Bending Properties and Failure Characteristics of Glass Fiber Reinforced Epoxy Resin Composites

Taking the epoxy glass fiber reinforced plastic pressed by unidirectional glass fiber/epoxy resin prepreg and a plain glass fiber/epoxy resin prepreg as the research object, the bending tests were carried out, and the bending strength of samples were compared and analyzed. The results show that for the laying mode of unidirectional fiber and single angle, the 0° fiber sample has higher bending strength. For the unidirectional fiber cross ply, the specimens with 0° fiber and 90° fiber alternating ply have higher bending strength. For different lamination methods, the bending strength of the specimen with 0° fiber placed on the outermost side is higher than that of the specimen with 90° fiber placed on the outermost side. The bending strength of unidirectional glass fiber specimen is slightly higher than that of plain glass fiber specimen.