Application of Parallel Processing to Probabilistic Fracture Mechanics Analysis of Gas Turbine Disks

2004 ◽  
Author(s):  
Harry Millwater ◽  
Brian Shook ◽  
Shirdah Guduru ◽  
George Constantinides
Keyword(s):  
Parallel Processing ◽  
Fracture Mechanics ◽  
Gas Turbine ◽  
Probabilistic Fracture Mechanics ◽  
Mechanics Analysis ◽  
Turbine Disks

scholarly journals Recent verification activities on probabilistic fracture mechanics analysis code PASCAL4 for reactor pressure vessel

2020 ◽  
Vol 7 (3) ◽  
pp. 19-00573-19-00573
Author(s):  
Kai LU ◽  
Jinya KATSUYAMA ◽  
Yinsheng LI ◽  
Yuhei MIYAMOTO ◽  
Takatoshi HIROTA ◽  
...  
Keyword(s):  
Fracture Mechanics ◽  
Pressure Vessel ◽  
Reactor Pressure Vessel ◽  
Probabilistic Fracture Mechanics ◽  
Mechanics Analysis ◽  
Reactor Pressure

Gas Turbine Engine Disk Retirement-for-Cause: An Application of Fracture Mechanics and NDE

1980 ◽  
Author(s):  
C. G. Annis ◽  
M. C. VanWanderham ◽  
J. A. Harris ◽  
D. L. Sims
Keyword(s):  
Fracture Mechanics ◽  
Gas Turbine ◽  
Life Cycle Cost ◽  
Energy Savings ◽  
Cost Savings ◽  
Gas Turbine Engine ◽  
Turbine Engine ◽  
Turbine Disks ◽  
Full Life ◽  
Engine Components

Historically, gas turbine engine disks are retired when they accrue an analytically determined lifetime where the first fatigue crack per 1000 disks could be expected. By definition then, 99.9 percent of these components are being retired prematurely. Retirement-for-Cause (RFC) is a procedure, based on Fracture Mechanics, which would allow safe utilization of the full life capacities of each individual disk. Since gas turbine disks are among the most costly of engine components, adopting a RFC philosophy could result in substantial systems life cycle cost savings. These would accrue from reduced replacement costs, conservation of strategic materials such as cobalt, and energy savings.

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