Thermal fatigue analysis on cracked plenum barrier plate of open-cycle gas turbine frame

• Main Authors: Rashid A.Z., Purbolaksono J., Ahmad A., Ahmad S.A.
• Other Authors: 26326524600
• Format: Article
• Published: 2023
• Subjects: Cracking; Failure analysis; Finite element; Gas turbine; Thermal fatigue; Cold storage; Compressed air; Cracks; Gas turbines; Microscopic examination; Mining; Quality assurance; Safety factor; Turbomachinery; Visual communication; Welds; Crack initiation; Surface defects; Failure investigation; Finite Element; Flowthrough; Life expectancies; Modified model; Original model; Plate design; Shaft bearing; Temperature sensitive; Visual inspection; Weld joints; Fatigue analysis; Open cycle gas turbines; Surface cracks; Finite element method

Failure investigation is carried out following repeating findings of several obvious surface-crack spots on the weld joint zone of a plenum barrier plate of open-cycle gas turbine frame. The exhausted hot compressed air will flow through the cracks entering the load compartment which contains temper...