Determination of parameters of Johnson-Cook models of Q235B steel

Li Lin; Xu Dong Zhi; Feng Fan; Shang Jiu Meng; Jun Jie Su

doi:10.13465/j.cnki.jvs.2014.09.028

Determination of parameters of Johnson-Cook models of Q235B steel

Li Lin^*
, Xu Dong Zhi
, Feng Fan
, Shang Jiu Meng
, Jun Jie Su

^*Corresponding author for this work

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

102 Scopus citations

Abstract

Strength and ductility data for Q235B steel from 20°C to 950°C were obtained from tension tests with smooth cylindrical specimens (SCSs). The strain rate sensitivity was studied by conducting split hopkinson tension bar (SHTB) tests and uniaxial tension tests of SCSs. The influence of stress triaxiality on ductility was revealed by conducting upsetting tests of cylinder specimens, tension tests of pre-notched cylinder specimens and torsion tests of SCSs. Slightly modified versions of two Johnson-Cook (J-C) models describing flow stress and failure strain were presented to characterize the properties of Q235B steel as a function of strain rate, temperature and stress triaxiality. The corresponding model parameters were calibrated based on the test data and with the help of finite element simulation. The validity of the model parameters was verified with Taylor impact tests.

Original language	English
Pages (from-to)	153-158+172
Journal	Zhendong yu Chongji/Journal of Vibration and Shock
Volume	33
Issue number	9
DOIs	https://doi.org/10.13465/j.cnki.jvs.2014.09.028
State	Published - 2014
Externally published	Yes

Keywords

Johnson-Cook constitutive relation and failure model
Mechanical property test
Solid mechanics
Strength and ductility

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10.13465/j.cnki.jvs.2014.09.028

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title = "Determination of parameters of Johnson-Cook models of Q235B steel",

abstract = "Strength and ductility data for Q235B steel from 20°C to 950°C were obtained from tension tests with smooth cylindrical specimens (SCSs). The strain rate sensitivity was studied by conducting split hopkinson tension bar (SHTB) tests and uniaxial tension tests of SCSs. The influence of stress triaxiality on ductility was revealed by conducting upsetting tests of cylinder specimens, tension tests of pre-notched cylinder specimens and torsion tests of SCSs. Slightly modified versions of two Johnson-Cook (J-C) models describing flow stress and failure strain were presented to characterize the properties of Q235B steel as a function of strain rate, temperature and stress triaxiality. The corresponding model parameters were calibrated based on the test data and with the help of finite element simulation. The validity of the model parameters was verified with Taylor impact tests.",

keywords = "Johnson-Cook constitutive relation and failure model, Mechanical property test, Solid mechanics, Strength and ductility",

author = "Li Lin and Zhi, \{Xu Dong\} and Feng Fan and Meng, \{Shang Jiu\} and Su, \{Jun Jie\}",

year = "2014",

doi = "10.13465/j.cnki.jvs.2014.09.028",

language = "英语",

volume = "33",

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journal = "Zhendong yu Chongji/Journal of Vibration and Shock",

issn = "1000-3835",

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number = "9",

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T1 - Determination of parameters of Johnson-Cook models of Q235B steel

AU - Lin, Li

AU - Zhi, Xu Dong

AU - Fan, Feng

AU - Meng, Shang Jiu

AU - Su, Jun Jie

PY - 2014

Y1 - 2014

N2 - Strength and ductility data for Q235B steel from 20°C to 950°C were obtained from tension tests with smooth cylindrical specimens (SCSs). The strain rate sensitivity was studied by conducting split hopkinson tension bar (SHTB) tests and uniaxial tension tests of SCSs. The influence of stress triaxiality on ductility was revealed by conducting upsetting tests of cylinder specimens, tension tests of pre-notched cylinder specimens and torsion tests of SCSs. Slightly modified versions of two Johnson-Cook (J-C) models describing flow stress and failure strain were presented to characterize the properties of Q235B steel as a function of strain rate, temperature and stress triaxiality. The corresponding model parameters were calibrated based on the test data and with the help of finite element simulation. The validity of the model parameters was verified with Taylor impact tests.

AB - Strength and ductility data for Q235B steel from 20°C to 950°C were obtained from tension tests with smooth cylindrical specimens (SCSs). The strain rate sensitivity was studied by conducting split hopkinson tension bar (SHTB) tests and uniaxial tension tests of SCSs. The influence of stress triaxiality on ductility was revealed by conducting upsetting tests of cylinder specimens, tension tests of pre-notched cylinder specimens and torsion tests of SCSs. Slightly modified versions of two Johnson-Cook (J-C) models describing flow stress and failure strain were presented to characterize the properties of Q235B steel as a function of strain rate, temperature and stress triaxiality. The corresponding model parameters were calibrated based on the test data and with the help of finite element simulation. The validity of the model parameters was verified with Taylor impact tests.

KW - Johnson-Cook constitutive relation and failure model

KW - Mechanical property test

KW - Solid mechanics

KW - Strength and ductility

UR - https://www.scopus.com/pages/publications/84902106581

U2 - 10.13465/j.cnki.jvs.2014.09.028

DO - 10.13465/j.cnki.jvs.2014.09.028

M3 - 文章

AN - SCOPUS:84902106581

SN - 1000-3835

VL - 33

SP - 153-158+172

JO - Zhendong yu Chongji/Journal of Vibration and Shock

JF - Zhendong yu Chongji/Journal of Vibration and Shock

IS - 9

ER -

Determination of parameters of Johnson-Cook models of Q235B steel

Abstract

Keywords

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