Features of behavior of the contact boundary of metals during explosion welding: Numerical simulation

31st International Conference on Equations of State for Matter

Sultanov, V.G.^1 ; Shutov, A.V.^1

Institute of Problems of Chemical Physics, Russian Academy of Sciences, Academician Semenov Avenue 1, Chernogolovka, Moscow Region

142432, Russia^1

关键词: Contact boundary;    Elasto-plastic;    Elastoplastic behavior;    Hydrodynamic behavior;    Oblique impact;    Periodic waves;    Source of instability;    Wave formation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/774/1/012050/pdf
DOI  :  10.1088/1742-6596/774/1/012050

来源: IOP

【 摘 要 】

The results of numerical simulation of wave formation under an oblique impact of metal plates during explosion welding are presented. The numerical simulation was carried out on the basis of the elastoplastic approximation. It is shown that the elastoplastic behavior of metals may be a possible source of instabilities. Further evolution of the process of wave formation and the formation of a periodic wave structure of the interface are already determined by the hydrodynamic behavior of materials. The temperature at the contact boundary of plates obtained in the calculation exceeds the melting point. The calculated wavelengths coincide with the experimental data.