Effect of reinforcement geometry on stress intensity factor calibrations in composites

H. Harel, G. Marom, S. Fischer, I. Roman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Stress intensity factors, for loaded cracked composites of epoxy resin reinforced with E-glass fibres, were determined by employing an experimental compliance procedure. The results indicate that the stress intensity factors are significantly affected by the reinforcement geometry. To extend the applicability of the stress intensity factor to inhomogeneous composite materials, it is proposed that the effect of reinforcement be taken into account in the form: K = f (σ, c, g) where σ is the far field stress, c is the crack depth, and g is a function of the reinforcement geometry. Consequently, the Srawley-Brown K calibration derived for homogeneous materials cannot be used for composites. Instead, procedures, such as the experimental compliance calibration presented in this paper, that account for the effect of reinforcement geometry, should be utilized.

Original languageEnglish
Pages (from-to)69-72
Number of pages4
JournalComposites
Volume11
Issue number2
DOIs
StatePublished - Apr 1980

Fingerprint

Dive into the research topics of 'Effect of reinforcement geometry on stress intensity factor calibrations in composites'. Together they form a unique fingerprint.

Cite this