A new model to determine the shear modulus and Poisson's ratio of shock-compressed metals up to the melting point. Issue 4 (2nd October 2021)

• Record Type: Journal Article
• Authors: Kraus, E. I.; Shabalin, I. I.
• Is Part Of: High pressure research. Volume 41:Issue 4(2021)
• Page Start: 353
• Page End: 365
• Publication Date: 2021-10-02
• Subjects: Equation of state -- shear modulus -- Poisson's ratio -- shock impact; High pressure (Science) -- Periodicals; High pressure (Technology) -- Periodicals; 536.41
• DOI: 10.1080/08957959.2021.1976775
• Languages: English
• ISSNs: 0895-7959

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.