Abstract:
The models of thermomechanical fatigue life
prediction used for superalloys can be classified into
five types: general damage models, damage-rate
models, thermomechanical fatigue/strain-range
partitioning methods, modified J-integral models, and
empirical models. The formulation, which simulates
the damage mechanisms and predicts the
thermomechanical fatigue lives in various models, has
been specified. However, in-depth understanding and
theoretical modeling of thermomechanical fatigue
damage mechanisms and interactions are still
lacking[1]. Based on the evaluated intensity of the
stress, it can be concluded which is the preferred
variant the design stage, or deduction of the same
sizes, in case of technological deviations (cutting
errors, so as to result the same inner or outer surface,
as in case of the same median surface). Article content
refers in this configuration the setting mode related of
connection loads that will be taken into account in
tensions [5].