Review of available probabilistic models of the crack growth parameters in the Paris equation

Peyman Amirafshari; Alexander Stacey

Review of available probabilistic models of the crack growth parameters in the Paris equation

Peyman Amirafshari, Alexander Stacey

Naval Architecture, Ocean And Marine Engineering

Research output: Contribution to conference › Paper › peer-review

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Abstract

Crack growth rate parameters of the Paris equation are crucial inputs in the engineering critical assessment (ECA) of structures containing flaws. In fracture mechanics based reliability analysis, probabilistic models of these parameters are often used. Despite the considerable body of research in this area, there is significant variability among available models. This paper reviews the current available models in the literature and addresses areas requiring further research with a view to assisting probabilistic flaw assessment. The effect of the existing variability in crack growth model parameters is investigated by fracture mechanics analysis of a case study crack.

Original language	English
Number of pages	7
Publication status	Published - 9 Jun 2019
Event	38th International Conference on Ocean, Offshore & Arctic Engineering - Scottish Event Campus, Glasgow, United Kingdom Duration: 9 Jun 2019 → 14 Jun 2019 Conference number: 2019 https://event.asme.org/OMAE

Conference

Conference	38th International Conference on Ocean, Offshore & Arctic Engineering
Abbreviated title	OMAE
Country/Territory	United Kingdom
City	Glasgow
Period	9/06/19 → 14/06/19
Internet address	https://event.asme.org/OMAE

Keywords

fracture mechanics
Paris Law
fatigue crack growth
fatigue damage parameter
fatigue
fatigue reliability
probabilistic fracture mechanics
welded joints
offshore structure fractures

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Amirafshari-Stacey-OMAE2019-Review-of-available-probabilistic-models-of-the-crack-growth-parameters-in-the-Paris-equationAccepted author manuscript, 840 KB

Cite this

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title = "Review of available probabilistic models of the crack growth parameters in the Paris equation",

abstract = "Crack growth rate parameters of the Paris equation are crucial inputs in the engineering critical assessment (ECA) of structures containing flaws. In fracture mechanics based reliability analysis, probabilistic models of these parameters are often used. Despite the considerable body of research in this area, there is significant variability among available models. This paper reviews the current available models in the literature and addresses areas requiring further research with a view to assisting probabilistic flaw assessment. The effect of the existing variability in crack growth model parameters is investigated by fracture mechanics analysis of a case study crack.",

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T1 - Review of available probabilistic models of the crack growth parameters in the Paris equation

AU - Amirafshari, Peyman

AU - Stacey, Alexander

N1 - Conference code: 2019

PY - 2019/6/9

Y1 - 2019/6/9

N2 - Crack growth rate parameters of the Paris equation are crucial inputs in the engineering critical assessment (ECA) of structures containing flaws. In fracture mechanics based reliability analysis, probabilistic models of these parameters are often used. Despite the considerable body of research in this area, there is significant variability among available models. This paper reviews the current available models in the literature and addresses areas requiring further research with a view to assisting probabilistic flaw assessment. The effect of the existing variability in crack growth model parameters is investigated by fracture mechanics analysis of a case study crack.

AB - Crack growth rate parameters of the Paris equation are crucial inputs in the engineering critical assessment (ECA) of structures containing flaws. In fracture mechanics based reliability analysis, probabilistic models of these parameters are often used. Despite the considerable body of research in this area, there is significant variability among available models. This paper reviews the current available models in the literature and addresses areas requiring further research with a view to assisting probabilistic flaw assessment. The effect of the existing variability in crack growth model parameters is investigated by fracture mechanics analysis of a case study crack.

KW - fracture mechanics

KW - Paris Law

KW - fatigue crack growth

KW - fatigue damage parameter

KW - fatigue

KW - fatigue reliability

KW - probabilistic fracture mechanics

KW - welded joints

KW - offshore structure fractures

M3 - Paper

T2 - 38th International Conference on Ocean, Offshore & Arctic Engineering

Y2 - 9 June 2019 through 14 June 2019

ER -

Review of available probabilistic models of the crack growth parameters in the Paris equation

Abstract

Conference

Keywords

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