Interlaminar fracture analysis in the GII-GIII plane using prestressed transparent composite beams

András Szekrényes, William Martins Vicente

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

This work presents the mixed-mode II/III prestressed split-cantilever beam specimen for the fracture testing of composite materials. In accordance with the concept of prestressed composite beams one of the two fracture modes is provided by the prestressed state of the specimen, and the other one is increased up to fracture initiation by using a testing machine. The novel beam-like specimen is able to provide any combinations of the mode-II and mode-III ERRs. Data reduction is made by using the virtual crack-closure technique. The applicability and the limitations of the novel fracture mechanical test are demonstrated using unidirectional glass/polyester composite specimens. If only crack propagation onset is involved then the mixed-mode beam specimen can be used to obtain the fracture criterion of transparent composite materials in the GII-GIII plane in a relatively simple way.

Original languageEnglish
Pages (from-to)95-103
Number of pages9
JournalComposites Part A: Applied Science and Manufacturing
Volume43
Issue number1
DOIs
Publication statusPublished - Jan 1 2012

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Keywords

  • A. Glass fibers
  • B. Delamination
  • C. Finite element analysis (FEA)
  • D. Mechanical testing

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials

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