MICROSTRUCTURE AND FRACTURE TOUGHNESS OF SHORT FIBRE REINFORCED INJECTION-MOULDED PEEK COMPOSITES.

J. Karger-Kocsis, K. Friedrich

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The fracture toughness (K//Q) of injection-molded polyetheretherketone (PEEK) composites containing 20 and 30% glass and 30% carbon fibers, respectively, was evaluated using compact tension specimens. K//Q is regarded as a function of the microstructural efficiency factor (M) which takes into account the anisotropic fiber orientation and layered structure caused by injection molding. Failure mechanisms for both the non-reinforced and reinforced PEEK were characterized by fractography in a scanning electron microscope. It was shown that in the knowledge of M and its additive terms, i. e. matrix stress conditions factor and energy absorption coefficient, the fracture and failure behavior of the composites can be predicted. The results are summarized in the form of failure and fracture maps.

Original languageEnglish
Pages (from-to)91-104
Number of pages14
JournalPlastics and Rubber Processing and Applications
Volume8
Issue number2
Publication statusPublished - 1987

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Fracture toughness
Fractography
Microstructure
Fibers
Composite materials
Energy absorption
Fiber reinforced materials
Injection molding
Carbon fibers
Electron microscopes
Scanning
Glass
polyetheretherketone
carbon fiber

ASJC Scopus subject areas

  • Engineering(all)

Cite this

MICROSTRUCTURE AND FRACTURE TOUGHNESS OF SHORT FIBRE REINFORCED INJECTION-MOULDED PEEK COMPOSITES. / Karger-Kocsis, J.; Friedrich, K.

In: Plastics and Rubber Processing and Applications, Vol. 8, No. 2, 1987, p. 91-104.

Research output: Contribution to journalArticle

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