Method and system of deterministic fatigue life prediction for rotor materials
US9541530B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Jan 17, 2013 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Oct 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of fatigue life prediction including: calculating a critical crack size of an object of interest; identifying a first flaw in ultrasound data of the object of interest; determining that the first flaw interacts with a second flaw, the first flaw is to be merged with the second flaw, or the first flaw is isolated; calculating an initial crack size based on the determination; and calculating an increase in the initial crack size due to fatigue and creep to determine a number of load cycles until the initial crack size reaches the critical crack size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.