ABSTRACT
The prevention of thermo-mechanical fatigue (TMF) cracking in turbine housings for gasoline application has been one of crucial issues in automotive industry from a perspective of structural integrity. In the present study, an approach to thermo-mechanical fatigue life prediction for austenitic cast steel that enables to accelerate design loops was developed. The present approach has two major features as follows: (i) elastic-analysis-based approach and (ii) fatigue design curve determined by isothermal fatigue data. This paper describes the details of the approach and its application to actual turbine housing.
