Evaluation of the residual fatigue lifetime of a semi-elliptical crack of a Low-Alloy steel pressure vessel under High-Pressure gaseous hydrogen

Sang Min Lee, Sang Youn Park, Un Bong Baek, Byoung Ho Choi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The demand for broadening fatigue crack growth behavior has increased owing to the extended use of hydrogen gas as an energy carrier, and it is known that high-pressure hydrogen has a major effect on fatigue crack growth behavior. In this study, the effect of high-pressure hydrogen on an SA-372 Grade J steel pressure vessel was analyzed using fatigue crack growth testing, fracture toughness testing, and finite element analysis. A test was performed to compare the fatigue crack growth of SA-372 Grade J steel in ambient air and 99-MPa hydrogen environments. The test results, including the identified degradation of fracture toughness and the presence of hydrogen inflection in the fatigue crack growth rate, were used in the finite element analysis to analyze the fatigue crack growth behavior under various loading and environmental conditions. The residual fatigue life was evaluated considering the morphological evolution of the crack during growth, the initial aspect ratio, and the initial crack-to-depth ratio.

Original languageEnglish
Article number107875
JournalInternational Journal of Fatigue
Volume176
DOIs
Publication statusPublished - 2023 Nov

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Ltd

Keywords

  • Fatigue crack growth
  • Fatigue life
  • Finite element analysis
  • Fracture toughness
  • Hydrogen embrittlement

ASJC Scopus subject areas

  • Modelling and Simulation
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Fingerprint

Dive into the research topics of 'Evaluation of the residual fatigue lifetime of a semi-elliptical crack of a Low-Alloy steel pressure vessel under High-Pressure gaseous hydrogen'. Together they form a unique fingerprint.

Cite this