Interlaminar stresses and energy release rates in delaminated orthotropic composite plates

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The classical laminated plate theory is applied to calculate the stresses and energy release rate function in symmetrically delaminated orthotropic plates. First, the equilibrium of classical plate forces, moments and interfacial shear stresses is formulated. Second, the displacement continuity between the interface plane of a double-plate model was considered. The governing equation system of the double-plate model consists of ten equations. As an example a delaminated, orthotropic, simply-supported plate subjected to a point force is analyzed. The distribution of the plate forces as well as the interlaminar shear stresses over the uncracked part were determined. Moreover, the mode-II and mode-III energy release rate distributions along the crack front were calculated by the J-integral. The 3D finite element model of the delaminated composite plate was also created. The results indicate a reasonably good agreement between analysis and numerical calculation.

Original languageEnglish
Pages (from-to)2460-2470
Number of pages11
JournalInternational Journal of Solids and Structures
Volume49
Issue number18
DOIs
Publication statusPublished - Sep 15 2012

Fingerprint

interlaminar stress
Energy Release Rate
Composite Plates
Energy release rate
composite materials
Shear stress
Composite materials
Orthotropic plates
Shear Stress
shear stress
energy
orthotropic plates
J integral
Cracks
J-integral
plate theory
Laminated Plates
Plate Theory
Rate Function
continuity

Keywords

  • Delamination
  • Energy release rate
  • J-integral
  • Laminated plate
  • Mixed mode II/III fracture

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Applied Mathematics
  • Modelling and Simulation

Cite this

Interlaminar stresses and energy release rates in delaminated orthotropic composite plates. / Szekrényes, A.

In: International Journal of Solids and Structures, Vol. 49, No. 18, 15.09.2012, p. 2460-2470.

Research output: Contribution to journalArticle

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