EFFECTS OF THICKNESS ON STRENGTH OF EPOXY AND PHENOLIC LAMINATES REINFORCED WITH GLASS FABRIC

摘要

Results of tensile and compressive tests on laminates made with 3 types of resin and 2 types of reinforcement in thicknesses ranging from l/lOO inch to l/8 inch showed that the stress at failure de¬creased with decreasing thickness. The magnitude of the decrease varies with the material. The decrease for 0.030 inch material, about the thinnest used in aircraft, may be as great as 12 percent of the strength of 1/4 inch thick material.