Effect of plate width-thickness ratio on elastic-plastic J-integral of semi-elliptical surface cracked plate under tension: 1. Limitation of existing J-integral estimation equation

Ji Su Shin, Jae Min Gim, Yun Jae Kim

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, the elastic-plastic J of a tension-loaded plate with a semi-elliptical surface crack was calculated using finite element (FE) analysis. The results were then compared with those obtained using the existing J-integral estimation equation. To analyze the effect of the plate width-to-thickness ratio on J, a wide range of plate width-to-thickness ratio were considered. It was found that the existing estimation equation can predict J-integral within a small margin of error when the plate width-to-thickness is small. However, as the plate width-to-thickness ratio increases, the margin of error increases up to 3.5 times the estimated J.

Original languageEnglish
Pages (from-to)717-723
Number of pages7
JournalTransactions of the Korean Society of Mechanical Engineers, A
Volume44
Issue number10
DOIs
Publication statusPublished - 2020

Keywords

  • Finite element analysis
  • J-estimation equation
  • J-integral
  • Reference stress method
  • Semi-elliptical surface crack

ASJC Scopus subject areas

  • Mechanical Engineering

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