Fatigue crack growth under remote and local compression – a state-of-the-art review

There is an ever increasing need for accurate understanding of the fatigue crack growth behaviour in major engineering materials and components. With the move towards more complex, probabilistic assessments, the traditional ‘safe’ or conservative approach for prediction of fatigue crack growth rat...

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Main Authors: A. Chahardehi, A. Mehmanparast
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2016-01-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_05.pdf
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author A. Chahardehi
A. Mehmanparast
author_facet A. Chahardehi
A. Mehmanparast
author_sort A. Chahardehi
collection DOAJ
description There is an ever increasing need for accurate understanding of the fatigue crack growth behaviour in major engineering materials and components. With the move towards more complex, probabilistic assessments, the traditional ‘safe’ or conservative approach for prediction of fatigue crack growth rate may no longer be attractive. Current codes and standards tend to be ambiguous about the treatment of compressive stress cycles: on the one hand code guidance on fatigue crack initiation may be non-conservative, while assessment of crack propagation may be inconsistently conservative. Where codes are non-conservative they could lead to dangerous assessments. The current paper provides a critical review of state-of-the-art in literature and a study of current code implications.
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series Fracture and Structural Integrity
spelling doaj-art-f85c97cbe5fc46338675b5b6351e6d762025-01-03T00:27:04ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932016-01-011035414910.3221/IGF-ESIS.35.05Fatigue crack growth under remote and local compression – a state-of-the-art reviewA. Chahardehi0A. Mehmanparast1Atkins Energy, Euston Tower,UKCranfield University, UKThere is an ever increasing need for accurate understanding of the fatigue crack growth behaviour in major engineering materials and components. With the move towards more complex, probabilistic assessments, the traditional ‘safe’ or conservative approach for prediction of fatigue crack growth rate may no longer be attractive. Current codes and standards tend to be ambiguous about the treatment of compressive stress cycles: on the one hand code guidance on fatigue crack initiation may be non-conservative, while assessment of crack propagation may be inconsistently conservative. Where codes are non-conservative they could lead to dangerous assessments. The current paper provides a critical review of state-of-the-art in literature and a study of current code implications.http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_05.pdfFatigue crack growthCompressive stressClosureR-ratioParis lawDesign codes
spellingShingle A. Chahardehi
A. Mehmanparast
Fatigue crack growth under remote and local compression – a state-of-the-art review
Fracture and Structural Integrity
Fatigue crack growth
Compressive stress
Closure
R-ratio
Paris law
Design codes
title Fatigue crack growth under remote and local compression – a state-of-the-art review
title_full Fatigue crack growth under remote and local compression – a state-of-the-art review
title_fullStr Fatigue crack growth under remote and local compression – a state-of-the-art review
title_full_unstemmed Fatigue crack growth under remote and local compression – a state-of-the-art review
title_short Fatigue crack growth under remote and local compression – a state-of-the-art review
title_sort fatigue crack growth under remote and local compression a state of the art review
topic Fatigue crack growth
Compressive stress
Closure
R-ratio
Paris law
Design codes
url http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_05.pdf
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AT amehmanparast fatiguecrackgrowthunderremoteandlocalcompressionastateoftheartreview