Abstract
In this paper, the residual strain of the fiber-reinforced rubber (FRR) in a cyclic tensile test was investigated. The FRR is used in seal materials, tires, and so on. This material is a composite material made of rubber matrix reinforced with fibers. So, it shows higher stiffness along the reinforced fiber. Products listed above are used under cyclic deformation. So, stress softening and the residual strain of the FRR should be considered for design. Therefore, the cyclic tensile test was discussed at each tensile direction. The result showed anisotropic behavior, stress softening, and the residual strain at each tensile direction.
