Notice of Retraction Effect of accelerated ageing on the mechanical properties of composite repaired aluminum plates

Center-cracked aluminum plates were repaired with single-sided composite patches. The effects of accelerated ageing test on the static and fatigue properties of the specimens were studied. The results show that its mechanical properties are slightly affected by the accelerated one-cycle ageing test. The static bearing capability of the aged specimen is lowered by 2.5%. The fatigue lives of the repaired and aged specimens increased by 8.2 and 8.8 times, respectively, as compared with that of the unrepaired ones.