Experimental Evaluation of the Effect of the Structure of Composite Rings on Their Properties in the Radial Direction

摘要: Based on the results of bending tests cut glass-fiber-reinforced plastic rings with a longitudinal-circumferential reinforcement, their radial peel strength is evaluated. The effect fiber layout properties in direction investigated. It shown that tensile only slightly depends but basically determined by polymer interlayer between fibers. In tension, presence fibers layer leads to strain concentration, which premature failure phase composite. strain-concentration factor cannot be used for an accurate prediction breaking stresses or strains composite, because different modes pure resin and