ/Carbon composite at tensile creep tests at 80% loads of ultimate tensile strength. At the same ultimate tensile strength, EP50/Carbon composite showed a best creep behavior up to 30 h and had a creep modulus higher than other laminated composites. The observation of rupture facets of all composite samples showed clearly that the rupture will take place in the direction of loading, creating voids at the interface resin/fiber. These are observed based on the nature of the matrix used. Key words: Epoxy, aliphatic amine, cross-linked, carbon fabric, glass fabric, creep test, cyclic tensile test. |
| Databáze: | OpenAIRE |
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