High Strength Glass Fibre-Resin Composites

Abstract

I have reported that the mean breaking stress of undamaged single fibres of borosilicate glass, tested in tension is consistent at 3.66 kN mm−2 over a wide range of fibre diameters, with little scatter1. Commercial glass fibre strand, consisting of a large number of fibres aligned in parallel array, fractures at a mean breaking stress of 1.04 kN mm−2; and the value is determined by the individual fibre diameter in the strand. Single fibres taken from such strand have a mean breaking stress of 1.73 kN mm−2. For both strand, and damaged fibres taken from the strand, the scatter in the results is large.