An Improved Method for Predicting Mechanical Properties of Fibre Composite Materials

摘要

A mathematical model is presented which enables the mechanical properties of fibre/resin composites to be calculated with improved accuracy. The model is based on the standard netting analysis, but the indirect contributions of the fibre have been allowed for mathematically by introducing two hypothetical 'lateral fibres'. The model has been used to analyse stiffness and strength data for glass-fibre/epoxide-resin laminates, and to predict the behaviour of a glass-fibre pressure vessel under simultaneous bending and internal pressure. Data predicted by the model did not differ from observed data by more than plus or minus 17 per cent. The behaviour of the pressure vessel was predicted satisfactorily. (Author)