Specimen size effects in the cryogenic fracture toughness testing of Fe-12Cr-12Ni-10Mn-0.24N stainless steel

Y. Shindo, K. Horiguchi, J. Yamada

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

This paper examines the effects of test specimen size on the cryogenic fracture toughness properties of a nitrogen-strengthened austenitic stainless steel for superconducting magnet structures in fusion energy systems. Single-specimen J-integral tests were performed on CT (compact tension) specimens with and without side-grooves in liquid helium at 4 K. The aspect ratio (specimen width to thickness) and thickness were varied. A three-dimensional finite element analysis was also conducted to investigate the effects of specimen thickness and side-groove on the through thickness distributions of the J-integral values. The results of the finite element analysis are used to supplement the experimental data.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalFusion Engineering and Design
Volume73
Issue number1
DOIs
Publication statusPublished - 2005 Apr

Keywords

  • Austenitic stainless steel
  • Compact tension
  • Finite element analysis
  • Fracture mechanics
  • Liquid helium temperature
  • Superconducting fusion magnets

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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