WIT Press


Reevaluation Of The SRM Lifetime Prediction Rule By Coupling It With A Suitable Constitutive Model

Price

Free (open access)

Paper DOI

10.2495/LD940701

Volume

6

Pages

13

Published

1994

Size

1,256 kb

Author(s)

D. Rubesa & R. Danzer

Abstract

By coupling the SRM rule (Strain Rate Modified accumulation of creep damage) to predict the lifetime in the range of fatigue-creep interaction with a reliable constitutive model, its extrapolation ability can be fully recognized and the number of necessary experiments considerably further reduced. The SRM rule has been coupled with uniaxial Chaboche's vis- coplastic constitutive model. The efficiency and reliability of the couple are presented on the example of IN 738 LC super alloy at 850° C. 1 Introduction A number of comprehensive research projects were recently conducted worldwide to establish a recomm

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