STATIC/DYNAMIC TESTS OF HIGH-HARDNESS RUBBER FOR RESPONSE CONTROL AND ITS TIME HISTORY ANALYSIS METHOD

Abstract

This paper proposes a time-history analysis model of high-hardness rubber that was recently developed for seismic vibration control of structures. The model combines elasto-plastic, visco-elastic, and nonlinear viscous constitutive rules. The rubber mechanical properties depend on frequency, temperature, and strain amplitude. The dependencies are effectively modeled through findings of their equivalencies. The nonlinearities under the idealized harmonic loading as well as random loading are carefully considered in the model. The model shows excellent accuracy over a wide range of temperature, frequency, and shear strains of a variety of histories.