Fracture initiation and propagation in unidirectional CF composites based on thermoplastic acrylic resins
| Autor: | Tommaso Pini, Francesco Briatico-Vangosa, Francesco Caimmi, R. Frassine, Marta Rink |
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| Rok vydání: | 2017 |
| Předmět: |
Toughness
Thermoplastic Materials science Composite number 02 engineering and technology Matrix (mathematics) Fracture toughness 0203 mechanical engineering Natural rubber Infusion moulding General Materials Science Matrix toughness Viscoelasticity Thermoplastic composites Fibre bridging Infusion moulding Composite material Acrylic resin chemistry.chemical_classification Matrix toughness Mechanical Engineering Viscoelasticity Fracture mechanics 021001 nanoscience & nanotechnology Fibre bridging 020303 mechanical engineering & transports Thermoplastic composites chemistry Mechanics of Materials visual_art visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Engineering Fracture Mechanics. 184:51-58 |
| ISSN: | 0013-7944 |
| Popis: | The fracture behaviour of continuous unidirectional carbon fibre composite materials prepared adopting two, one plain and one rubber toughened, thermoplastic acrylic resins as matrices was investigated as a function of temperature and displacement rate. The contributions to fracture toughness of composites given by the matrix and the fibre related mechanisms was analysed by comparing results obtained at crack initiation and during crack propagation stages. It was verified that the transfer of matrix toughness into the composite is only partial when the matrix process zone size is comparable to the interlaminar matrix layer thickness. The effectiveness of fibre bridging mechanism was found to be related to the interfacial strength between the matrix and the fibre. |
| Databáze: | OpenAIRE |
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