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:
Jun. 17, 2008
Filed:
May. 20, 2006
Robert E. Delaneuville, North Palm Beach, FL (US);
Robert E. deLaneuville, North Palm Beach, FL (US);
Florida Turbine Technologies, Inc., Jupiter, FL (US);
Abstract
A process for determining a remaining life of a part, such as an airfoil in a gas turbine engine, comprising the steps of establishing the boundary conditions that act on the part, determining the material properties of the part, creating a 3D finite element model of the part and determining the residual stresses on the part, observing the actual part for cracks, and comparing the location of the crack to the residual stresses determined on the model at the crack location. If the residual stress at the crack location passes into the wall of the part beyond a predetermined length, then the part is rejected for further use.