Micromechanics-based constitutive modeling for unidirectional laminated composites

Z. Liang, H. K. Lee, Wimal Suaris

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A micromechanics-based constitutive model is developed to predict the effective mechanical behavior of unidirectional laminated composites. A newly developed Eshelby's tensor for an infinite circular cylindrical inclusion [Cheng, Z.Q., Batra, R.C., 1999. Exact Eshelby tensor for a dynamic circular cylindrical inclusion. J. Appl. Mech. 66, 563-565] is adopted to model the unidirectional fibers and is incorporated into the micromechanical framework. The progressive loss of strength resulting from the partial fiber debonding and the nucleation of microcracks is incorporated into the constitutive model. To validate the proposed model, the predicted effective stiffness of transversely isotropic composites under far field loading conditions is compared with analytical solutions. The constitutive model incorporating the damage models is then implemented into a finite element code to numerically characterize the elastic behavior of laminated composites. Finally, the present predictions on the stress-strain behavior of laminated composite plate containing an open hole is compared with experimental data to verify the predictive capability of the model.

Original languageEnglish
Pages (from-to)5674-5689
Number of pages16
JournalInternational Journal of Solids and Structures
Volume43
Issue number18-19
DOIs
StatePublished - Sep 1 2006

Fingerprint

Constitutive Modeling
Micromechanics
micromechanics
Laminated Composites
Laminated composites
Constitutive Model
Constitutive models
composite materials
Tensors
Tensor
Inclusion
Fiber
Debonding
Laminated Plates
Microcracks
Transversely Isotropic
Composite Plates
Fibers
Mechanical Behavior
Far Field

Keywords

  • Damage modeling
  • Finite element implementation
  • Micromechanics
  • Stiffness transformation
  • Unidirectional laminated composites

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Micromechanics-based constitutive modeling for unidirectional laminated composites. / Liang, Z.; Lee, H. K.; Suaris, Wimal.

In: International Journal of Solids and Structures, Vol. 43, No. 18-19, 01.09.2006, p. 5674-5689.

Research output: Contribution to journalArticle

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