Inspection scheduling based on reliability updating of gas turbine welded structures

Inspection scheduling based on reliability updating of gas turbine welded structures

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This article presents a novel methodology for the inspection scheduling of flunazine injection gas turbine welded structures, based on reliability calculations and overhaul findings.The model was based on a probabilistic crack propagation analysis for welds in a plate and considered the uncertainty in material properties, defect inspection capabilities, weld geometry, and loads.It developed a specific stress intensity factor and an improved first-order reliability method.The proposed routine alleviated the computational cost of stochastic crack propagation analysis, with accuracy.It is useful to achieve an effective design herbstonne black-eyed susan for manufacturing, to develop structural health monitoring applications, and to adapt inspection schedules to airplane fleet experience.