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Computational optimization of characteristics for composites of viscoelastic components

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Abstract

The problem of describing of the viscoelastic properties of composite materials that consist of more than one viscoelastic component is studied. It is supposed that the viscoelastic properties of the components are known. The difficulty in the application of the mixture theory arises in the cases when the properties are described by integral operators with different integral kernels. This difficulty is avoided by the approximations of the viscoelastic operators in the stress–strain relations. A method is proposed to obtain appropriate approximations that reduce all the viscoelastic operators to a general kernel using rational approximations of their Laplace transforms. The proposed method allows for the reduction of the approximation error for related operators. Examples are given for the adjustment of viscoelastic functions in the cases of increase and decrease of functions parameter.

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Authors and Affiliations

  1. S.P. Timoshenko Institute of Mechanics, National Academy of Sciences, Nesterov Street 3, 03057, Kyiv, Ukraine

    M. F. Selivanov & Y. O. Chornoivan

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  1. M. F. Selivanov
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  2. Y. O. Chornoivan
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Correspondence to Y. O. Chornoivan.

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Selivanov, M.F., Chornoivan, Y.O. Computational optimization of characteristics for composites of viscoelastic components. J Eng Math 74, 91–100 (2012). https://doi.org/10.1007/s10665-011-9477-1

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  • DOI: https://doi.org/10.1007/s10665-011-9477-1

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