Beam and finite element analysis of quasi-unidirectional composite SLB and ELS specimens

A. Szekrényes, József Uj

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The mixed-mode I/II delamination problem in composite specimens was investigated using closed-from solutions, the finite element technique and experiments. Unidirectional glass/polyester composite laminates were manufactured and tested. The mixed-mode I/II SLB and ELS specimen configurations were used in order to obtain compliance and fracture energy predictions. Linear beam theories incorporating transverse shear and elastic foundation effects were utilized to calculate the displacements of both the SLB and ELS specimens. The compliance and fracture energy was calculated as the superposition of the various contributions. Plane stress finite element models including some accompanying effects were constructed. The analytical and numerical results were compared with the experiments and very good agreement was found.

Original languageEnglish
Pages (from-to)2393-2406
Number of pages14
JournalComposites Science and Technology
Volume64
Issue number15 SPEC. ISS.
DOIs
Publication statusPublished - Nov 2004

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Fracture energy
Finite element method
Polyesters
Composite materials
Delamination
Laminates
Experiments
Glass
Compliance

Keywords

  • B. Fracture toughness
  • Timoshenko beam theory

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

Cite this

Beam and finite element analysis of quasi-unidirectional composite SLB and ELS specimens. / Szekrényes, A.; Uj, József.

In: Composites Science and Technology, Vol. 64, No. 15 SPEC. ISS., 11.2004, p. 2393-2406.

Research output: Contribution to journalArticle

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