Experimental and Numerical Studies on the Shear Properties of Rubber Bearing Supports with Parameters of Axial Stress

In this study, in order to investigate the shear properties of the Rubber Bearing supports (RB) with a tensile axial force, cyclic loading tests varied with axial forces of RB test specimens were conducted. In the tests, using 4 test specimens with same specification, 6MPa compressive stress, 0MPa, 1MPa tensile stress and 2MPa tensile stress as the axial stress were loaded on each test specimen. As shear loadings, 175%, 250% and 300% shear strain were loaded by a displacement control loading method. As further investigation, in order to examine the local internal stress of the rubber bearing supports subjected to a tensile axial force and a shear force, FE analyses taken into account the hyperelastic and viscoelastic properties of a rubber material were conducted. After verifying the reproducibility for the experiments by the analyses, the local stress states of the rubber bearing supports were investigated.