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| Naji, M. |
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| Ertürk, Emre |
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| Petrov, R. H. | Madrid |
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Almeida, Olivier De
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Topics
Publications (20/20 displayed)
- 2022Determination of a degradation-induced limit for the consolidation of CF/PEEK composites using a thermo-kinetic viscosity modelcitations
- 2021Effect of PEEK degradation on commingled fabrics consolidation
- 2021Effect of melt spinning on the integrity of poly(ether ether ketone) for commingled yarn based composite preformscitations
- 2021Effect of poly(ether ether ketone) degradation on commingled fabrics consolidationcitations
- 2020Characterisation and modelling of the temperature and rate dependent shear behaviour of a non-consolidated powder impregnated fabric
- 2019Experimental characterization and modeling of the temperature and rate-dependent shear behaviour of powder-impregnated glass fiber/PA66 woven semipregscitations
- 2019Modelling strategy of IR lamps with integrated reflector used in the manufacturing processof thermoplastic composite tapes
- 2019Pixel Coloring modelling of PEKK crystallization
- 2019Modeling of IR lamps with coated reflector used in the slurry powder impregnation process of composite tapescitations
- 2018The role of microcrystalline structure on optical scattering characteristics of semi-crystalline thermoplastics and the accuracy of numerical input for IR-heating modelingcitations
- 2017Experimental study of polymerization and crystallization kinetics of polyamide 6 obtained by anionic ring opening polymerization of ε-caprolactamcitations
- 2017Towards a coupled heating-forming simulation of the thermoforming of thermoplastic compositescitations
- 2017Long term ageing of polyamide 6 and polyamide 6 reinforced with 30% of glass fibers: physicochemical, mechanical and morphological characterizationcitations
- 2017A non-invasive experimental approach for surface temperature measurements on semi-crystalline thermoplasticscitations
- 2016Assessment of induction heated mould technologies for high-temperature thermoplastic composite manufacturing
- 2016Experimental analysis on the coupled effect between thermo-optical properties and microstructure of semi-crystalline thermoplasticscitations
- 2016Coupled heating-forming simulation of the thermoforming of thermoplastic composites
- 2016Identification of the temperature dependent relation between thermo-optical properties and morphology of semi-crystalline thermoplastics for thermoforming process
- 2010Melt state behaviour of PEEK and processing window interpretation for fast compression moulding process
- 2010Heterogeneous tensile behavior of impact-modified polypropylene plates processed by injection moulding
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document
Characterisation and modelling of the temperature and rate dependent shear behaviour of a non-consolidated powder impregnated fabric
Abstract
The shear behavior of a non-consolidated powder impregnated PA66/glass woven semipreg is investigated through bias extension tests at different temperatures and testing speeds in the thermoforming processing range, and compared to the behavior of the same material after a preconsolidation step. Results show in both cases an increase of the shear modulus with lower temperatures, as expected from the thermodependance of the matrix viscosity. In contrast with the preconsolidated samples, the semipreg does not present a dependence on shear rate, which is attributed to different friction configurations between the yarns. A model based on multiplicative decoupling allows for a good prediction of the shear behavior of the semipreg material.