Numerical Study of Wave Propagation in Nonlinear Dissipative Material
Yu. M. Volchkov1,2, I. O. Bogulskii3,4
1Novosibirsk National Research State University, Novosibirsk, 630090 Russia
2Lavrent'ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
3Siberian Federal University, Krasnoyarsk, 660041, Russia
4Krasnoyarsk State Agrarian University, Krasnoyarsk, 660049, Russia
Keywords: metal rubber, damping, numerical modeling, nonlinear elasticity, deformation theory
Abstract
We have investigated a class of materials whose experimental stress-strain behavior does not allow them to be considered plastic or elastic. They are not elastic since unloading occurs along a curve significantly different from the loading curve; nor are they plastic since in a full loading-unloading cycle, residual deformations are absent. As such materials we investigate so-called metal rubbers - materials made from twisted wire pressed into an almost homogeneous body. The propagation of shock waves in these materials is studied using a one-dimensional model.
DOI: 10.1134/S0021894421050126
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