A robust method for Ramberg-Osgood fit relevant to elastic-plastic J estimates

N. S. Huh, Y. J. Kim, Y. J. Kim, Y. H. Choi, J. S. Yang

Research output: Contribution to journalConference article

Abstract

This paper proposes a robust method for the Ramberg-Osgood (R-O) fit to accurately estimate elastic-plastic J from engineering fracture mechanics analysis based on deformation plasticity. The proposal is based on engineering stress-strain data to determine the R-O parameters, instead of true stress-strain data. Moreover, for practical applications, the method is given not only for the case when full stress-strain data are available but also for the case when only yield and tensile strengths are available. Reliability of the proposed method for the R-O fit is validated against detailed 3-D finite element (FE) analyses for circumferential through-wall cracked pipes under global bending using two different materials, stainless steel and ferritic steel.

Original languageEnglish
Pages (from-to)195-200
Number of pages6
JournalKey Engineering Materials
Volume261-263
Issue numberI
Publication statusPublished - 2004 Jul 27
Externally publishedYes
EventAdvances in Fracture and Failure Prevention: Proceedings of the Fifth International Conference on Fracture and Strength of Solids (FEOFS2003): Second International Conference on Physics and Chemistry of Fracture and Failure Prevention (2nd ICPCF) - Sendai, Japan
Duration: 2003 Oct 202003 Oct 22

Fingerprint

Plastics
Stainless Steel
Ferritic steel
Fracture mechanics
Plasticity
Yield stress
Tensile strength
Stainless steel
Pipe

Keywords

  • Circumferential Through-Wall Crack
  • J-Integral
  • Leak-Before-Break
  • Ramberg-Osgood

ASJC Scopus subject areas

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

Cite this

Huh, N. S., Kim, Y. J., Kim, Y. J., Choi, Y. H., & Yang, J. S. (2004). A robust method for Ramberg-Osgood fit relevant to elastic-plastic J estimates. Key Engineering Materials, 261-263(I), 195-200.

A robust method for Ramberg-Osgood fit relevant to elastic-plastic J estimates. / Huh, N. S.; Kim, Y. J.; Kim, Y. J.; Choi, Y. H.; Yang, J. S.

In: Key Engineering Materials, Vol. 261-263, No. I, 27.07.2004, p. 195-200.

Research output: Contribution to journalConference article

Huh, NS, Kim, YJ, Kim, YJ, Choi, YH & Yang, JS 2004, 'A robust method for Ramberg-Osgood fit relevant to elastic-plastic J estimates', Key Engineering Materials, vol. 261-263, no. I, pp. 195-200.
Huh, N. S. ; Kim, Y. J. ; Kim, Y. J. ; Choi, Y. H. ; Yang, J. S. / A robust method for Ramberg-Osgood fit relevant to elastic-plastic J estimates. In: Key Engineering Materials. 2004 ; Vol. 261-263, No. I. pp. 195-200.
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