A method of viscoelastic two-scale analyses for FRP

Kenjiro Terada, Yasuaki Hamana, Norio Hirayama

Research output: Contribution to journalArticlepeer-review

4 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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