Use of a rate-dependent continuum damage model to describe strain-softening in laminated composites

J. A. Nemes, E. Spéciel

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A continuum damage model developed to describe the rate-dependent dynamic response of laminated polymer composites is investigated for its behavior during strain-softening. The formulation is shown to lead to mathematically well-posed wave propagation problems as well as to unique and stable solutions. Numerical simulations of unidimensional wave-propagation in the through-thickness direction of a transversely isotropic laminate are performed. For a realistic range of damage propagation time constants the results are shown to be mesh insensitive and convergence to a finite amount of dissipated energy is obtained; two issues of concern in modeling dynamically strain-softening solids. Thus the model is validated with respect to strain-softening regimes.

Original languageEnglish (US)
Pages (from-to)1083-1092
Number of pages10
JournalComputers and Structures
Volume58
Issue number6
DOIs
StatePublished - Mar 17 1996

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Modeling and Simulation
  • Materials Science(all)
  • Mechanical Engineering
  • Computer Science Applications

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