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Identification of the Characteristics of Viscoelastic Materials during Repeated Compression after Unloading by the Numerical-Graphical Method

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Abstract

The problem of describing the behavior of a highly filled polymeric material under compression, which was preceded by preliminary compression and unloading, is considered. The peculiarity of the compression diagrams obtained in the experiment is the downward convexity of the curves of the stress modulus versus time. To solve this problem, a variant of the non-linear endochronic theory of aging viscoelastic materials with several aging and viscosity functions and a numerical-graphical method for identifying the properties of viscoelasticmaterials proposed by the authors earlier, suggesting comparison of the deformation diagrams of intact samples and those that received preliminary damage, are used.

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Authors and Affiliations

  1. Central Scientific Research Institute for Engineering (TsNIIMash), ul. Pionerskaya 4, Korolev, Moscow Region, 141070, Russia

    D. L. Bykov

  2. LomonosovMoscow State University, Moscow, 119992, Russia

    E. D. Martynova

Authors
  1. D. L. Bykov
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  2. E. D. Martynova
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Corresponding author

Correspondence to E. D. Martynova.

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Original Russian Text © D.L. Bykov, E.D. Martynova, 2018, published in Izvestiya Akademii Nauk, Mekhanika Tverdogo Tela, 2018, No. 2, pp. 3–9.

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Bykov, D.L., Martynova, E.D. Identification of the Characteristics of Viscoelastic Materials during Repeated Compression after Unloading by the Numerical-Graphical Method. Mech. Solids 53, 121–126 (2018). https://doi.org/10.3103/S0025654418020012

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  • DOI: https://doi.org/10.3103/S0025654418020012

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