Abstract
An experimental study of spallation in phenolic-resin based woven roving glass fibre reinforced composite material under uniaxial strain condition is reported in this paper. Experiments were carried out with a 101 mm bore single-stage light gas gun. The stress waves induced by plate impact propagate along the normal to glass fibre mats. The experiments show that the threshold of incipient spallation in this material depends strongly on the duration of stress wave and that this incipient spallation appears essentially in one layer. The criterion of spallation in this material given in this paper is in good agreement with experimental results. Besides, the spallation in phenolic-resin based obliquely laminated woven roving glass fibre reinforced composite material is also discussed in this paper.
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