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

Peyman Amirafshari, Alexander Stacey

Research output: Contribution to conferencePaper

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.

Conference

ConferenceASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019
CountryUnited Kingdom
CityGlasgow
Period9/06/1914/06/19

Fingerprint

Crack propagation
Fracture mechanics
Defects
Reliability analysis
Cracks
Statistical Models

Keywords

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

Cite this

Amirafshari, P., & Stacey, A. (2019). Review of available probabilistic models of the crack growth parameters in the Paris equation. Paper presented at ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019, Glasgow, United Kingdom.
Amirafshari, Peyman ; Stacey, Alexander. / Review of available probabilistic models of the crack growth parameters in the Paris equation. Paper presented at ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019, Glasgow, United Kingdom.7 p.
@conference{6fb6abf448bc4300acab41c6f26d237f,
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.",
keywords = "fracture mechanics, Paris Law, fatigue crack growth, fatigue damage parameter, fatigue, fatigue reliability, probabilistic fracture mechanics, welded joints, offshore structure fractures",
author = "Peyman Amirafshari and Alexander Stacey",
year = "2019",
month = "6",
day = "9",
language = "English",
note = "ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019 ; Conference date: 09-06-2019 Through 14-06-2019",

}

Amirafshari, P & Stacey, A 2019, 'Review of available probabilistic models of the crack growth parameters in the Paris equation' Paper presented at ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019, Glasgow, United Kingdom, 9/06/19 - 14/06/19, .

Review of available probabilistic models of the crack growth parameters in the Paris equation. / Amirafshari, Peyman; Stacey, Alexander.

2019. Paper presented at ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019, Glasgow, United Kingdom.

Research output: Contribution to conferencePaper

TY - CONF

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

AU - Amirafshari, Peyman

AU - Stacey, Alexander

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

ER -

Amirafshari P, Stacey A. Review of available probabilistic models of the crack growth parameters in the Paris equation. 2019. Paper presented at ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019, Glasgow, United Kingdom.