Perpustakaan Digital ITB

An Amphibious aircraft is an aircraft that can land on both land and water with an objective to transport easier between remote areas, especially near water areas. This kind of aircraft is subjected to high levels of salt and moisture in the air, leading to corrosion problems. Because of that, the impact of the corrosive environment on the aircraft structure was studied. Designing the chamber is done to create an isolated environmental system that can simulate the effects of the salt environment. Results from literature studies show that corrosion decreases the fatigue strength and increases the crack growth rate on the specimen. Also, results from chamber prototype testing show that q humidifier can increase the humidity inside the chamber and can create a corrosive environment. Additionally, finite element method simulations were used to observe the mechanism of how damage initiates and propagates through grain boundaries. The model of the grain itself will be generated by using a voronoi diagram. The result shows that the intergranular crack can be modeled in the finite element method with different grain sizes and load can affect the result. These insights into microstructure are crucial for determining the material properties on the microscale.