The effect of mesostructure heterogeneity on cracks initiation and the displacement distribution in NCF composites
| العنوان: | The effect of mesostructure heterogeneity on cracks initiation and the displacement distribution in NCF composites |
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| المؤلفون: | Z Ayadi, Janis Varna, H Zrida, K Giannadis |
| المصدر: | IOP Conference Series: Materials Science and Engineering. 31:012023 |
| بيانات النشر: | IOP Publishing, 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Materials science, Turbine blade, Waviness, Composite number, Stiffness, Kompositmaterial och -teknik, Epoxy, law.invention, law, Electronic speckle pattern interferometry, visual_art, Crimp, visual_art.visual_art_medium, medicine, Fiber, Composite material, medicine.symptom, Composite Science and Engineering |
| الوصف: | Non Crimp Fabrics (NCF) are promising new generation composite materials. They are now being used in some sections of composite industry, for example in wind turbine blades and boat hulls. The aerospace industry also shows an increasing interest in this material, thanks to the low cost of its manufacturing process. NCFs are special types of textile composites, made of layers of parallel fiber bundles oriented in different directions and separated by resin. Due to the manufacturing process the fiber bundles are not perfectly straight. They show a certain degree of waviness which decreases the stiffness and the strength of the material. The heterogeneous mesostructure affects the mechanical properties of the material and the failure mechanisms. This was studied using both numerical and experimental methods. In our experimental approach, a carbon fiber/epoxy resin laminate with uniform fiber distribution was manufactured by voluntarily introducing waviness to simulate the NCF composites. The displacement map was studied against the thickness of a sample loaded in tension, using ESPI (Electronic Speckle Pattern Interferometry). This can give us a primary idea of the micro damage initiation and the cracks' shapes. Validerad; 2012; 20111206 (ysko) |
| وصف الملف: | application/pdf |
| تدمد: | 1757-899X 1757-8981 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c64a393c79c1429a8fbd9a01825aca85 https://doi.org/10.1088/1757-899x/31/1/012023 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c64a393c79c1429a8fbd9a01825aca85 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1757899X 17578981 |
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