System and method for predicting distortion of a workpiece resulting from a peening machine process

摘要

A method(600) for predicting distortion and residual stress (28) in a workpiece (12) resulting from a peening process (10) may include the steps of providing a coupon (20) including residual stress (28) induced in a coupon surface (22) by the peening process (10), calculating a moment coefficient representative of residual stress (28) induced in the coupon surface (22), calibrating a stress function (34) to the moment coefficient, applying the stress function (34) to a workpiece model (38) of the workpiece (12), and computing at least one of predicted distortion and residual stress (28) of the workpiece (12) resulting from application of the calibrated stress function (56) to the workpiece model (38).