A New Stochastic Model for Prediction of Fatigue Crack Propagation

Khalil Farhangdoost; E. Pooladi B.

doi:10.4028/www.scientific.net/KEM.297-300.1764

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Adhesion Analysis Considering Surface Energy and Surface Stresses
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An Evaluation of Appropriate Probabilistic S-N Curve for the Turbine Blade Steel in the Low Pressure Steam
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Z-Parameter Method for Life Prediction in Low Carbon Steels
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Automotive Component Fatigue Life Estimation by Frequency Domain Approach
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Study on Reliability Assessment Procedures for Torsion Spring of Vehicle Door Latch
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 297-300A New Stochastic Model for Prediction of Fatigue...

A New Stochastic Model for Prediction of Fatigue Crack Propagation

Abstract:

Fatigue damage plays a significant role in fatigue life of structures and mechanical parts. Characterizing crack length as a random process in fatigue life, is a matter of controversy which is the first step of this new stochastic model for prediction of fatigue crack propagation. Minimum uncertainties and capability of using closure load are the model advantages. Generating series of a nonstationary process, effects of load history in immediate last step of crack propagation using Total Probability Theory (TPT) are some assumptions of this model. The model results have been compared with actual test results of Ti-6Al-4V CT specimens.

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Periodical:

Key Engineering Materials (Volumes 297-300)

Pages:

1764-1769

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.297-300.1764

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Online since:

November 2005

Authors:

Khalil Farhangdoost, E. Pooladi B.

Keywords:

Crack Propagation, Damage Tolerance, Fatigue, Stochastic Modeling

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References

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DOI: 10.1016/s0142-1123(01)00045-7

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