The impact of fibre strength on the strength of its reinforced epoxy polymer

Fibre composites are getting more popular as structural materials for their stiffness, strength, and toughness in the direction of fibre longitudinal axis. Three different fibres each of 5.3, 4.6, and 3.4 GPa in strength were used in this study. They were made in different preforms to make composite materials. The tensile strength values of composites were evaluated on the basis of the fibre tensile strengths and the structure of the preforms used for the fabrication of these composites. Each fibre showed a different mathematical relation with the tensile strength of the corresponding composite material. This gives an indication that the tensile strength of the composite material is affected by that of the fibre in conjunction with the preform structure.