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| Naji, M. |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Zaami, Amin
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Topics
Publications (6/6 displayed)
- 2021A fully coupled local and global optical-thermal model for continuous adjacent laser-assisted tape winding process of type-IV pressure vesselscitations
- 2021Optical characterization of fiber-reinforced thermoplastic tapes for laser-based composite manufacturingcitations
- 20203D Numerical modeling of laser assisted tape winding process of composite pressure vessels and pipes-effect of winding angle, mandrel curvature and tape widthcitations
- 2020New process optimization framework for laser assisted tape winding of composite pressure vesselscitations
- 2020Temperature variation during continuous laser-assisted adjacent hoop winding of type-IV pressure vesselscitations
- 2017In-line physics-based model simulation for process modeling of laser tape winding
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article
Optical characterization of fiber-reinforced thermoplastic tapes for laser-based composite manufacturing
Abstract
The optical properties of unidirectional (UD) fiber reinforced thermoplastic (FRTP) tapes were characterized to enable a better description of the heating phase in laser-based manufacturing process of FRTP composites. The tapes included PP-GF (glass-fiber) 45% fiber volume content (FVC), PVDF-CF (carbon-fiber) 45% FVC, PVDF-CF 60% FVC and PA12-CF 60% FVC. The transmittance of the tapes was found to be 0.00–0.2% whereas the reflectance was 9.8–11.8% corresponding to a refractive index of 1.91–2.05. The anisotropic reflectance measurements, as obtained through a gonioreflectometry, were used to fit the bidirectional reflectance distribution function (BRDF) for the first time. The obtained BRDF parameters σt and σf had a range of 0.1–0.18 and 0.006–0.015, respectively, for different tapes. Employing the new BRDF parameters empowers a more accurate prediction and optimization of the process settings of laser-based composite manufacturing. Laser-assisted tape placement/winding (LATP/LATW), anisotropic reflection, unidirectional tape (UD), bidirectional reflection modelling.