A continuum damage model for thick composite materials subjected to high-rate dynamic loading

P. W. Randles, J. A. Nemes

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A continuum damage model (CDM) is developed to study the response of thick laminated composite materials subjected to high-rate loading processes. A vector damage description is used to represent evolving modes of damage associated with certain orientations of brittle cracking of the matrix material. A simple maximum strain criterion is used for fiber breakage with no allowance for evolution. Phenomenological damage evolution equations are postulated in terms of the current state of damage, stress above a current threshold, and material properties controlling evolution rates, resulting in implicitly rate-dependent response. Specific threshold and evolution functions are postulated and used to illustrate the predictive capability of the model for homogeneous deformation fields. A comparison of results to available experimental data for rate-dependent behavior of graphite/epoxy laminated composites shows good agreement.

Original languageEnglish (US)
Pages (from-to)1-13
Number of pages13
JournalMechanics of Materials
Volume13
Issue number1
DOIs
StatePublished - Mar 1992

Fingerprint

Laminated composites
continuums
damage
Graphite epoxy composites
composite materials
Composite materials
Materials properties
Fibers
loading rate
matrix materials
allowances
threshold currents
graphite
fibers
thresholds

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Instrumentation
  • Mechanics of Materials

Cite this

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A continuum damage model for thick composite materials subjected to high-rate dynamic loading. / Randles, P. W.; Nemes, J. A.

In: Mechanics of Materials, Vol. 13, No. 1, 03.1992, p. 1-13.

Research output: Contribution to journalArticle

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