Approximate weight functions of stress intensity factor for a wide range shapes of surface and an embedded elliptical crack

Yoshifumi Takaki, Koji Gotoh

Research output: Contribution to journalArticle

Abstract

This paper describes the application of weight function for stress intensity factor in a surface crack with a wide range of crack shapes. Based on the weight function representation proposed by Wang and Glinka (2009), an extended formulation of the weight function for surfaces and embedded cracks is performed. The unknown parameters in the formulations were determined from reference values of stress intensity factor for a surface and an embedded crack given by finite element analysis with the J integral method. The effectiveness of the proposed weight functions has been verified by comparing with the stress intensity factors given by finite element analysis and available approximated solutions under several loading conditions.

Original languageEnglish
Article number102696
JournalMarine Structures
Volume70
DOIs
Publication statusPublished - Mar 2020

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Stress intensity factors
Cracks
Finite element method

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Ocean Engineering
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Approximate weight functions of stress intensity factor for a wide range shapes of surface and an embedded elliptical crack. / Takaki, Yoshifumi; Gotoh, Koji.

In: Marine Structures, Vol. 70, 102696, 03.2020.

Research output: Contribution to journalArticle

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