Tensile behavior of hybrid laminates repaired by full depth scarfing

Experimental study on tensile behavior of hybrid plain woven fabric laminate repaired by scarfing method was conducted. The results show under the same initial damage dimension, the specimen with scarf ratio of 1∶30 has the highest tensile strength which can reach 97.8% of the intact laminate strength and the failure mode changes upon the scarf ratio. Besides, when the scarf ratio is fixed, extending the dimension of initial damage can decrease the tensile strength of specimen. Based on test results, a finite element model is adopted to research tensile strength and progressive damage process of repaired specimen. The calculated strength and failure mode are in good agreement with test results.