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A study of multi-segment fatigue crack growth data analysis procedure for probabilistic crack growth prediction
Published in
2011
Volume: 33
   
Issue: 12
Pages: 1557 - 1563
Abstract
Commonly used fatigue crack growth prediction models estimate life in a deterministic manner. Realizing that several variables influence fatigue crack growth, it is pertinent to assess crack growth using probabilistic models. In the present work, a probabilistic model is studied using continuous and segmented crack growth rate data models. It is observed that the prediction of life using Paris constants from continuous data model is accurate only in a finite region of the crack growth. The model based on segmented data provides more accurate life predictions with lesser variance with experimental data than the continuous data model. © 2011 Elsevier Ltd. All rights reserved.
About the journal
JournalInternational Journal of Fatigue
ISSN01421123
Open AccessNo
Concepts (18)
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    CONTINUOUS DATA
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    CRACK GROWTH MODEL
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    Experimental data
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    LIFE PREDICTIONS
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    Model-based opc
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    MULTI-SEGMENT
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    MULTI-SEGMENTED MODEL
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    PROBABILISTIC CRACK GROWTH
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    Probabilistic models
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    SEGMENTED DATA
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    Several variables
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    Data reduction
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    Fatigue crack propagation
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    Fatigue of materials
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    Forecasting
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    Mathematical models
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    Models
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    Cracks