Three-dimensional analytical model for effective elastic constants of transversely isotropic plates with multiple cracks: Application to stiffness reduction and steady-state cracking of composite laminates

Sota Onodera, Tomonaga Okabe

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

An analytical three-dimensional effective elastic constant of transversely isotropic plates that include ply cracks is proposed using a continuum damage mechanics approach. Two damage parameters associated with tensile and shear damage are formulated as functions of ply crack density using local stress fields that satisfy the equilibrium equations. Three-dimensional laminate theory is then employed to formulate the effective compliance of the laminate using the effective compliance of a damaged ply, and an analytical steady-state cracking model is established. The proposed model reproduces the thermomechanical properties and the crack initiation stress of laminates.

Original languageEnglish
Article number106595
JournalEngineering Fracture Mechanics
Volume219
DOIs
Publication statusPublished - 2019 Oct 1

Keywords

  • Crack initiation
  • Damage mechanics
  • Fibre reinforced materials
  • Micromechanics and/or materials
  • Polymer matrix composites

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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