This project aims to study the behavior of structural joint damage aluminum and fiberglass cylinder under axial impact. The fiber-reinforced composite material wrapped. The study was conducted by means of experiments using a piece of aluminum pipe joint structure. A ratio of diameter to thickness (D / t ratio) of 21.16, 25.40, 31.75, and 37.04 outer surface of the tube, aluminum is coated with a composite fiber-reinforced fiberglass / poly-ester. The study will change the layout of the fibers to form a 15 [0], [90], [45], [02], [902], [0/90], [90/0]. [+ 45 / -45], [03], [903], [0/902], [90/02], [902/0], [02/90], [+ 45 / -452], then. bring specimens to test the impact of the vertical axis with Breakers weighs 30 kg and has speed bumps 7 m / s
from the study showed that the pipe structure together and tubes, aluminum is likely to receive. the impact that increases in diameter to thickness ratio (D / t), and the layout of the fibers that form [0/902] can have the highest impact. Which is higher than that of aluminum pipe 56.11, 51.21, 36.62, and 49.45% at D / t equals 21.16, 25.40, 31.75, and 37.04, respectively, in terms of energy absorption that model [902/0] can. energy absorption is highest above the pipe, aluminum is up to 11.54, 21.94, 30.67, and 10.42% at D / t equals 21.16, 25.40, 31.75, and 37.04, respectively, and the energy-absorbing specifications found in. aluminum can absorb energy as high as possible. It also found that the characteristics and behavior of the damaged pipe joint structure is Lamina bucking mode, Fiber breaking, Local bucking, and Laminar bending.
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