Low Cycle Fatigue Life Model for Gas Turbine Engine Disks
1980 ◽
Vol 102
(1)
◽
pp. 45-49
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A low cycle fatigue (LCF) life exhaustion method is developed for gas turbine engine disks subjected to complex mission history loading. The method is incorporated into an algorithm for LCF life exhaustion prediction as a function of component, material, mission history, and mission ordering. Principal features in the LCF life model include a simple strain range-mean stress correlation model, a predictive model for the effects of strain-hardened surface layers due to machining and the effects of dwell (creep) due to elevated temperature exposure time, a fracture mechanics-based nonlinear, cumulative damage model, and full-scale component verification.
1980 ◽
Vol 102
(2)
◽
pp. 199-199
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2018 ◽
Vol 17
(2)
◽
pp. 37
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2021 ◽
Vol 1891
(1)
◽
pp. 012032
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1979 ◽
Vol 101
(4)
◽
pp. 563-571
◽
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