Finite element damage analysis for cast stainless steel (CF8M) material considering variance in experimental data

Jun Young Jeon, Nak Hyun Kim, Yun-Jae Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The damage analysis method in this paper needs a material property and failure criteria. The material properties and the failure criteria could be easily obtained from the results of notched bar tensile tests carried out on other materials studied previously. However, for the cast stainless steel (CF8M) material in this paper, because of the variance in the results from notched bar tensile tests under the same conditions, the material property and the failure criteria could be obtained differently, depending on the analyzer. Therefore, a proper procedure that can confirm the material property and failure criteria are needed. In this work, the averaged material property was obtained from the notched bar with a 16-mm notch radius, and three failure criteria for CF8M material by finite element analysis were obtained. Applying the material property and the failure criteria, FE damage analysis for the J-R fracture toughness test was conducted. For validation, the simulated results were compared with the experimental results.

Original languageEnglish
Pages (from-to)769-776
Number of pages8
JournalTransactions of the Korean Society of Mechanical Engineers, A
Volume36
Issue number7
DOIs
Publication statusPublished - 2012 Jul 1

Keywords

  • Damage method
  • Ductile failure
  • Finite element analysis

ASJC Scopus subject areas

  • Mechanical Engineering

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