Fracture-toughness estimation from small-punch test in hydrogen exhibiting ductile and ductile–brittle fracture modes

Jin Ha Hwang; Ki Wan Seo; Yun Jae Kim; Ki Seok Kim

doi:10.1016/j.euromechsol.2023.105193

Fracture-toughness estimation from small-punch test in hydrogen exhibiting ductile and ductile–brittle fracture modes

Jin Ha Hwang, Ki Wan Seo, Yun Jae Kim, Ki Seok Kim

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

In this study, an energy-based fracture toughness estimation method based on a small-punch test in a hydrogen environment, exhibiting either ductile or combined ductile and brittle fracture modes is proposed. For the ductile fracture mode, the energy term due to gas pressure in the small-punch test in hydrogen environment is simply added to the existing energy-based fracture toughness estimation equation. For the combined ductile and fracture mode, modified equations for the plastic energy term are proposed to correct overestimation due to brittle cracking. The estimated fracture toughness values are shown to consistent with the published API X70 and X42 test data.

Original language	English
Article number	105193
Journal	European Journal of Mechanics, A/Solids
Volume	103
DOIs	https://doi.org/10.1016/j.euromechsol.2023.105193
Publication status	Published - 2024 Jan 1

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Masson SAS

Keywords

Combined ductile and brittle fracture mode
Ductile fracture mode
Fracture toughness estimation
Small punch test in hydrogen

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering
General Physics and Astronomy

Access to Document

10.1016/j.euromechsol.2023.105193

Cite this

@article{5326797a68d9438eafbb10808efa85e3,

title = "Fracture-toughness estimation from small-punch test in hydrogen exhibiting ductile and ductile–brittle fracture modes",

abstract = "In this study, an energy-based fracture toughness estimation method based on a small-punch test in a hydrogen environment, exhibiting either ductile or combined ductile and brittle fracture modes is proposed. For the ductile fracture mode, the energy term due to gas pressure in the small-punch test in hydrogen environment is simply added to the existing energy-based fracture toughness estimation equation. For the combined ductile and fracture mode, modified equations for the plastic energy term are proposed to correct overestimation due to brittle cracking. The estimated fracture toughness values are shown to consistent with the published API X70 and X42 test data.",

keywords = "Combined ductile and brittle fracture mode, Ductile fracture mode, Fracture toughness estimation, Small punch test in hydrogen",

author = "Hwang, {Jin Ha} and Seo, {Ki Wan} and Kim, {Yun Jae} and Kim, {Ki Seok}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Masson SAS",

year = "2024",

month = jan,

day = "1",

doi = "10.1016/j.euromechsol.2023.105193",

language = "English",

volume = "103",

journal = "European Journal of Mechanics, A/Solids",

issn = "0997-7538",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Fracture-toughness estimation from small-punch test in hydrogen exhibiting ductile and ductile–brittle fracture modes

AU - Hwang, Jin Ha

AU - Seo, Ki Wan

AU - Kim, Yun Jae

AU - Kim, Ki Seok

PY - 2024/1/1

Y1 - 2024/1/1

N2 - In this study, an energy-based fracture toughness estimation method based on a small-punch test in a hydrogen environment, exhibiting either ductile or combined ductile and brittle fracture modes is proposed. For the ductile fracture mode, the energy term due to gas pressure in the small-punch test in hydrogen environment is simply added to the existing energy-based fracture toughness estimation equation. For the combined ductile and fracture mode, modified equations for the plastic energy term are proposed to correct overestimation due to brittle cracking. The estimated fracture toughness values are shown to consistent with the published API X70 and X42 test data.

AB - In this study, an energy-based fracture toughness estimation method based on a small-punch test in a hydrogen environment, exhibiting either ductile or combined ductile and brittle fracture modes is proposed. For the ductile fracture mode, the energy term due to gas pressure in the small-punch test in hydrogen environment is simply added to the existing energy-based fracture toughness estimation equation. For the combined ductile and fracture mode, modified equations for the plastic energy term are proposed to correct overestimation due to brittle cracking. The estimated fracture toughness values are shown to consistent with the published API X70 and X42 test data.

KW - Combined ductile and brittle fracture mode

KW - Ductile fracture mode

KW - Fracture toughness estimation

KW - Small punch test in hydrogen

UR - http://www.scopus.com/inward/record.url?scp=85178621073&partnerID=8YFLogxK

U2 - 10.1016/j.euromechsol.2023.105193

DO - 10.1016/j.euromechsol.2023.105193

M3 - Article

AN - SCOPUS:85178621073

SN - 0997-7538

VL - 103

JO - European Journal of Mechanics, A/Solids

JF - European Journal of Mechanics, A/Solids

M1 - 105193

ER -

Fracture-toughness estimation from small-punch test in hydrogen exhibiting ductile and ductile–brittle fracture modes

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this