Dynamic constitutive model of Q235B steel and its application in LS-DYNA

ZHI Xudong; ZHANG Rong; LIN Li; FAN Feng

doi:10.11883/bzycj-2016-0286

Volume 38 Issue 3

Feb. 2018

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ZHI Xudong, ZHANG Rong, LIN Li, FAN Feng. Dynamic constitutive model of Q235B steel and its application in LS-DYNA[J]. Explosion And Shock Waves, 2018, 38(3): 596-602. doi: 10.11883/bzycj-2016-0286

Citation:

ZHI Xudong, ZHANG Rong, LIN Li, FAN Feng. Dynamic constitutive model of Q235B steel and its application in LS-DYNA[J]. Explosion And Shock Waves, 2018, 38(3): 596-602. doi: 10.11883/bzycj-2016-0286

ZHI Xudong, ZHANG Rong, LIN Li, FAN Feng. Dynamic constitutive model of Q235B steel and its application in LS-DYNA[J]. Explosion And Shock Waves, 2018, 38(3): 596-602. doi: 10.11883/bzycj-2016-0286

Citation:

ZHI Xudong, ZHANG Rong, LIN Li, FAN Feng. Dynamic constitutive model of Q235B steel and its application in LS-DYNA[J]. Explosion And Shock Waves, 2018, 38(3): 596-602. doi: 10.11883/bzycj-2016-0286

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Dynamic constitutive model of Q235B steel and its application in LS-DYNA

doi: 10.11883/bzycj-2016-0286

ZHI Xudong^{1, 2},
ZHANG Rong^{2
,
,},
LIN Li³,
FAN Feng^{1, 2}

1.
Key Lab of Structures Dynamic Behavior and Control, Ministry of Education, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China
2.
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China
3.
College of Civil Engineering and Architecture, Harbin University of Science and Technology, Harbin 150080, Heilongjiang, China

Received Date: 2016-09-20
Rev Recd Date: 2017-02-14
Publish Date: 2018-05-25

Abstract

Abstract

In this work we conducted a quasi-static tensile test, a high temperature tensile test and a dynamic tensile test on Q235B steel, the most widely used in steel structures in China, using a multi-functional material testing machine and a split Hopkinson tension bar (SHTB) and, based on the test data obtained, fitted three frequently used material models, i.e. the Cowper-Symonds model, the Johnson-Cook model and the Zerilli-Armstrong model, in LS-DYNA. We then verified their validity by conducting Taylor impact tests. The results showed that Q235B steel was temperature and strain-rate sensitive, that the Cowper-Symonds model was applicable in low velocity impact simulations, that the Johnson-Cook model was suitable for simulations with a wider range of strain-rates, and that the Zerilli-Armstrong model was not recommendable for low velocity impact simulation.
- dynamic constitutive model,
- Q235B steel,
- strain-rate effect,
- Taylor bar

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References(25)

References

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