Investigating the High Velocity Impact Behavior of the Laminated Composites of Aluminum/Jute Fibers- Epoxy Containing Na
- PDF / 2,842,442 Bytes
- 7 Pages / 609 x 794 pts Page_size
- 83 Downloads / 191 Views
ISSN 1229-9197 (print version) ISSN 1875-0052 (electronic version)
Investigating the High Velocity Impact Behavior of the Laminated Composites of Aluminum/Jute Fibers- Epoxy Containing Nanoclay Particles Hossein Ebrahimnezhad-Khaljiri1*, Reza Eslami-Farsani1, and Saeid Talebi2 1
Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran 19919-43344, Iran Department of Mechanical Engineering, South Tehran Branch, Islamic Azad University, Tehran 1584743311, Iran (Received November 8, 2019; Revised January 17, 2020; Accepted March 1, 2020)
2
Abstract: In this research work, the effect of adding nanoclay on the high velocity impact behavior of fibers metal laminates (FMLs) of aluminum- Jute fibers/epoxy was investigated. To do so, the nanoclay particles with different percentages (0, 1, 3 and 5 wt.%) were firstly added into the epoxy matrix. In the following, the FMLs with the configuration of 0/90/0/90/0 were made by hand lay-up method. After that, the fabricated samples were tested by high velocity impact test. In order to investigate the effect of nanoparticles on the impact properties, the field emission scanning electron microscope (FESEM) was used. The obtained results showed that the samples with 0, 1, 3 and 5 wt.% had the limit velocity of 81.9, 83.7, 87.4 and 85.4 m/s, respectively. The limit velocity increment in these samples by adding nanoclay were 2.2, 6.7 and 4.3 %, respectively. Also, the obtained results showed that by adding the 1, 3 and 5 wt.% nanoclay, the absorbed energy was improved about 4.5, 14 and 8.8 %, respectively. The sample with 3 wt.% nanoclay had minimum delamination length between aluminum shell and composite core, which was due to the effect of nanoclay in the interface adhesion of core-shell. The microscopically analysis showed that the nanoclay increased the fibrillation of Jute fibers as one of the absorbed energy mechanisms in the Jute fibers. Also, the agglomeration phenomenon in the sample with the 5 wt.% nanoclay was illustrated, which was the decreasing factor of its impact properties, as comparison with sample with 3 wt.% nanoclay. Keywords: Fibers metal laminate, Nanoclay, Jute fibers, High velocity impact
locks. The optimum percentage of CNTs was reported 2.5 wt.% by these researchers. In the study of Bahari et al. [12], the effect of adding modified nanoclay particles on the impact and flexural properties of FMLs were investigated. In this research, the 2024 aluminum as skin and basalt fibers- epoxy composite containing nanoclay as core of FMLs were used. They reported that adding the 3 wt.% modified nanoclay was improved the fracture energy and flexural strength of FMLs. Pol et al. [13] surveyed the high velocity impact behavior of FMLs containing glass fibers and nanoclay particles. The obtained results showed that the FMLs containing the 3 and 10 wt.% nanoclay could absorb the energy of impactor with the rate of 134 and 169 m/s, respectively. Haro et al. [14] investigated the effect of adding micro and nano fillers of aluminum, silicon
Data Loading...
