“…rivet hole diameter is 3.25mm with a stress of 66.889MPa and a strain of 0.033115mm. This result is similar to the results of finite element analysis and is more optimal than the results in the study [8] with a stress of 271.97MPa [9] with a stress of 167.91MPa. From the results of Table 8, it is shown that the error of the Taguchi method is much larger than that of the GRA method.…”