Abstract:In the present investigation, the effect of notch on creep rupture behavior and creep rupture life of a Ni-based superalloy has been assessed by performing creep tests on smooth and U-notched plate specimen under 0°C. The finite element analysis coupled with continuum damage mechanics are carried out to understand the stress distribution across the notch throat and the creep damage evolution under multi-axial stress state. The creep rupture life of U-notched specimen is much larger than that of plane plate spe… Show more
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