A method of viscoelastic two-scale analyses for FRP

Kenjiro Terada, Yasuaki Hamana, Norio Hirayama

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    The aim of this study is to propose a strategy for performing viscoelastic two-scale analyses for fiber-reinforced plastic (FRP) with periodic microstructures (unit cells), based on the assumption that the anisotropic generalized Maxwell model can be employed for the homogenized viscoelastic constitutive law. We first summarize a method of numerical material testing, for which the standard finite element method is applied to solve the extended system of micro-scale governing equations incorporated with external material points, or equivalently control nodes. Secondly, the anisotropic generalized Maxwell model is provided. Thirdly, we propose a method of parameter identification that uses the "measured data" by the numerical relaxation tests conducted with a relevant set of macroscopic strains. Finally, the trains of two-scale viscoelastic analyses is exemplified to demonstrate the validity of the proposed method.

    Original languageEnglish
    Pages (from-to)1674-1683
    Number of pages10
    JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
    Volume75
    Issue number760
    DOIs
    Publication statusPublished - 2009 Dec

    Keywords

    • Anisotropy
    • FRP
    • Homogenization
    • Multiscale analysis
    • Numerical material testing
    • Viscoelasticity

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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