Influence of the stacking sequence on the low-energy impact resistance of flax/PA11 composite
| Autor: | Michaël Chauvin, Yann Lebaupin, Thuy-Quynh Truong Hoang, Fabienne Touchard |
|---|---|
| Přispěvatelé: | Ecole Polytechnique Fédérale de Lausanne (EPFL), École Supérieure des Techniques Aéronautiques et de Construction Automobile (ESTACA), ENDOmmagement et durabilité ENDO (ENDO), Département Physique et Mécanique des Matériaux (Département Physique et Mécanique des Matériaux), Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
flax mechanical-properties Composite number Stacking 02 engineering and technology epoxy Low energy 0203 mechanical engineering absorbed energy impact behavior [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] Materials Chemistry Composite material Sequence (medicine) density behavior Mechanical Engineering process parameters polyamide 11 Epoxy Composite laminates 021001 nanoscience & nanotechnology damage mechanisms low-velocity impact Impact resistance 020303 mechanical engineering & transports plates Mechanics of Materials visual_art Polyamide Ceramics and Composites visual_art.visual_art_medium 0210 nano-technology damage |
| Zdroj: | Journal of Composite Materials Journal of Composite Materials, SAGE Publications, 2019, 53 (22), pp.3187-3198. ⟨10.1177/0021998319837339⟩ |
| ISSN: | 0021-9983 |
| DOI: | 10.1177/0021998319837339⟩ |
| Popis: | In this paper, the low-energy impact behavior of a fully biobased composite made of bio-sourced polyamide 11 resin reinforced with flax fibers was investigated. Different composite laminates were studied in order to determine the stacking sequence effects on the impact behavior of these composites. Four stacking sequences were manufactured: unidirectional [0°]8, cross-ply [0°/90°]2s, sandwich-like [02°/902°]s and quasi-isotropic [45°/0/−45°/90°]s. A low impact energy of 3.6 J was applied on these laminates by means of a drop weight impact tower. The impact properties of these lay-ups were ascertained by analysing the impact load history, the maximal displacement of the impactor and the absorbed energy. Damage after impact was further assessed by visual inspections, topographic measurements, C-scan and X-ray micro-tomography observations. The results show that impact damage of composite plates is highly influenced by fiber orientation. The impact test data are in good agreement with damage analysis after impact and indicate that stacking plies in the same orientation lead to a larger induced damage, which is responsible for energy dissipation. The quasi-isotropic composite has the smallest induced damage and the highest peak load. Otherwise, the sandwich-like sequence shows the lowest peak load, the highest energy absorption and significant induced damage. Therefore, it is necessary to choose the most suitable lay-up, in terms of impact behavior, for each considered industrial application. |
| Databáze: | OpenAIRE |
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