The development of advanced materials often requires improvements in the methods used for design, life prediction and testing. The problem of separating successive stages in fatigue rupture is briefly analyzed. The ONERA multistage prediction model has given valid results for superalloys and steels subject to complex loads, although it has only been tested on a limited number of materials. In this work, the model was applied to IN 738 under high-temperature fatigue conditions. Results showed good agreement between experimental and predicted values.
Life prediction methods for superalloys / F.Pratesi; G.Zonfrillo; A.Del Puglia. - STAMPA. - (1989), pp. 371-376. (Intervento presentato al convegno Int. Conf. on "Evolution of Advanced Materials" tenutosi a Milano nel 31 maggio-2 giugno 1989).
Life prediction methods for superalloys
PRATESI, FRANCO;ZONFRILLO, GIOVANNI;DEL PUGLIA, ALDO
1989
Abstract
The development of advanced materials often requires improvements in the methods used for design, life prediction and testing. The problem of separating successive stages in fatigue rupture is briefly analyzed. The ONERA multistage prediction model has given valid results for superalloys and steels subject to complex loads, although it has only been tested on a limited number of materials. In this work, the model was applied to IN 738 under high-temperature fatigue conditions. Results showed good agreement between experimental and predicted values.
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