Extracting ductile fracture toughness from small punch test data using numerical modeling

Jun Young Jeon; Yun Jae Kim; Sa Yong Lee; Jin Weon Kim

doi:10.1016/j.ijpvp.2016.02.011

Extracting ductile fracture toughness from small punch test data using numerical modeling

Jun Young Jeon, Yun Jae Kim, Sa Yong Lee, Jin Weon Kim

School of Mechanical Engineering

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

18 Citations (Scopus)

Abstract

This paper presents a numerical method to extract ductile fracture toughness from notched small punch test data using FE ductile damage analysis based on the stress-modified fracture strain model. To validate the proposed method, analysis results are compared with series of mechanical (notched tensile, fracture toughness and small punch) test data for three different materials; low alloy steel SA508 Gr.3, TP316L austenitic stainless steel and CF8M cast austenitic stainless steel. Comparison with experimental fracture toughness data shows that the proposed method can predict fracture initiation values relatively well and tearing resistance conservatively.

Original language	English
Pages (from-to)	204-219
Number of pages	16
Journal	International Journal of Pressure Vessels and Piping
Volume	139-140
DOIs	https://doi.org/10.1016/j.ijpvp.2016.02.011
Publication status	Published - 2016 Mar 1

Keywords

Ductile fracture simulation
Finite element damage analysis
Fracture toughness estimation
Notched small punch test
Stress-modified fracture strain

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/j.ijpvp.2016.02.011

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title = "Extracting ductile fracture toughness from small punch test data using numerical modeling",

abstract = "This paper presents a numerical method to extract ductile fracture toughness from notched small punch test data using FE ductile damage analysis based on the stress-modified fracture strain model. To validate the proposed method, analysis results are compared with series of mechanical (notched tensile, fracture toughness and small punch) test data for three different materials; low alloy steel SA508 Gr.3, TP316L austenitic stainless steel and CF8M cast austenitic stainless steel. Comparison with experimental fracture toughness data shows that the proposed method can predict fracture initiation values relatively well and tearing resistance conservatively.",

keywords = "Ductile fracture simulation, Finite element damage analysis, Fracture toughness estimation, Notched small punch test, Stress-modified fracture strain",

author = "Jeon, {Jun Young} and Kim, {Yun Jae} and Lee, {Sa Yong} and Kim, {Jin Weon}",

note = "Funding Information: This research was supported by Engineering Research Center Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT and Future Planning ( NRF-2007-0056094 ) and the Power Generation & Electricity Delivery of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Ministry of Knowledge Economy, Republic of Korea (No. 20101020300710 ). Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",

year = "2016",

month = mar,

day = "1",

doi = "10.1016/j.ijpvp.2016.02.011",

language = "English",

volume = "139-140",

pages = "204--219",

journal = "International Journal of Pressure Vessels and Piping",

issn = "0308-0161",

publisher = "Elsevier BV",

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T1 - Extracting ductile fracture toughness from small punch test data using numerical modeling

AU - Jeon, Jun Young

AU - Kim, Yun Jae

AU - Lee, Sa Yong

AU - Kim, Jin Weon

N1 - Funding Information: This research was supported by Engineering Research Center Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT and Future Planning ( NRF-2007-0056094 ) and the Power Generation & Electricity Delivery of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Ministry of Knowledge Economy, Republic of Korea (No. 20101020300710 ). Publisher Copyright: © 2016 Elsevier Ltd.

PY - 2016/3/1

Y1 - 2016/3/1

N2 - This paper presents a numerical method to extract ductile fracture toughness from notched small punch test data using FE ductile damage analysis based on the stress-modified fracture strain model. To validate the proposed method, analysis results are compared with series of mechanical (notched tensile, fracture toughness and small punch) test data for three different materials; low alloy steel SA508 Gr.3, TP316L austenitic stainless steel and CF8M cast austenitic stainless steel. Comparison with experimental fracture toughness data shows that the proposed method can predict fracture initiation values relatively well and tearing resistance conservatively.

AB - This paper presents a numerical method to extract ductile fracture toughness from notched small punch test data using FE ductile damage analysis based on the stress-modified fracture strain model. To validate the proposed method, analysis results are compared with series of mechanical (notched tensile, fracture toughness and small punch) test data for three different materials; low alloy steel SA508 Gr.3, TP316L austenitic stainless steel and CF8M cast austenitic stainless steel. Comparison with experimental fracture toughness data shows that the proposed method can predict fracture initiation values relatively well and tearing resistance conservatively.

KW - Ductile fracture simulation

KW - Finite element damage analysis

KW - Fracture toughness estimation

KW - Notched small punch test

KW - Stress-modified fracture strain

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U2 - 10.1016/j.ijpvp.2016.02.011

DO - 10.1016/j.ijpvp.2016.02.011

M3 - Article

AN - SCOPUS:84959489559

VL - 139-140

SP - 204

EP - 219

JO - International Journal of Pressure Vessels and Piping

JF - International Journal of Pressure Vessels and Piping

SN - 0308-0161

ER -

Extracting ductile fracture toughness from small punch test data using numerical modeling

Abstract

Keywords

ASJC Scopus subject areas

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