Finite element analysis of unbonded square fiber-reinforced elastomeric isolators (FREIs) under lateral loading in different directions

Compared to conventional elastomeric bearings, fiber-reinforced elastomeric isolators (FREIs) are expected to cost much less and be easier to install, particularly when unbonded isolators are utilized. Due to the complex lateral response of unbonded FREIs, only a limited number of analytical studies are available in the literature. In addition, most of these analytical studies are based on a number of simplifying assumptions, applicable only to …