Full Content is available to subscribers

Subscribe/Learn More  >

An Empirical Model for Predicting Crack Growth Behavior of Gas Turbine Stage 1 Nozzles

[+] Author Affiliations
Jenfu Yau, Hui Kuang

General Electric Power System, Greenville, SC

Paper No. GT2002-30302, pp. 691-697; 7 pages
  • ASME Turbo Expo 2002: Power for Land, Sea, and Air
  • Volume 4: Turbo Expo 2002, Parts A and B
  • Amsterdam, The Netherlands, June 3–6, 2002
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3609-6 | eISBN: 0-7918-3601-0
  • Copyright © 2002 by ASME


Expenditure of maintenance cost for gas turbines can be greatly reduced if the parts can be well managed during the service to avoid excessive fallout rate or unplanned forced outage. In order to achieve the optimum part life management plan, the ability to accurately predict the life capabilities and fallout rates of the life limiting components becomes very important. An empirical model for the stage 1 nozzle of F-class frame 9 GE gas turbine has been developed based on Weibull statistic analysis of measured crack dimensions at observed critical locations of the nozzle. The crack measurements were taken during the hot gas path inspections and data from several different machine units which had different operating histories were used to establish relationship between Weibull parameters and elapsed operation histories. The fallout rate as function operation history is predicted by performing a Monte Carlo analysis to account for the combined effects of multiple cracks.

Copyright © 2002 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In