Stress intensity factor of high strength steel

Kegui Xin, Jia Guo, Minghua He

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The stress intensity factor was calculated using finite element analysis (FEM) to investigate the fracture behaviour of a structure made of high strength steel. Comparing with the wide plate test shows that the finite element analysis can be used for the fracture performance of the high strength steel while considering crack forms, boundary and loading conditions. The integration analyzing based on the fracture mechanics determinates the worst allowed conditions. The relationships between the crack sizes and the coefficient KI (stress intensity factor) were given after the coefficient was calculated at a certain initial crack. Then, a simplified formula was also obtained for engineering application.

Original languageEnglish
Pages (from-to)1901-1905
Number of pages5
JournalQinghua Daxue Xuebao/Journal of Tsinghua University
Volume50
Issue number12
Publication statusPublished - 2010 Dec 1
Externally publishedYes

Keywords

  • Finite element method
  • Fracture damage
  • High strength steel
  • Stress intensity factor

ASJC Scopus subject areas

  • Engineering(all)
  • Computer Science Applications
  • Applied Mathematics

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