Isogeometric analysis of continuum damage in rotation-free composite shells

X. Deng, A. Korobenko, J. Yan, Y. Bazilevs

Research output: Contribution to journalArticlepeer-review

Abstract

A large-deformation, isogeometric rotation-free Kirchhoff-Love shell formulation is equipped with a damage model to efficiently and accurately simulate progressive failure in laminated composite structures. The damage model consists of Hashin's theory of damage initiation, a bilinear material model for damage evolution, and an appropriately chosen Gibbs free-energy density. Four intralaminar modes of failure are considered: Longitudinal and transverse tension, and longitudinal and transverse compression. The choice of shell formulation and modes of failure modeled make the proposed methodology valid in the regime of relatively thin shell structures where damage occurs without significant evidence of delamination. The damage model is extensively validated against experimental data and its use is also illustrated in the context of multiscale composite damage analysis.

Original languageEnglish (US)
Pages (from-to)349-372
Number of pages24
JournalComputer Methods in Applied Mechanics and Engineering
Volume284
DOIs
StatePublished - Feb 1 2015
Externally publishedYes

Keywords

  • Continuum damage modeling
  • Isogeometric analysis
  • Kirchhoff-Love shells
  • Laminated composites
  • Multiscale modeling
  • NURBS

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Computer Science Applications

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