NUMERICAL METHOD TO DETERMINE FRACTURE TOUGHNESS UNDER HYDROGEN ENVIRONMENT FROM SMALL PUNCH TEST DATA AND EXPERIMENTAL VALIDATION

Ki Wan Seo, Jin Ha Hwang, Yun Jae Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a simple method to predict the fracture toughness of hydrogen-embrittled material using a hydrogen-embrittlement constant. The effect of hydrogen-embrittlement on fracture strain can be quantified via hydrogen-embrittlement constant, and it can be obtained by simulating small punch test in hydrogen. The fracture toughness of hydrogen-embrittled material can be simply estimated by multiplying the constant on fracture toughness of the un-embrittled material. The result of estimation shows good agreement with the published experimental data.

Original languageEnglish
Title of host publicationCodes and Standards
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791886144
DOIs
Publication statusPublished - 2022
EventASME 2022 Pressure Vessels and Piping Conference, PVP 2022 - Las Vegas, United States
Duration: 2022 Jul 172022 Jul 22

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume1
ISSN (Print)0277-027X

Conference

ConferenceASME 2022 Pressure Vessels and Piping Conference, PVP 2022
Country/TerritoryUnited States
CityLas Vegas
Period22/7/1722/7/22

Keywords

  • Embrittlement constant
  • Fracture toughness
  • Hydrogen-embrittlement
  • Small punch test

ASJC Scopus subject areas

  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'NUMERICAL METHOD TO DETERMINE FRACTURE TOUGHNESS UNDER HYDROGEN ENVIRONMENT FROM SMALL PUNCH TEST DATA AND EXPERIMENTAL VALIDATION'. Together they form a unique fingerprint.

Cite this