Effect of strain rate and stress triaxiality on fracture strain of 304 stainless steels for canister impact simulation

Jun Min Seo; Hune Tae Kim; Yun Jae Kim; Hiroyuki Yamada; Tomohisa Kumagai; Hayato Tokunaga; Naoki Miura

doi:10.1016/j.net.2022.02.002

Effect of strain rate and stress triaxiality on fracture strain of 304 stainless steels for canister impact simulation

Jun Min Seo, Hune Tae Kim, Yun Jae Kim, Hiroyuki Yamada, Tomohisa Kumagai, Hayato Tokunaga, Naoki Miura

School of Mechanical Engineering

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

3 Citations (Scopus)

Abstract

In this paper, smooth and notched bar tensile tests of austenitic stainless steel 304 are performed, covering four different multi-axial stress states and six different strain rate conditions, to investigate the effect of the stress triaxiality and strain rate on fracture strain. Test data show that the measured true fracture strain tends to decrease with increasing stress triaxiality and strain rate. The test data are then quantified using the Johnson-Cook (J-C) fracture strain model incorporating combined effects of the stress triaxiality and strain rate. The determined J-C model can predict true fracture strain overall conservatively with the difference less than 20%. The conservatism in the strain-based acceptance criteria in ASME B&PV Code, Section III, Appendix FF is also discussed.

Original language	English
Pages (from-to)	2386-2394
Number of pages	9
Journal	Nuclear Engineering and Technology
Volume	54
Issue number	7
DOIs	https://doi.org/10.1016/j.net.2022.02.002
Publication status	Published - 2022 Jul

Keywords

Austenitic stainless steel
Fracture strain
Strain rate
Strain-based acceptance criteria
Stress triaxiality

ASJC Scopus subject areas

Nuclear Energy and Engineering

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10.1016/j.net.2022.02.002

Cite this

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title = "Effect of strain rate and stress triaxiality on fracture strain of 304 stainless steels for canister impact simulation",

abstract = "In this paper, smooth and notched bar tensile tests of austenitic stainless steel 304 are performed, covering four different multi-axial stress states and six different strain rate conditions, to investigate the effect of the stress triaxiality and strain rate on fracture strain. Test data show that the measured true fracture strain tends to decrease with increasing stress triaxiality and strain rate. The test data are then quantified using the Johnson-Cook (J-C) fracture strain model incorporating combined effects of the stress triaxiality and strain rate. The determined J-C model can predict true fracture strain overall conservatively with the difference less than 20%. The conservatism in the strain-based acceptance criteria in ASME B&PV Code, Section III, Appendix FF is also discussed.",

keywords = "Austenitic stainless steel, Fracture strain, Strain rate, Strain-based acceptance criteria, Stress triaxiality",

author = "Seo, {Jun Min} and Kim, {Hune Tae} and Kim, {Yun Jae} and Hiroyuki Yamada and Tomohisa Kumagai and Hayato Tokunaga and Naoki Miura",

note = "Funding Information: Part of this work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No.NRF-2019M2D2A2048296). We acknowledge to Mr. Tsunemoto Yoshik, CRIEPI to obtain supporting experimental results. Funding Information: Part of this work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. NRF-2019M2D2A2048296 ). We acknowledge to Mr. Tsunemoto Yoshik, CRIEPI to obtain supporting experimental results. Publisher Copyright: {\textcopyright} 2022 Korean Nuclear Society",

year = "2022",

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doi = "10.1016/j.net.2022.02.002",

language = "English",

volume = "54",

pages = "2386--2394",

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TY - JOUR

T1 - Effect of strain rate and stress triaxiality on fracture strain of 304 stainless steels for canister impact simulation

AU - Seo, Jun Min

AU - Kim, Hune Tae

AU - Kim, Yun Jae

AU - Yamada, Hiroyuki

AU - Kumagai, Tomohisa

AU - Tokunaga, Hayato

AU - Miura, Naoki

N1 - Funding Information: Part of this work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No.NRF-2019M2D2A2048296). We acknowledge to Mr. Tsunemoto Yoshik, CRIEPI to obtain supporting experimental results. Funding Information: Part of this work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. NRF-2019M2D2A2048296 ). We acknowledge to Mr. Tsunemoto Yoshik, CRIEPI to obtain supporting experimental results. Publisher Copyright: © 2022 Korean Nuclear Society

PY - 2022/7

Y1 - 2022/7

N2 - In this paper, smooth and notched bar tensile tests of austenitic stainless steel 304 are performed, covering four different multi-axial stress states and six different strain rate conditions, to investigate the effect of the stress triaxiality and strain rate on fracture strain. Test data show that the measured true fracture strain tends to decrease with increasing stress triaxiality and strain rate. The test data are then quantified using the Johnson-Cook (J-C) fracture strain model incorporating combined effects of the stress triaxiality and strain rate. The determined J-C model can predict true fracture strain overall conservatively with the difference less than 20%. The conservatism in the strain-based acceptance criteria in ASME B&PV Code, Section III, Appendix FF is also discussed.

AB - In this paper, smooth and notched bar tensile tests of austenitic stainless steel 304 are performed, covering four different multi-axial stress states and six different strain rate conditions, to investigate the effect of the stress triaxiality and strain rate on fracture strain. Test data show that the measured true fracture strain tends to decrease with increasing stress triaxiality and strain rate. The test data are then quantified using the Johnson-Cook (J-C) fracture strain model incorporating combined effects of the stress triaxiality and strain rate. The determined J-C model can predict true fracture strain overall conservatively with the difference less than 20%. The conservatism in the strain-based acceptance criteria in ASME B&PV Code, Section III, Appendix FF is also discussed.

KW - Austenitic stainless steel

KW - Fracture strain

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KW - Strain-based acceptance criteria

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Effect of strain rate and stress triaxiality on fracture strain of 304 stainless steels for canister impact simulation

Abstract

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ASJC Scopus subject areas

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