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.
Original languageEnglish
Number of pages7
Publication statusPublished - 9 Jun 2019
Event38th International Conference on Ocean, Offshore & Arctic Engineering - Scottish Event Campus, Glasgow, United Kingdom
Duration: 9 Jun 201914 Jun 2019
Conference number: 2019
https://event.asme.org/OMAE

Conference

Conference38th International Conference on Ocean, Offshore & Arctic Engineering
Abbreviated titleOMAE
CountryUnited Kingdom
CityGlasgow
Period9/06/1914/06/19
Internet address

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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 38th International Conference on Ocean, Offshore & Arctic Engineering, Glasgow, United Kingdom.