On the Temperature Dependence of the Mechanical Properties of a Shock-Compressed Porous Material in a Viscoplastic Hot Spot Model
A. V. Attetkov, A. V. Kotovich, E. V. Pilyavskaya
Bauman Moscow State Technical University, Moscow, Russia
Keywords: shock wave, two-phase porous material, temperature dependence of phase mechanical properties, melting, temperature field
Abstract
This paper is devoted to the development of mathematical models and methods for modeling mesoscopic processes of thermal dissipation and heat transfer in a two-phase porous material under shock-wave loading. The focus is on the influence of the temperature dependence of the mechanical properties of the phases on the resulting temperature field of a shock-compressed porous material in the absence and presence of phase transformations. Simplified analogs of the basic mathematical model used to study the temperature state of a two-phase porous material, taking into account the temperature dependence of its mechanical properties, are analyzed in detail.
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