Abstract
Experimental investigations on the fatigue behavior of thick center cracked aluminum plates (10mm) bonded with two-sided composite patches were conducted. Fatigue tests indicated that fatigue life of two-sided repaired specimens is 31 times greater than that of unrepaired specimens. The stress intensity factors (SIF) were calculated by using three-dimensional finite element method (FEM), which provide foundations to the prediction of fatigue life of two-sided repaired specimens based on Paris' law. Predictions are in good agreement with the experimental results.
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