ABSTRACT The possibility of tailor placement of fibres in composites has opened up many opportunities to improve all glass and all carbon composites by hybrid composites where glass and carbon fibres are combined in various proportions. The failure mechanism is first carbon fibres fail due to their low strain to failure c and then the load gets transferred to the glass fibres. This results in a unique M shaped stress strain response depending on the glass carbon ratio. The micro cracks induced during manufacturing process also influence the sequency of failure and final properties of the hybrids. An experimental and analytical investigation was performed to study the influence of broken fibres, voids in matrix and fibre-matrix de-bond. The study has resulted in a development of a RVE model for hybrid composites that can be used in multiscale modelling of hybrid composites.