Abstract
This study focuses on the characterization of the in-plane shear response of a novel powder-impregnated, non-consolidated PA66/glass semipreg to evaluate its forming behaviour. The effects of temperature and rate on the behaviour of the semipreg and the preconsolidated material were investigated using bias-extension tests. Results obtained show an increase in shear stress with decreasing temperature and increasing rate, with the semipreg exhibiting a lower sensitivity to the test speed. An increase of the flow distance to impregnate the yarns, due to intra-ply sliding mechanisms specific to the powder-impregnated semipreg, is observed. A model based on a hypoelastic approach with temperature and rate dependence is proposed to represent the material behaviour. Isothermal simulations of the bias-extension test are conducted. Results show a good agreement between the model and experimental data in terms of force and shear angle prediction.
Original language | English |
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Pages (from-to) | 22-32 |
Journal | Composites Science and Technology |
Volume | 180 |
Early online date | 15 May 2019 |
DOIs | |
Publication status | Published - 18 Aug 2019 |
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Dive into the research topics of 'Experimental characterization and modeling of the temperature and rate-dependent shear behaviour of powder-impregnated glass fiber/PA66 woven semipregs'. Together they form a unique fingerprint.Student theses
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Modelling the influence of infrared preheating and temperature uniformity in forming of powder-impregnated thermoplastic composites
Baumard, T. (Author), Schmidt, F. (Supervisor) & Menary, G. (Supervisor), Dec 2019Student thesis: Doctoral Thesis › Doctor of Philosophy
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