Interfacial phenomena in glass fibre reinforced polyester resin with low profile additives - Part I - Micromechanical evaluation by pull out testing

The interfacial response of a glass fibre/unsaturated polyester resin matri x composite has been evaluated by means of single fiber pull-out tests. The nature of fibre sizing, more specifically sizing solubility, affects the d ebonding behavior. A confrontation of experimental data to current micromec hanical models, assuming either mechanical or energetic criteria, proves qu ite efficient in relating stability of the debonding process to sizing char acteristics. (C) 1999 Kluwer Academic Publishers.