Determination of a material constitutive equation that includes the effects of strain rate and temperature using an optimization method

Yamada, Hiroyuki; Sakai, Taisei; Ogasawara, Nagahisa; Kokudai, Muneyuki; Shiomitsu, Daisuke; Fukui, Tsutomu

doi:10.1016/j.oceaneng.2023.115719

Ocean Engineering

2023

DOI: 10.1016/j.oceaneng.2023.115719

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Determination of a material constitutive equation that includes the effects of strain rate and temperature using an optimization method

Hiroyuki Yamada,

Taisei Sakai,

Nagahisa Ogasawara

et al.

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2024

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Cited by 2 publications

References 21 publications

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Research on Dynamic Mechanical Behavior of Reinforcing Steel Under Ultrahigh Strain Rate

Sun,

Si,

Wang

2024

steel research int.

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The strain rate effect significantly influences the dynamic mechanical behavior of reinforcing steel under impact loads. To investigate the effect of strain rate on the dynamic mechanical behavior of reinforcing steel, this study conducts dynamic compression tests on four types of reinforcing steel using a Split Hopkinson pressure bar. The results show that there is a significant strain rate effect on the reinforcing steel when the strain rate reaches 103–104 s−1. The experimental results are analyzed using the Johnson–Cook model (J–C model), and the original model is modified based on the error between the model predictions and the experimental results. The results indicate that the modified J–C model, which includes an enhanced strain rate effect term, better predicts the dynamic mechanical behavior of reinforcing steel at ultrahigh strain rates.

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Research on Dynamic Mechanical Behavior of Reinforcing Steel Under Ultrahigh Strain Rate

Sun,

Si,

Wang

2024

steel research int.

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An improved extreme learning machine model for predicting the mechanical property of AZ80 magnesium alloy

Gu,

Jiang,

Guo

et al. 2024

Appl. Phys. A

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Determination of a material constitutive equation that includes the effects of strain rate and temperature using an optimization method

Cited by 2 publications

References 21 publications

Research on Dynamic Mechanical Behavior of Reinforcing Steel Under Ultrahigh Strain Rate

Research on Dynamic Mechanical Behavior of Reinforcing Steel Under Ultrahigh Strain Rate

An improved extreme learning machine model for predicting the mechanical property of AZ80 magnesium alloy

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