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Exploring damage kinetics in short glass fibre reinforced thermoplastics

Abstract : In situ SEM tensile tests are performed to shed more light on the onset and damage evolution in the shell layer of a short glass fibre reinforced polyamide 6.6 (SGFRP) composite obtained by injection moulding. Damage mechanisms are studied in three different loading directions including 0 degrees, 45 degrees and 90 degrees with respect to the mould flow direction (MFD). The development of damage is monitored until total failure at different scales of observation. Qualitative results indicate that the orientation of tensile specimens with respect to the mould direction determines to a large extent the nature of involved damage mechanisms. Interfacial damage is by far the leading damage mechanism. Quantitative investigation further indicates multi-stage damage kinetics, which demonstrates an asymmetric behaviour with respect to sample orientation. One to two main directions of damage growth are identified as responsible for the failure properties of the studied composite depending on sample orientation.
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Contributor : Habibou Maitournam Connect in order to contact the contributor
Submitted on : Saturday, October 14, 2017 - 11:23:33 AM
Last modification on : Monday, November 7, 2022 - 2:57:28 PM


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Hedi Nouri, Sofiane Guessasma, Frédéric Roger, Abderrahmane Ayadi, Habibou Maitournam. Exploring damage kinetics in short glass fibre reinforced thermoplastics. Composite Structures, 2017, 180, pp.63 - 74. ⟨10.1016/j.compstruct.2017.07.096⟩. ⟨hal-01616757⟩



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