Parametric Study on Scarf Patch Repairs for Shipboard Composite Structures.

As the cut-out depth increases, the peak stress shows an increasing trend: when the cut-out depth is 2 mm, the maximum equivalent stress of the entire structure is 13.0 MPa; when the cut-out depth increases to 3 mm, the peak stress slightly increases to 14.8 MPa, an increase of about 14%; further increasing the cut-out depth to 4 mm results in a significant increase in the peak stress to 27.1 MPa, which is approximately 83% higher than at the 3 mm depth.

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