Reliability Prediction Considering the Stage of Subcritical Fatigue Cracks Growth
Authors
Igor Jakovlevich Berezin
South Ural State University
Vadim Borisovich Poroshin
South Ural State University
Keywords:
durability prediction, probabilistic approach, reliability function, fatigue failure, crack propagation analysis, Paris equation, stress intensity factor, crack-resistance limit, finite elements method, Monte Carlo method
Abstract
Fatigue failure is considered as a two-stage process that includes operating time up to the beginning of the surface damage and the stage of subcritical crack propagation. Taking into consideration of the second stage provides an opportunity to address a number of important practical problems, in particular: the definition of allowable defect size, the appointment of monitoring periods, evaluation of residual life, raising a reasoned normative terms of operation and more.
Author Biographies
Igor Jakovlevich Berezin, South Ural State University
Dr. Sc. (Engineering), Professor, Applied Mechanics, Dynamics and Strength of Machines Department
Vadim Borisovich Poroshin, South Ural State University
Cand. Sc. (Engineering), Associate Professor, Applied Mechanics, Dynamics and Strength of Machines Department
