GS0306 Simultaneous Measurement of Complex Modulus and Viscoelastic Poisson's Ratio by Cycling Loading Test

Abstract

In this study, the complex modulus and Poisson's ratio are measured by the dynamic viscoelasticity tests that gives the sine wave in the epoxy resin. The lateral and transverse strains of an uniaxial specimen under cycling loading test are measured by using a digital image correlation method. Poisson's ratio is calculated as the ratio of lateral and transverse strains. Then, storage and loss moduli are calculated by using the phase difference between the input strain and stress response. Master curve is created by using the time-temperature superposition principle superposition principle.