The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2014
Filed:
Sep. 18, 2010
James B. Castle, Saint Charles, MO (US);
Sebastian Nervi, Buenos Aires, AR;
Randolph B. Hancock, Wildwood, MO (US);
Jared Bolin, Millstadt, IL (US);
James B. Castle, Saint Charles, MO (US);
Sebastian Nervi, Buenos Aires, AR;
Randolph B. Hancock, Wildwood, MO (US);
Jared Bolin, Millstadt, IL (US);
The Boeing Company, Chicago, IL (US);
Abstract
A method of predicting distortion in a workpiece may include measuring residual stress induced in a coupon surface of a plate coupon by a selected manufacturing operation. The induced residual stress measurements may be fitted to a curve shape function. A moment coefficient may be calculated based upon the fitted induced residual stress measurements. The moment coefficient may be used to calibrate a stress function and corresponding stress magnitude. The calibrated stress function may be applied to a model of the workpiece such that the distortion of the workpiece may be predicted.