Designing for Turbine Housing Weight Reduction Using Thermal Fatigue Crack Propagation Prediction Technology

2019 ◽  
Author(s):  
Toshikazu San'o ◽  
Mitsumasa Sorazawa ◽  
Shoji Takahashi
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Thermal Fatigue ◽  
Weight Reduction ◽  
Thermal Fatigue Crack ◽  
Turbine Housing ◽  
Propagation Prediction

Thermal Fatigue Crack Propagation in Large Scale Yielding (LSY) Conditions: Pacific Experiment on a 316L Quasi-Structure

2017 ◽  
Author(s):  
Gaëlle Leopold ◽  
François Curtit ◽  
Stéphan Courtin
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Thermal Fatigue ◽  
Large Scale ◽  
Strain Gauges ◽  
Thermal Fatigue Crack ◽  
Scale Yielding ◽  
Crack Growth Rates ◽  
Initial Cracks

An experimental device was built to study fatigue crack propagation in Large Scale Yielding (LSY) conditions. This paper deals with results obtained for the first experiment performed on a 316L quasi-structure containing four initial cracks. Crack lengths are measured and thermocouples and strain gauges enabled to follow the test. A comparison of this experiment was then carried out with an operating transient and measured crack growth rates were compared to the RSE-M PWR codified laws [1].

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