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In this paper, the life prediction method of corroded aircraft aluminum alloy structure was proposed. The stress multiplication of aluminum alloy structure subjected to pitting corrosion damage was simulated by ANSYS software. Based upon the simulation results, the AFGROW software was used to carry out the crack growth analyses, the life cycles of corroded structure were estimated, and a very good...
In this paper, the corrosion damage of the aluminum alloy specimens were studied at different temperature for various corrosion times. The surface corrosion damage ratio of aluminum alloy structure was defined to reveal the degree of pit corrosion intensity. Based on the probability model of pitting corrosion growth, a new probability model capable of simulating the surface corrosion damage is developed...
The corrosion experiments were run on the aluminum alloy specimens at temperatures of 20degC, 40degC, 60degC and then fatigue tested. The surface corrosion damage configuration at the different temperature was investigated and the effect of corrosion temperature on fatigue lives was studied too. Based on the measured values of the corrosion damage, the mathematical model of corrosion damage at different...
In this paper, the corrosion fatigue crack propagation behavior of aluminum alloy specimens in corrosive solution has been investigated. Based upon the experimental results of corrosion fatigue growth, we proposed the stochastic processes method and the AFGROW software simulation method to predicate the numerical simulation of corrosion fatigue crack growth. The predicted crack growth curves agree...
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