DMZ fracture boundary limit

摘要

A method of establishing a boundary for a material improvement process on a workpiece is disclosed. The method may include identifying a maximum allowable damage depth on the workpiece; identifying a maximum constant thickness line on the workpiece at an extent of the maximum allowable damage depth; identifying a peak vibratory stress gradient on the workpiece; identifying a peak combined engine stress on the workpiece; and specifying the boundary for the material improvement process on the workpiece relative to the maximum constant thickness line, peak vibratory stress gradient, and peak combined engine stress.

主权项

1. A method of performing a material improvement process on a workpiece, comprising:
identifying a maximum allowable damage depth on the workpiece; identifying a maximum constant thickness line on the workpiece at an extent of the maximum allowable damage depth, the maximum constant thickness line extending from a base of the workpiece to a tip of the workpiece opposite the base; identifying a peak vibratory stress gradient on the workpiece; identifying a peak combined engine stress on the workpiece; specifying the boundary for the material improvement process on the workpiece relative to the maximum constant thickness line, peak vibratory stress gradient, and peak combined engine stress; and performing a material process on the workpiece in a portion of the workpiece defined by the boundary.