Characterization of the effect of notch bluntness on hydrogen embrittlement and fracture behavior using fe analyses

Jun Young Jeon; Nicolas O. Larrosa; Young Ryun Oh; Yun Jae Kim; Robert A. Ainsworth

doi:10.1115/PVP201545635

Characterization of the effect of notch bluntness on hydrogen embrittlement and fracture behavior using fe analyses

Jun Young Jeon, Nicolas O. Larrosa, Young Ryun Oh, Yun Jae Kim, Robert A. Ainsworth

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

5 Citations (Scopus)

Abstract

This paper introduces a method to characterize the effect of notch bluntness on hydrogen embrittlement for high strength structural steel, FeE 690T, C(T) specimens. Hydrogen concentration depending on notch radius is assessed via finite element (FE) hydrogen diffusion analysis already developed and validated by the authors. Reduction in fracture toughness, K_IC or J_IC, due to hydrogen embrittlement is evaluated by means of a coupled hydrogen diffusion-ductile damage analysis. The ductile damage simulation used in this study is based on the model known as 'stress-modified fracture strain model'. Tensile properties and fracture strains are modified according to the level of hydrogen concentration in the simulation and its effect on the fracture behavior of the specimen is simulated for different notch radii.

Original language	English
Title of host publication	Materials and Fabrication
Publisher	American Society of Mechanical Engineers (ASME)
Volume	6A-2015
ISBN (Electronic)	9780791856994, 9780791856994, 9780791856994, 9780791856994
DOIs	https://doi.org/10.1115/PVP201545635
Publication status	Published - 2015
Event	ASME 2015 Pressure Vessels and Piping Conference, PVP 2015 - Boston, United States Duration: 19 Jul 2015 → 23 Jul 2015

Conference

Conference	ASME 2015 Pressure Vessels and Piping Conference, PVP 2015
Country/Territory	United States
City	Boston
Period	19/07/15 → 23/07/15

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@inproceedings{3bbe1519469149f3abd0a604f2297a14,

title = "Characterization of the effect of notch bluntness on hydrogen embrittlement and fracture behavior using fe analyses",

abstract = "This paper introduces a method to characterize the effect of notch bluntness on hydrogen embrittlement for high strength structural steel, FeE 690T, C(T) specimens. Hydrogen concentration depending on notch radius is assessed via finite element (FE) hydrogen diffusion analysis already developed and validated by the authors. Reduction in fracture toughness, KIC or JIC, due to hydrogen embrittlement is evaluated by means of a coupled hydrogen diffusion-ductile damage analysis. The ductile damage simulation used in this study is based on the model known as 'stress-modified fracture strain model'. Tensile properties and fracture strains are modified according to the level of hydrogen concentration in the simulation and its effect on the fracture behavior of the specimen is simulated for different notch radii.",

author = "Jeon, {Jun Young} and Larrosa, {Nicolas O.} and Oh, {Young Ryun} and Kim, {Yun Jae} and Ainsworth, {Robert A.}",

year = "2015",

doi = "10.1115/PVP201545635",

language = "English",

volume = "6A-2015",

booktitle = "Materials and Fabrication",

publisher = "American Society of Mechanical Engineers (ASME)",

address = "United States",

note = "ASME 2015 Pressure Vessels and Piping Conference, PVP 2015 ; Conference date: 19-07-2015 Through 23-07-2015",

}

Jeon, JY, Larrosa, NO, Oh, YR, Kim, YJ & Ainsworth, RA 2015, Characterization of the effect of notch bluntness on hydrogen embrittlement and fracture behavior using fe analyses. in Materials and Fabrication. vol. 6A-2015, American Society of Mechanical Engineers (ASME), ASME 2015 Pressure Vessels and Piping Conference, PVP 2015, Boston, United States, 19/07/15. https://doi.org/10.1115/PVP201545635

Characterization of the effect of notch bluntness on hydrogen embrittlement and fracture behavior using fe analyses. / Jeon, Jun Young; Larrosa, Nicolas O.; Oh, Young Ryun et al.
Materials and Fabrication. Vol. 6A-2015 American Society of Mechanical Engineers (ASME), 2015.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Characterization of the effect of notch bluntness on hydrogen embrittlement and fracture behavior using fe analyses

AU - Jeon, Jun Young

AU - Larrosa, Nicolas O.

AU - Oh, Young Ryun

AU - Kim, Yun Jae

AU - Ainsworth, Robert A.

PY - 2015

Y1 - 2015

N2 - This paper introduces a method to characterize the effect of notch bluntness on hydrogen embrittlement for high strength structural steel, FeE 690T, C(T) specimens. Hydrogen concentration depending on notch radius is assessed via finite element (FE) hydrogen diffusion analysis already developed and validated by the authors. Reduction in fracture toughness, KIC or JIC, due to hydrogen embrittlement is evaluated by means of a coupled hydrogen diffusion-ductile damage analysis. The ductile damage simulation used in this study is based on the model known as 'stress-modified fracture strain model'. Tensile properties and fracture strains are modified according to the level of hydrogen concentration in the simulation and its effect on the fracture behavior of the specimen is simulated for different notch radii.

AB - This paper introduces a method to characterize the effect of notch bluntness on hydrogen embrittlement for high strength structural steel, FeE 690T, C(T) specimens. Hydrogen concentration depending on notch radius is assessed via finite element (FE) hydrogen diffusion analysis already developed and validated by the authors. Reduction in fracture toughness, KIC or JIC, due to hydrogen embrittlement is evaluated by means of a coupled hydrogen diffusion-ductile damage analysis. The ductile damage simulation used in this study is based on the model known as 'stress-modified fracture strain model'. Tensile properties and fracture strains are modified according to the level of hydrogen concentration in the simulation and its effect on the fracture behavior of the specimen is simulated for different notch radii.

UR - http://www.scopus.com/inward/record.url?scp=84973369543&partnerID=8YFLogxK

U2 - 10.1115/PVP201545635

DO - 10.1115/PVP201545635

M3 - Conference Contribution (Conference Proceeding)

AN - SCOPUS:84973369543

VL - 6A-2015

BT - Materials and Fabrication

PB - American Society of Mechanical Engineers (ASME)

T2 - ASME 2015 Pressure Vessels and Piping Conference, PVP 2015

Y2 - 19 July 2015 through 23 July 2015

ER -

Characterization of the effect of notch bluntness on hydrogen embrittlement and fracture behavior using fe analyses

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