Aircrafts, bridges, wind turbines and other civil structures made of composite materials are frequently subjected to vibrations, which are responsible for a considerable number of accidents. One of the methods to reduce the vibrations is the incorporation of nanofibers in the composite structures. The main purpose of this study is to investigate the effect of the inclusion of polycaprolactone nanofibers on the vibratory behaviour of composite laminates. For this purpose, the vibratory behaviour of nano composites (with nanofibers) and standard composites (without nanofibers) is investigated with the purpose of acquiring their natural frequencies and the damping ratio. The results indicated that the inclusion of polycaprolactone nanofibers in composites increased the damping ratio, however it did not change significantly the natural frequencies. Furthermore, the paper investigates the effect of polycaprolactone nanofibers on the damage resistance of glass fibre composites. For this purpose, a finite element model is used to simulate the damage caused by mechanical impact in standard and nano composites. The numerical simulations show that the interleaving with nanofibers increased the damage resistance considerably. This study contributes to the knowledge about the vibration behaviour and the damage resistance of composites interleaved with polycaprolactone nanofibers. It is demonstrated that the interleaving with polycaprolactone fibres can play an important role for reducing the vibrations and increasing their impact damage resistance in composite structures as aircrafts.

Effect of polycaprolactone nanofibers on the vibratory behaviour and the damage resistance of composite laminates / Garcia, Cristobal*; Trendafilova, Irina; Zucchelli, Andrea. - In: MATEC WEB OF CONFERENCES. - ISSN 2261-236X. - ELETTRONICO. - 211:(2018), pp. 19003.1-19003.6. (Intervento presentato al convegno 14th International Conference on Vibration Engineering and Technology of Machinery, VETOMAC 2018 tenutosi a Lisbona nel Septermber.10-13, 2018) [10.1051/matecconf/201821119003].

Effect of polycaprolactone nanofibers on the vibratory behaviour and the damage resistance of composite laminates

Zucchelli, Andrea
2018

Abstract

Aircrafts, bridges, wind turbines and other civil structures made of composite materials are frequently subjected to vibrations, which are responsible for a considerable number of accidents. One of the methods to reduce the vibrations is the incorporation of nanofibers in the composite structures. The main purpose of this study is to investigate the effect of the inclusion of polycaprolactone nanofibers on the vibratory behaviour of composite laminates. For this purpose, the vibratory behaviour of nano composites (with nanofibers) and standard composites (without nanofibers) is investigated with the purpose of acquiring their natural frequencies and the damping ratio. The results indicated that the inclusion of polycaprolactone nanofibers in composites increased the damping ratio, however it did not change significantly the natural frequencies. Furthermore, the paper investigates the effect of polycaprolactone nanofibers on the damage resistance of glass fibre composites. For this purpose, a finite element model is used to simulate the damage caused by mechanical impact in standard and nano composites. The numerical simulations show that the interleaving with nanofibers increased the damage resistance considerably. This study contributes to the knowledge about the vibration behaviour and the damage resistance of composites interleaved with polycaprolactone nanofibers. It is demonstrated that the interleaving with polycaprolactone fibres can play an important role for reducing the vibrations and increasing their impact damage resistance in composite structures as aircrafts.
2018
MATEC Web of Conferences
1
6
Effect of polycaprolactone nanofibers on the vibratory behaviour and the damage resistance of composite laminates / Garcia, Cristobal*; Trendafilova, Irina; Zucchelli, Andrea. - In: MATEC WEB OF CONFERENCES. - ISSN 2261-236X. - ELETTRONICO. - 211:(2018), pp. 19003.1-19003.6. (Intervento presentato al convegno 14th International Conference on Vibration Engineering and Technology of Machinery, VETOMAC 2018 tenutosi a Lisbona nel Septermber.10-13, 2018) [10.1051/matecconf/201821119003].
Garcia, Cristobal*; Trendafilova, Irina; Zucchelli, Andrea
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/653524
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