Identification of the model of nonlinear viscoelasticity of filled polymer materials in millisecond time rangeстатья
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Дата последнего поиска статьи во внешних источниках: 11 апреля 2019 г.
Аннотация:Determination of mechanical characteristics of filled polymer materials in shock wave processes is of interest in calculations of the strength of these materials. The standard computation methods are based on the use of the linear theory of viscoelasticity, where there is no distinction between the active and passive deformation processes. In the present paper, dynamical experiment and theoretical modeling are used to illustrate the important role played by the sharp decrease in the resistance of a filled polymer material in unloading (in the millisecond time range). The higher the degree of filling of this material, the more significant this effect is.