Akademik Veri Yönetim Sistemi
Avrupa Bilim ve Teknoloji Dergisi, cilt.28, ss.84-90, 2021 (Hakemli Dergi)
In this study, the production of polymer matrix composite material from prepreg with a hot press, which is a different method from the
classical autoclave method, was optimized. The impact behavior of the composite materials produced was investigated. For this, 3mm
thick and 90mm diameter aramid reinforced polymer matrix composite samples were produced by hot press method. Impact tests were
carried out at 15, 30, 45J energy values. For the impact tests, a 10 mm radius semi-cylindrical steel tip was used. The weight of this tip
is 5,045 kg. With the impact tests, the contact force time and energy time curves of the composite samples were obtained and the impact
behaviors were interpreted from there. Accordingly, as the impact energy increased, there was an increase in the maximum contact
forces of the composite samples and a decrease in the contact times. Considering the energy time graphs, it was determined that there
was a decrease in the amount of absorbed energy of the samples as the impact velocity applied to the composite samples increased.
Besides, considering the ratio of absorbed energy to applied energy, it was observed that the energy absorption ability dramatically
decreased as the impact velocity increased. Finally, the densities of the composite samples produced with the hot press were determined
according to the Archimedes principle.
Keywords: Aramid reinforced polymer matrix composite, Density, Low velocity impact, Hot-Press, Prepreg.