Effect of Pitting Corrosion on Safety Coefficient and Stress Concentration of Airplane Floor Beam

The change rule of residual static strength safety coefficient when the pitting sizes on the floor beam were different was studied. The finite element model of floor beam was established based on ABAQUS. The model was used to analyze the change rule of stress concentration coefficient and the effect of pitting location on residual static strength safety coefficient when the pitting sizes were different in order to provide theoretical foundation for floor beam corrosion damage repair.