Abstract
AbstractFinite element analysis (FEA) and experiments have been conducted to analyze the calibration coefficient for measuring residual stress in the ring core method. In this publication, firstly, the calibration coefficients were determined using FEA. Then, factors which affect the calibration coefficients were investigated, such as the tensile load applied to the components, the geometric sizes of the annular grove and the location of the strain gage. The results of FEA were consistent with the experimental results. The most appropriate geometric sizes of the annular groove and location of the strain gage were obtained. This study also defines the distortion energy parameter S to calculate and modify the calibration coefficients. Hence, it is reasonable to apply FEA to calibration coefficients in the ring core method.
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