Definition and measurement of the shear-lag parameter, beta, as an index of the stress transfer efficiency in polymer composites (Journal article)

Galiotis, C./ Paipetis, A.

The shear-lag parameter, beta, employed in various problems of shear-lag analysis of composites is an unknown parameter which, in certain cases, is impossible to define. In this paper, a new methodology is proposed for the definition and subsequent experimental measurement of beta for various single-fibre model composites. It is argued that, if beta is defined as a fitting parameter for the solution of the shear-lag differential equation, then it can effectively serve as a stress-transfer efficiency index. The dependence of beta upon the conditions prevailing at the fibre-matrix interface will be demonstrated by measuring beta as a function of the fibre sizing in a carbon-epoxy composite system. (C) 1998 Chapman & Hall.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών
Keywords: laser raman-spectroscopy,model composites,fiber,microscopy
ISSN: 0022-2461
Link: <Go to ISI>://000071938500003
Publisher: Kluwer Academic Publications
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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