A new model to determine the shear modulus and Poisson's ratio of shock-compressed metals up to the melting point

IF 1.2 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

High Pressure Research Pub Date : 2021-09-13 DOI:10.1080/08957959.2021.1976775

E. I. Kraus, I. Shabalin

引用次数: 2

Abstract

ABSTRACT In this paper, using the few-parametric equation of state, an approach is implemented to the calculation of the longitudinal and bulk sound speeds, as well as the elastic moduli of a number of isotropic metals behind the front of a strong shock wave. The results of theoretical calculations for aluminum are compared with the available shock impact experimental data. A new analytical approximation of the dependence of the Poisson's ratio on the pressure is proposed for metals. Non-monotonic dependence of the shear modulus for uranium on the pressure and temperature in view of the melting behind the shock front is determined.

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一种确定熔点以下冲击压缩金属剪切模量和泊松比的新模型

本文利用少参数状态方程，实现了强激波后各向同性金属的纵向声速、体声速以及弹性模量的计算方法。将理论计算结果与已有的冲击冲击实验数据进行了比较。提出了金属泊松比与压力关系的一种新的解析近似。考虑到激波后的熔化，确定了铀的剪切模量与压力和温度的非单调关系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Pressure Research 物理-物理：综合

CiteScore

3.80

自引率

5.00%

发文量

审稿时长

2 months

期刊介绍： High Pressure Research is the leading journal for research in high pressure science and technology. The journal publishes original full-length papers and short research reports of new developments, as well as timely review articles. It provides an important forum for the presentation of experimental and theoretical advances in high pressure science in subjects such as: condensed matter physics and chemistry geophysics and planetary physics synthesis of new materials chemical kinetics under high pressure industrial applications shockwaves in condensed matter instrumentation and techniques the application of pressure to food / biomaterials Theoretical papers of exceptionally high quality are also accepted.