<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In this study, parameters of the Grüneisen equation of state for GH4169 alloy were calculated based on multi-scale impact technology and first-principles calculation methods. The calculated parameters are consistent with the results of Liu et al., which primarily verifies the accuracy of the method. The AUTODYN software was used for numerical simulation of dynamic plate impact experiments. The parameters of the Grüneisen equation of GH4169 alloy were used as input to verify its accuracy. Comparing and analysing the speed of the free surface particle and the actual experimental measurement point at the same position, it is concluded that the simulated value is consistent with the experimental value. The morphology of the flying piece and the target have the same characteristics, which proves that Grüneisen equation of state parameters obtained by proposed parameter identification method are practical and reliable.</p>
</abstract>

In this study, parameters of the Grüneisen equation of state for GH4169 alloy were calculated based on multi-scale impact technology and first-principles calculation methods. The calculated parameters are consistent with the results of Liu et al., which primarily verifies the accuracy of the method. The AUTODYN software was used for numerical simulation of dynamic plate impact experiments. The parameters of the Grüneisen equation of GH4169 alloy were used as input to verify its accuracy. Comparing and analysing the speed of the free surface particle and the actual experimental measurement point at the same position, it is concluded that the simulated value is consistent with the experimental value. The morphology of the flying piece and the target have the same characteristics, which proves that Grüneisen equation of state parameters obtained by proposed parameter identification method are practical and reliable.

Parameter Id of Metal Hi-pressure State Equation

Applied Mathematics and Nonlinear Sciences

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"Parameter Id of Metal Hi-pressure State Equation"}

In this study, parameters of the Grüneisen equation of state for GH4169 alloy were calculated based on multi-scale impact technology and first-principles...

Parameter Id of Metal Hi-pressure State Equation

Published Online: May 31, 2021

Page range: 2315 - 2330

Received: Jan 18, 2022

Accepted: Mar 27, 2022

DOI: https://doi.org/10.2478/amns.2021.2.00201

Keywords
metal materials, high-pressure equation of state, parameter identification, GH4169 alloy

© 2023 Xuewen Chen, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

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Parameter Id of Metal Hi-pressure State Equation

Published Online: May 31, 2021

Page range: 2315 - 2330

Received: Jan 18, 2022

Accepted: Mar 27, 2022

DOI: https://doi.org/10.2478/amns.2021.2.00201

Keywordsmetal materials, high-pressure equation of state, parameter identification, GH4169 alloy

© 2023 Xuewen Chen, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Fig. 11

Keywords
metal materials, high-pressure equation of state, parameter identification, GH4169 alloy