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https://hdl.handle.net/10316/105792
Title: | The High-Velocity Impact Behaviour of Kevlar Composite Laminates Filled with Cork Powder | Authors: | Amaro, Ana Martins Reis, Paulo Nobre Balbis Ivañez, Ines Sánchez-Saez, Sonia Garcia-Castillo, Shirley Kalamis Barbero, Enrique |
Keywords: | Kevlar composite laminates; ballistic impact; cork powder; mechanical testing | Issue Date: | 2020 | Publisher: | MDPI | Project: | Ministerio de Economía y Competitividad de España - project DPI2017-86324-R UIDB/00285/2020 |
Serial title, monograph or event: | Applied Sciences (Switzerland) | Volume: | 10 | Issue: | 17 | Abstract: | The literature reports benefits when the cork powder obtained from industrial by-products is used as the filler of composite laminates. For example, while the fatigue life is insensitive to the presence of cork in the resin, significant improvements are achieved in terms of to low-velocity impact strength. However, in terms of ballistic domain, the literature does not yet report any study about the e ect of incorporating powdered cork into resins. Therefore, this study intended to analyse the ballistic behaviour and damage tolerance of Kevlar/epoxy reinforced composites with matrix filled by cork powder. For this purpose, high-velocity impacts were studied on plates of Kevlar bi-directional woven laminates with surfaces of 100 100 mm2. It was possible to conclude that the minimum velocity of perforation is 1.6% higher when the cork powder is added to the resin, but considering the dispersion, this small di erence can be neglected. In terms of damage areas, they are slightly lower when cork dust is added, especially for velocities below the minimum perforation velocity. Finally, the residual bending strength shows that these composites are less sensitive to impact velocity than the samples with neat resin. In addition to these benefits, cork powder reduces the amount of resin in the composite, making it more environmentally friendly. | URI: | https://hdl.handle.net/10316/105792 | ISSN: | 2076-3417 | DOI: | 10.3390/app10176108 | Rights: | openAccess |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais |
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The-highvelocity-impact-behaviour-of-kevlar-composite-laminates-filled-with-cork-powderApplied-Sciences-Switzerland.pdf | 2.59 MB | Adobe PDF | View/Open |
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