Dynamic mechanical behavior of low-carbon steel on improved Cowper-Symonds models

Ying Li; Xiao Bin Li; Wei Guo Wu; Shuang Xi Xu; Xiang Shao Kong

doi:10.3969/j.issn.1007-7294.2015.08.008

Dynamic mechanical behavior of low-carbon steel on improved Cowper-Symonds models

Ying Li, Xiao Bin Li, Wei Guo Wu, Shuang Xi Xu^*, Xiang Shao Kong

^*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

The σ-ε relation of ship low-carbon steel under different strain rates (0.0002~3900 s^-1) was studied experimentally with the MTS (Materials test system) and the split Hopkinson press bar (SHPB), two improved Cowper-Symonds models and the parameters were obtained, and then the applicability of the models was investigated. The experimental results show that the low-carbon steel has a remarkable strain rate effect and a nonlinear strain hardening effect. Dynamic constitutive model of ship low-carbon steel can describe the dynamic mechanical behaviors under high strain rate. Application of the CS models should be careful when strain rate is higher than 2000 s^-1.

Original language	English
Pages (from-to)	944-949
Number of pages	6
Journal	Chuan Bo Li Xue/Journal of Ship Mechanics
Volume	19
Issue number	8
DOIs	https://doi.org/10.3969/j.issn.1007-7294.2015.08.008
Publication status	Published - 1 Aug 2015
Externally published	Yes

Keywords

Cowper-Symonds model
Dynamic mechanical behavior
Impact loading
Ship low-carbon steel

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10.3969/j.issn.1007-7294.2015.08.008

Cite this

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title = "Dynamic mechanical behavior of low-carbon steel on improved Cowper-Symonds models",

abstract = "The σ-ε relation of ship low-carbon steel under different strain rates (0.0002~3900 s-1) was studied experimentally with the MTS (Materials test system) and the split Hopkinson press bar (SHPB), two improved Cowper-Symonds models and the parameters were obtained, and then the applicability of the models was investigated. The experimental results show that the low-carbon steel has a remarkable strain rate effect and a nonlinear strain hardening effect. Dynamic constitutive model of ship low-carbon steel can describe the dynamic mechanical behaviors under high strain rate. Application of the CS models should be careful when strain rate is higher than 2000 s-1.",

keywords = "Cowper-Symonds model, Dynamic mechanical behavior, Impact loading, Ship low-carbon steel",

author = "Ying Li and Li, {Xiao Bin} and Wu, {Wei Guo} and Xu, {Shuang Xi} and Kong, {Xiang Shao}",

year = "2015",

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doi = "10.3969/j.issn.1007-7294.2015.08.008",

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T1 - Dynamic mechanical behavior of low-carbon steel on improved Cowper-Symonds models

AU - Li, Ying

AU - Li, Xiao Bin

AU - Wu, Wei Guo

AU - Xu, Shuang Xi

AU - Kong, Xiang Shao

PY - 2015/8/1

Y1 - 2015/8/1

N2 - The σ-ε relation of ship low-carbon steel under different strain rates (0.0002~3900 s-1) was studied experimentally with the MTS (Materials test system) and the split Hopkinson press bar (SHPB), two improved Cowper-Symonds models and the parameters were obtained, and then the applicability of the models was investigated. The experimental results show that the low-carbon steel has a remarkable strain rate effect and a nonlinear strain hardening effect. Dynamic constitutive model of ship low-carbon steel can describe the dynamic mechanical behaviors under high strain rate. Application of the CS models should be careful when strain rate is higher than 2000 s-1.

AB - The σ-ε relation of ship low-carbon steel under different strain rates (0.0002~3900 s-1) was studied experimentally with the MTS (Materials test system) and the split Hopkinson press bar (SHPB), two improved Cowper-Symonds models and the parameters were obtained, and then the applicability of the models was investigated. The experimental results show that the low-carbon steel has a remarkable strain rate effect and a nonlinear strain hardening effect. Dynamic constitutive model of ship low-carbon steel can describe the dynamic mechanical behaviors under high strain rate. Application of the CS models should be careful when strain rate is higher than 2000 s-1.

KW - Cowper-Symonds model

KW - Dynamic mechanical behavior

KW - Impact loading

KW - Ship low-carbon steel

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DO - 10.3969/j.issn.1007-7294.2015.08.008

M3 - Article

AN - SCOPUS:84941101958

SN - 1007-7294

VL - 19

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JO - Chuan Bo Li Xue/Journal of Ship Mechanics

JF - Chuan Bo Li Xue/Journal of Ship Mechanics

IS - 8

ER -

Dynamic mechanical behavior of low-carbon steel on improved Cowper-Symonds models

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Keywords

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